Comparison Of Two Short Term Progestogen Based Estrous Synchronization Protocols In Yearling Heifers And Suckled Postpartum Cows Of Bos Indicus X Bos Taurus Breeding

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Comparison of Two Short-term Progestogen Based Estrous Synchronization Protocols in Yearling Heifers and Suckled Postpartum Cows of Bos Indicus X Bos Taurus Breeding

Author : Erin N. McKinniss
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (664 download)

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Book Synopsis Comparison of Two Short-term Progestogen Based Estrous Synchronization Protocols in Yearling Heifers and Suckled Postpartum Cows of Bos Indicus X Bos Taurus Breeding by : Erin N. McKinniss

Download or read book Comparison of Two Short-term Progestogen Based Estrous Synchronization Protocols in Yearling Heifers and Suckled Postpartum Cows of Bos Indicus X Bos Taurus Breeding written by Erin N. McKinniss and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In Experiment 3, yearling heifers (n = 407) were synchronized with either the SSC +TAI treatment from Experiment 1 or 7-11 treatment that included melengestrol acetate (MGA; 0.5 mg/head/d) for 7 d with GnRH 4 d after the last day of MGA followed by DPG 7 d later. Estrus was detected and heifers were inseminated similar to Experiment 1. Heifers were distributed to treatment by reproductive tract score (RTS; Scale: 1=immature to 5= estrous cycling) and BCS. The 7-11 heifers had greater (P 0.05) ER (55.2 vs. 41.9%), CR (47.0 vs. 31.3%), and SPR (33.5 vs. 24.8%) compared to SSC+TAI heifers, respectively. Heifers exhibiting estrus at 60 h after PG (61.7%) had a greater (P

Evaluation of Long-term CIDR-based Estrus Synchronization Protocols in Primiparous Two-year-old Beef Cows

Author : Jillian Mae Abel
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (958 download)

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Book Synopsis Evaluation of Long-term CIDR-based Estrus Synchronization Protocols in Primiparous Two-year-old Beef Cows by : Jillian Mae Abel

Download or read book Evaluation of Long-term CIDR-based Estrus Synchronization Protocols in Primiparous Two-year-old Beef Cows written by Jillian Mae Abel and published by . This book was released on 2015 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Development and comparison of strategies designed to enhance reproductive management of primiparous two-year-old beef cows coincide with the recent increase in heifer retention and the significant number of younger age females that are now entering the U.S. cow herd. Reproductive management of primiparous two-year-old cows presents a unique challenge in managing a beef herd, since this age group of females typically experiences the highest incidence of reproductive failure. Strategic management of replacement beef heifers and primiparous cows is necessary to ensure their continued long-term reproductive success, which provides the opportunity for beef producers to increase retention rates, reduce input costs, and ultimately enhance production efficiency. Estrus synchronization and artificial insemination (AI) are important management tools available to producers that facilitate genetic improvement and enhance reproductive efficiency. A list of recommended protocols may be used to facilitate fixed-time AI (FTAI) in beef cows and heifers, and we now know that specific protocols perform better among various age classes of females. Short-term controlled internal drug release (CIDR)-based protocols are currently the preferred method to synchronize estrus prior to FTAI in postpartum beef cows. Alternatively, long-term CIDR-based protocols have been used with greater success in beef heifers. Progestin-based estrus synchronization protocols offer the potential to induce estrous cyclicity in anestrous postpartum cows and advance conception date. Experiment 1 was designed to compare the 14-d CIDR-PG (14-d) and 7-d CO-Synch + CIDR (7-d) protocols on the basis of estrous response, pregnancy rates after fixed-time AI (FTAI), and final pregnancy in primiparous two-year-old cows. Cows assigned to 14-d (n = 355) received a CIDR insert on Day 0 with removal on Day 14. Cows assigned to 7-d (n = 349) received GnRH and CIDR inserts on Day 23. On Day 30 CIDRs were removed from 7-d cows and PGF2[alpha] was administered to all cows in each treatment. On Day 33, 66 and 72 h after PGF2[alpha], GnRH was administered concurrent with FTAI. Estrous response at FTAI was higher for 7-d compared to 14-d cows (74% vs 43%, respectively; P

Comparison of Long-term CIDR-based Protocols to Synchronize Estrus in Postpartum Beef Cows

Author : Justin Michael Nash
Publisher :
ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.:/5 (876 download)

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Book Synopsis Comparison of Long-term CIDR-based Protocols to Synchronize Estrus in Postpartum Beef Cows by : Justin Michael Nash

Download or read book Comparison of Long-term CIDR-based Protocols to Synchronize Estrus in Postpartum Beef Cows written by Justin Michael Nash and published by . This book was released on 2011 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estrus synchronization and artificial insemination are two of the most important management practices available to producers to increase reproductive performance in a beef cow-calf operation. Unfortunately, a small number of producers utilize these practices due to increased labor requirements. The use of fixed-time artificial insemination (FTAI) reduces the amount of time and labor required to detect estrus, leading to decreased input requirements. The following experiments were performed in order to compare the use of long-term controlled internal drug release (CIDR) insert-based estrus synchronization protocols prior to FTAI in estrous-cycling and anestrous postpartum beef cows. In experiments 1 and 2, two long-term CIDR-based estrus synchronization protocols were compared on the basis of physiological characteristics, including serum steroid hormone concentrations, estrous response, and follicular dynamics, as well as pregnancy rates resulting from FTAI. From these intensive trials, it was determined that both protocols yielded comparable pregnancy rates and similar physiological responses when used in postpartum beef cows. In experiment 3, the use of either a long- or short-term CIDR-based estrus synchronization protocol was compared prior to FTAI in a large-scale field trial. Results indicated that pregnancy rate resulting from FTAI was similar for both protocols. These data provide preliminary support for the use of long-term CIDR-based estrus synchronization protocols prior to FTAI in postpartum beef cows.

Comparison of Different Gonadotropin-releasing Hormone Plus Prostaglandin F[sub-2alpha] Synchronization Protocols in Bos Taurus, Bos Indicus, and Bos Indicus X Bos Taurus Postpartum Cows and Heifers

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Author : Regina D. Esterman
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (659 download)

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Book Synopsis Comparison of Different Gonadotropin-releasing Hormone Plus Prostaglandin F[sub-2alpha] Synchronization Protocols in Bos Taurus, Bos Indicus, and Bos Indicus X Bos Taurus Postpartum Cows and Heifers by : Regina D. Esterman

Download or read book Comparison of Different Gonadotropin-releasing Hormone Plus Prostaglandin F[sub-2alpha] Synchronization Protocols in Bos Taurus, Bos Indicus, and Bos Indicus X Bos Taurus Postpartum Cows and Heifers written by Regina D. Esterman and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Timed-AI pregnancy rates tended (P = 0.06) to be greater, and synchronized pregnancy rates were greater (P 0.05) for cloprostenol sodium (57.2%) compared to dinoprost tromethamine (46.2%). Breed had no effect on synchronized pregnancy rates but as days from calving increased, response to treatment increased. In heifers, estrous response, conception, and synchronized pregnancy rates were similar (P 0.05) across treatments and breeds. In Exp. 4, postpartum Angus (Bos taurus; n = 31) and Brangus (Bos indicus x Bos taurus; n = 22) cows were synchronized with Select Synch plus a new CIDR. Ovarian follicle response to GnRH was monitored using ultrasonography. Breed did not influence ovulation rate to GnRH. Cows which ovulated to GnRH had greater (P

Comparison of Progestin Based Protocols to Synchronize Estrus and Ovulation in Beef Cows

Author : Daniel Joseph Schafer
Publisher :
ISBN 13 :
Total Pages : 174 pages
Book Rating : 4.:/5 (72 download)

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Book Synopsis Comparison of Progestin Based Protocols to Synchronize Estrus and Ovulation in Beef Cows by : Daniel Joseph Schafer

Download or read book Comparison of Progestin Based Protocols to Synchronize Estrus and Ovulation in Beef Cows written by Daniel Joseph Schafer and published by . This book was released on 2005 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Evaluation of Follicle Development and Pregnancy Rates in Yearling Heifers and Lactating Cows of Bos Indicus X Bos Taurus and Bos Taurus Breeding that Were Synchronized with Progestogen-based Protocols

Download Evaluation of Follicle Development and Pregnancy Rates in Yearling Heifers and Lactating Cows of Bos Indicus X Bos Taurus and Bos Taurus Breeding that Were Synchronized with Progestogen-based Protocols PDF Online Free

Author : Regina D. Esterman
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (741 download)

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Book Synopsis Evaluation of Follicle Development and Pregnancy Rates in Yearling Heifers and Lactating Cows of Bos Indicus X Bos Taurus and Bos Taurus Breeding that Were Synchronized with Progestogen-based Protocols by : Regina D. Esterman

Download or read book Evaluation of Follicle Development and Pregnancy Rates in Yearling Heifers and Lactating Cows of Bos Indicus X Bos Taurus and Bos Taurus Breeding that Were Synchronized with Progestogen-based Protocols written by Regina D. Esterman and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Differences were observed between the two groups, but overall pregnancy rates were similar for Angus and Brangus, as well as the modified 7 d CIDR and 5 d CIDR treatments.

Comparison of Long-term Progestin-based Protocols to Synchronize Estrus in Beef Heifers

Author : Daniel A. Mallory
Publisher :
ISBN 13 :
Total Pages : 89 pages
Book Rating : 4.:/5 (558 download)

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Book Synopsis Comparison of Long-term Progestin-based Protocols to Synchronize Estrus in Beef Heifers by : Daniel A. Mallory

Download or read book Comparison of Long-term Progestin-based Protocols to Synchronize Estrus in Beef Heifers written by Daniel A. Mallory and published by . This book was released on 2009 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiment 1 evaluated two long-term progestin-based and controlled internal drug release estrus synchronization protocols to determine their potential to facilitate fixed-time artificial insemination in estrous cycling and prepubertal beef heifers. Conception to AI, AI pregnancy, and final pregnancy rates did not differ between treatments. Experiment 2 compared two long-term progestin-based estrus synchronization protocols to evaluate their potential to facilitate fixed-time artificial insemination in estrous cycling and prepubertal beef heifers. Estrous response after PG was greater among CIDR treated heifers compared to MGA treated heifers. Conception to AI, AI pregnancy, and final pregnancy rates did not differ between treatments. In summary, the long-term CIDR protocol compared favorably with the MGA protocol. Experiment 3 was conducted to compare pregnancy rates resulting from fixed-time AI after administration of either one of two long-term CIDR-based protocols. CIDR-GnRH-PG and CIDR-PG treated heifers were fixed-time inseminated at 72 or 66 hr after PG, respectively. Fixed-time AI pregnancy rates tended to be higher among CIDR-PG compared to CIDR-GnRH-PG treated heifers. Final pregnancy rates did not differ between treatments. In summary, both long-term progestin-based protocols were effective in synchronizing estrus prior to fixed-time AI in beef heifers.

Synchronization and Ovarian Development in Dairy Cows and Heifers

Author : Rebecca L. J. Coral Escalante
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (982 download)

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Book Synopsis Synchronization and Ovarian Development in Dairy Cows and Heifers by : Rebecca L. J. Coral Escalante

Download or read book Synchronization and Ovarian Development in Dairy Cows and Heifers written by Rebecca L. J. Coral Escalante and published by . This book was released on 2012 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reproductive management is an important factor for improving reproductive efficiency in the dairy industry. Reproductive efficiency affects the profitability of the dairy herd by decreasing days not pregnant and increasing milk produced in a cow's lifetime. There are many reproductive programs used to synchronize the estrous cycle. Prostaglandin F2[alpha] (PGF2[alpha])-based programs synchronize estrus before artificial insemination (AI) after observed estrus. Some disadvantages to PGF2[alpha]-based reproductive programs are time requirements necessary for estrus detection (2 to 3 times/d for about 30 min) and lack of estrus activity observed in dairy cows (only about 40% will show estrus). An advantage to PGF2[alpha]-based reproductive programs is acceptable conception rates (about 45 to 60%) that can surpass timed AI (TAI). Reproductive programs that employ TAI are achieved by synchronization of ovulation with a series of PGF2[alpha] and gonadotropin releasing hormone (GnRH) injections followed by insemination 16 h later. Some of the advantages to synchronization of ovulation followed by TAI are: no estrus detection and acceptable conception rates (40 to 50%). Many reproductive programs include a presynchronization step. The advantage to presynchronization is a tightened synchrony by getting more cows and heifers in the same stage of the estrous cycle before estrous synchronization and AI or TAI. There are a variety of presynchronization methods used in cattle. One of the most common programs is two injections of PGF2[alpha] 14 d apart 12 d before initiation of Ovsynch (d 0 GnRH, 7 d, PGF2[alpha], 56 h, GnRH, 16 h, TAI) (Moreira et al., 2001). Another is double Ovsynch where the Ovsynch program is administered 7 d before another Ovsynch program (Giordano et al., 2012). Long-term progestogens can also be used as a means to presynchronize the estrous cycle and has been successful in beef cows and heifers. Long term progestogens, such as a CIDR (controlled internal drug release) for 14 d, will suppress estrus, inhibit ovulation, and induce the development of a persistent dominant follicle that can ovulate after CIDR removal (Ahmad et al., 1995; Revah and Butler, 1996; Roche et al., 1999). Ovulation of the dominant follicle allows for cows and heifers to be late in the luteal stage of the estrous cycle before PGF2[alpha] and AI or PGF2[alpha], 56 h, GnRH, 16 h, TAI. Presynchronization has shown to decrease the days to pregnancy. This is an advantage because it will directly affect the number of days a cow is not pregnant and the amount of milk she will produce in her lifetime. The objective of this research was to evaluate pregnancies per AI, ovarian follicular and luteal development of postpartum dairy cows and dairy heifers in response to long term progestin-based programs (14dCIDR) compared with PGF2[alpha]-based programs. Experiment 1 (Chapter 2) evaluated the use of a 14dCIDR-PGF2[alpha] program to a PGF2[alpha]-alone program for synchronizing dairy heifers before AI. Heifers were examined by real-time ultrasonography during treatment to assess the ovarian response. Heifers were also monitored for estrus following presynchronization and treatment of PGF2[alpha] to assess ovulation response. The 14dCIDR-PGF2[alpha] system resulted in more heifers with a larger CL at the time of PGF2[alpha]. This is ideal because of the greater luteolytic effects of PGF2[alpha] has on a more mature CL. The 14dCIDR-PGF2[alpha] heifers were AI and became pregnant sooner compared with the PGF2[alpha]-alone heifers. Experiment 2 (Chapter 3) evaluated the use of a 14dCIDR_TAI program compared with a PGF2[alpha]-based program in grazing dairy cows. The 14dCIDR_TAI program employed synchronization of ovulation before TAI and the PGF2[alpha]-based program employed synchronization of estrus with AI after observed estrus. The evaluation of reproductive efficiency for each program was examined. Cows assigned to the 14dCIDR_TAI program were AI early in the breeding season and were all AI by the end the breeding season compared with the PGF2[alpha]-based program. The PGF2[alpha]-based program had a greater first service conception rate (FSCR) compared with the 14dCIDR_TAI program but did not achieve a greater number of pregnancies after two inseminations. Experiment 3 (Chapter 4) evaluated the use of a 14dCIDR_TAI program compared with another common TAI program (Presynch-Oysynch56) in postpartum lactating dairy cows. Follicular dynamics and luteal development were monitored in both programs. Each program was evaluated for effectiveness to presynchronize the estrous cycle and establish pregnancy. The 14dCIDR_TAI and the Presynch-Ovsynch56 programs were comparable in their effectiveness to presynchronize the estrous cycle and establish pregnancy in cows that were cycling. Non-cycling cows treated with the Presynch-Ovsynch56 program had lesser conception rate compared with those that were cycling. There was no difference in conception rate with non-cycling or cycling cows treated with the 14dCIDR_TAI. Experiment 4 (Chapter 5) evaluated the use of the 14dCIDR_TAI program with or without PGF2[alpha] at CIDR removal. It is possible for cows to still have a CL after the end of the 14dCIDR treatment either due to longer estrous cycles or the cow was early in her estrous cycle when the CIDR was inserted. The addition of PGF2[alpha] may help improve the synchrony and conception rates after presynchronization of the estrous cycle before TAI. The addition of the PGF2[alpha] at CIDR removal demonstrated an increase in the number of cows that showed estrus after presynchronization but conception rates were comparable. Overall, the use of the 14dCIDR as means to presynchronize the estrous cycle has been demonstrated as an effective way to enhance the synchrony and decrease the interval to pregnancy in dairy cows and heifers.

Comparison of CIDR-based Protocols to Synchronize Estrus in Beef Heifers

Author : Nicole Renee Leitman
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (216 download)

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Book Synopsis Comparison of CIDR-based Protocols to Synchronize Estrus in Beef Heifers by : Nicole Renee Leitman

Download or read book Comparison of CIDR-based Protocols to Synchronize Estrus in Beef Heifers written by Nicole Renee Leitman and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Estrus synchronization and artificial insemination (AI) are reproductive management techniques that allow beef producers to enhance the reproductive efficiency and genetic composition of their cow herd. However, U.S. beef producers have been reluctant to adopt these reproductive management tools, largely due to time and labor. Recent research to synchronize estrus, therefore, has focused on the development of estrus synchronization protocols that facilitate fixed-time AI (FTAI). Although protocols have been developed that allow the successful use of FTAI in beef cows, the same degree of success in beef heifers has not been realized. Additionally, no published research has focused on characterizing the physiological responses to long- and short-term CIDR-based protocols in beef heifers. Experiment 1 evaluated ovulatory response to GnRH and synchrony of estrus and ovulation after PGF2[alpha] (PG) in beef heifers. The CIDR Select and Select Synch + CIDR protocols were evaluated among estrous cycling and prepubertal beef heifers and the CIDR-PG and Select Synch protocols were evaluated among estrous cycling beef heifers. A reduced variance for the intervals to estrus and ovulation was detected for estrous cycling heifers treated with the CIDR Select protocol in comparison to the other 3 treatments. The combined results of the estrous cycling and prepubertal heifers revealed an increased ovulatory response to GnRH for heifers treated with the CIDR Select protocol compared to the Select Synch + CIDR protocol, which ultimately resulted in a reduced variance for interval to estrus and ovulation after PG. Furthermore, no differences within treatment were detected in the variance for interval to estrus or ovulation among estrous cycling and prepubertal heifers treated with the CIDR Select protocol. These results suggest that the CIDR Select protocol may facilitate FTAI more effectively in mixed groups of estrous cycling and prepubertal beef heifers. Experiments 2 and 3 evaluated modifications to the CIDR Select protocol. Estrous cycling beef heifers were used in Exp. 2. The hypothesis tested was that reducing the interval from CIDR removal to GnRH administration by 2 d would facilitate an improvement in the synchrony of estrus after PG. Although a larger number of heifers that were assigned to the 28 d protocol were on d 5 and 6 at the time GnRH was administered, response to GnRH was not improved and synchrony of estrus was not enhanced following PG. In Exp. 3, a second modification to the CIDR Select protocol was evaluated using estrous cycling and prepubertal beef heifers. The hypotheses tested were: 1) reducing the interval from CIDR removal to GnRH may facilitate an improvement in the synchrony of estrus after PG, and 2) the addition of GnRH following CIDR removal is required to improve the synchrony of estrus after PG. Although no difference in estrous response was detected, mean intervals to estrus and variance for interval to estrus differed based on the interaction of treatment length, GnRH, and estrous cyclicity status. The results from Exp. 3 clearly suggest that further evaluation of long-term CIDR-based protocols is required.

Nutrient Requirements of Beef Cattle

Author : Subcommittee on Beef Cattle Nutrition
Publisher : National Academies Press
ISBN 13 : 0309069343
Total Pages : 249 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Nutrient Requirements of Beef Cattle by : Subcommittee on Beef Cattle Nutrition

Download or read book Nutrient Requirements of Beef Cattle written by Subcommittee on Beef Cattle Nutrition and published by National Academies Press. This book was released on 2000-05-16 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: As members of the public becomes more concious of the food they consume and its content, higher standards are expected in the preparation of such food. The updated seventh edition of Nutrient Requirements of Beef Cattle explores the impact of cattle's biological, production, and environmental diversities, as well as variations on nutrient utilization and requirements. More enhanced than previous editions, this edition expands on the descriptions of cattle and their nutritional requirements taking management and environmental conditions into consideration. The book clearly communicates the current state of beef cattle nutrient requirements and animal variation by visually presenting related data via computer-generated models. Nutrient Requirements of Beef Cattle expounds on the effects of beef cattle body condition on the state of compensatory growth, takes an in-depth look at the variations in cattle type, and documents the important effects of the environment and stress on food intake. This volume also uses new data on the development of a fetus during pregnancy to prescribe nutrient requirements of gestating cattle more precisely. By focusing on factors such as product quality and environmental awareness, Nutrient Requirements of Beef Cattle presents standards and advisements for acceptable nutrients in a complete and conventional manner that promotes a more practical understanding and application.

Bovine Medicine

Author : Anthony H. Andrews
Publisher : John Wiley & Sons
ISBN 13 : 0470752394
Total Pages : 1233 pages
Book Rating : 4.4/5 (77 download)

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Book Synopsis Bovine Medicine by : Anthony H. Andrews

Download or read book Bovine Medicine written by Anthony H. Andrews and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 1233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bovine Medicine provides practical and comprehensive information oncattle disease and production and is a key reference for all largeanimal vets. Since the first edition was published in 1991 therehave been significant improvements in disease control andmanagement of cattle. Almost all parts of the book have beenupdated and completely rewritten. There are new chapters onsurgery, embryo transfer, artificial insemination, ethno-veterinarymedicine and biosecurity, and a new consolidating chapter on theinteraction between the animal, environment, management anddisease. The previous edition has sold all over the world, and as aresult of this a greater emphasis has been placed on conditions andtheir treatment in areas other than temperate regions. A newsection entitled "Global Variation in Cattle Practice" has beenincluded with contributors discussing bovine medicine practice intheir part of the world. All in all this is an outstanding resource for any practisingvet and an excellent reference for veterinary students.

Biotechnologies Applied to Animal Reproduction

Author : Juan Carlos Gardón
Publisher : CRC Press
ISBN 13 : 1000731189
Total Pages : 291 pages
Book Rating : 4.0/5 (7 download)

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Book Synopsis Biotechnologies Applied to Animal Reproduction by : Juan Carlos Gardón

Download or read book Biotechnologies Applied to Animal Reproduction written by Juan Carlos Gardón and published by CRC Press. This book was released on 2020-11-01 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume focuses on recent trends and new technologies used in the management of reproduction in major farm animals, focusing on both males and females of bovine, equine, and porcine species. With chapters written by scientists who specialize in their respective topics, the volume presents a selection of different technologies that have been developed to assure reproductive success by improving reproductive efficiency, generating germplasm banks, and maintaining genetic diversity in cattle, horses, and pigs. In the last decade, reproductive technologies in veterinary medicine have progressed considerably, providing high profitability to livestock farms. This book provides basic and applied information on the most used reproductive technologies in bovine, equine, and porcine species for academics, scientists, and veterinarians. The volume discusses reproductive and postpartum management, reproductive ultrasound, sperm management, egg retrieval, artificial insemination, embryo transfer, nutrition, genetics, and certain clinical aspects, such as endocrinology and robustness of reproductive systems.

Sustainable Animal Agriculture

Author : Ermias Kebreab
Publisher : CABI
ISBN 13 : 1780640420
Total Pages : 335 pages
Book Rating : 4.7/5 (86 download)

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Book Synopsis Sustainable Animal Agriculture by : Ermias Kebreab

Download or read book Sustainable Animal Agriculture written by Ermias Kebreab and published by CABI. This book was released on 2013-12-13 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to meet increasing global demand for meat and animal by-products increasingly intensive animal production is necessary. Creating a sustainable system in animal agriculture that works in different production environments is a major challenge for animal scientists. This book draws together themes on sustainability that have emerged as the most pressing in recent years. Addressing practical topics such as air quality, manure management, animal feeds, production efficiency, environmental sustainability, biotechnology issues, animal welfare concerns, societal impacts and an analysis of the data used to assess the economic sustainability of farms.

Reproductive Technologies in Farm Animals, 2nd Edition

Author : Ian Gordon
Publisher : CABI
ISBN 13 : 178064602X
Total Pages : 353 pages
Book Rating : 4.7/5 (86 download)

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Book Synopsis Reproductive Technologies in Farm Animals, 2nd Edition by : Ian Gordon

Download or read book Reproductive Technologies in Farm Animals, 2nd Edition written by Ian Gordon and published by CABI. This book was released on 2017-06-23 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building on the successful structure of the first edition, the second edition of Reproductive Technologies in Farm Animals has been totally updated and revised to provide an up to date account of the key techniques employed in manipulating reproduction in farm animals, including beef and dairy cattle, pigs, sheep, goats, buffaloes, camelids, horses and poultry. A classic introductory text to the subject, the book is based on a comprehensive review of the current literature. This text remains key reading for students in animal science, agriculture, veterinary medicine and biology, and veterinary practitioners and farmers who wish to keep updated on developments in techniques that may be useful in their daily practice.

Goat Science

Author : Sándor Kukovics
Publisher : BoD – Books on Demand
ISBN 13 : 1789232023
Total Pages : 414 pages
Book Rating : 4.7/5 (892 download)

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Book Synopsis Goat Science by : Sándor Kukovics

Download or read book Goat Science written by Sándor Kukovics and published by BoD – Books on Demand. This book was released on 2018-06-20 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Goat science covers quite a wide range and varieties of topics, from genetics and breeding, via nutrition, production systems, reproduction, milk and meat production, animal health and parasitism, etc., up to the effects of goat products on human health. In this book, several parts of them are presented within 18 different chapters. Molecular genetics and genetic improvement of goats are the new approaches of goat development. Several factors affect the passage rate of digesta in goats, but for diet properties, goats are similar to other ruminants. Iodine deficiency in goats could be dangerous. Assisted reproduction techniques have similar importance in goats like in other ruminants. Milk and meat production traits of goats are almost equally important and have significant positive impacts on human health. Many factors affect the health of goats, heat stress being of increasing importance. Production systems could modify all of the abovementioned characteristics of goats.

Modern Livestock and Poultry Production

Author : James R. Gillespie
Publisher : Delmar
ISBN 13 :
Total Pages : 680 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Modern Livestock and Poultry Production by : James R. Gillespie

Download or read book Modern Livestock and Poultry Production written by James R. Gillespie and published by Delmar. This book was released on 1981 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Designed for career and technical high school students who require competency in all phases and types of livestock production, the Ninth Edition of MODERN LIVESTOCK AND POULTRY PRODUCTION has been revised to include the most up-to-date, comprehensive information in the field. With coverage of basic animal science and livestock industry information as well as current issues in animal agriculture, this engaging text covers everything students need to know about livestock and poultry animals for classroom study and beyond. Through updated visual aids, real-world applications, and comprehensive study tools, the Ninth Edition provides students with a solid understand of the anatomy, physiology, nutrition, feeding, and reproduction of multiple livestock and poultry breeds." --Google Books.

Sustainable Agriculture Reviews 54

Author : Vinod Kumar Yata
Publisher :
ISBN 13 : 9783030765309
Total Pages : 0 pages
Book Rating : 4.7/5 (653 download)

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Book Synopsis Sustainable Agriculture Reviews 54 by : Vinod Kumar Yata

Download or read book Sustainable Agriculture Reviews 54 written by Vinod Kumar Yata and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews concepts and recent advances of biotechnological approaches for livestock production. Indeed, biotechnologies have recently emerged as powerful tools for animal breeding, genetics, production, nutrition, and animal health. Applications to the production of livestock such as cattle, camel, and poultry are detailed. Chapters also present biotechnological applications for diagnostics, animal nutrition, and animal food production.