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The Effects Of Gonadotropin Releasing Hormone On Conception In Postpartum Anestrus Angus Beef Cows And Heifers
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Book Synopsis The Effects of Gonadotropin Releasing Hormone on Conception in Postpartum Anestrus Angus Beef Cows and Heifers by : Michael Wade Boenig
Download or read book The Effects of Gonadotropin Releasing Hormone on Conception in Postpartum Anestrus Angus Beef Cows and Heifers written by Michael Wade Boenig and published by . This book was released on 2012 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to determine if a pre synchronization gonadotropin releasing hormone (GnRH) injection would increase conception percentages in postpartum anestrous angus beef cows and heifers. Sixty-four Angus females (42 multiparous cows and 20 heifers) from the Angelo State University's Management, Instruction and Research Center were randomly assigned to two treatments groups at the beginning of the study. The control group were administered a two shot prostaglandin estrous synchronization protocol. The treatment group were administered a GnRH injection thirteen days prior to the two shot prostaglandin synchronization protocol. However, only 30 females showed signs of estrus and were artificially inseminated. Results in cows and heifers were similar, and no differences were found among the two treatment groups (P>0.05). Differences might be noted with a larger number of females that show signs of estrus. Conception was recorded by the use of ultrasound, and is a viable management tool.
Book Synopsis Gonadotropin Releasing Hormone by : Chin Nyean Lee
Download or read book Gonadotropin Releasing Hormone written by Chin Nyean Lee and published by . This book was released on 1981 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bovine Reproduction by : Richard M. Hopper
Download or read book Bovine Reproduction written by Richard M. Hopper and published by John Wiley & Sons. This book was released on 2014-08-18 with total page 2206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bovine Reproduction is a comprehensive, current reference providing information on all aspects of reproduction in the bull and cow. Offering fundamental knowledge on evaluating and restoring fertility in the bovine patient, the book also places information in the context of herd health where appropriate for a truly global view of bovine theriogenology. Printed in full color throughout, the book includes 83 chapters and more than 550 images, making it the most exhaustive reference available on this topic. Each section covers anatomy and physiology, breeding management, and reproductive surgery, as well as obstetrics and pregnancy wastage in the cow. Bovine Reproduction is a welcome resource for bovine practitioners, theriogenologists, and animal scientists, as well as veterinary students and residents with an interest in the cow.
Book Synopsis Effect of Gonadotropin Releasing Hormone on Pregnancy Rates of Beef Cows and Heifers Synchronized with Melengestrol Acetate and Prostaglandin F2̳[̳alpha] by : Teresa Sue Dyson
Download or read book Effect of Gonadotropin Releasing Hormone on Pregnancy Rates of Beef Cows and Heifers Synchronized with Melengestrol Acetate and Prostaglandin F2̳[̳alpha] written by Teresa Sue Dyson and published by . This book was released on 1997 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Suckling on Reproduction in Postpartum Beef Cows by : William Earl Graves
Download or read book The Effects of Suckling on Reproduction in Postpartum Beef Cows written by William Earl Graves and published by . This book was released on 1967 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Postpartum Fertility, Ovarian Function and Prolactin Response in Beef Cattle Producing Twins by : Matthew Benjamin Wheeler
Download or read book Postpartum Fertility, Ovarian Function and Prolactin Response in Beef Cattle Producing Twins written by Matthew Benjamin Wheeler and published by . This book was released on 1982 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Gonadotropins in Inducing Multiple Ovulations in the Beef Cow by : David Edwin Wildt
Download or read book The Effects of Gonadotropins in Inducing Multiple Ovulations in the Beef Cow written by David Edwin Wildt and published by . This book was released on 1973 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Hormonal Protocals for Synchronization of Ovulation and Timed Artificial Insemination in Dairy Heifers by : Humberto Rivera
Download or read book Development of Hormonal Protocals for Synchronization of Ovulation and Timed Artificial Insemination in Dairy Heifers written by Humberto Rivera and published by . This book was released on 2004 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Ovulatory Follicle Size on Steroidogenic Capacity, Molecular Markers of Oocyte Competence and Bovine Pregnancy Associated with Glycoproteins in Beef Cows by : Ky Garrett Pohler
Download or read book Effect of Ovulatory Follicle Size on Steroidogenic Capacity, Molecular Markers of Oocyte Competence and Bovine Pregnancy Associated with Glycoproteins in Beef Cows written by Ky Garrett Pohler and published by . This book was released on 2011 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial insemination (AI) and estrus synchronization (ES) are effective tools fo the genetic advancement of cattle. Gonadotropin-releasing hormone (GnRH) is used at the beginning of ES protocols to induce ovulation and start a new follicular wave, and(or) at the end of a protocol to induce ovulation in combination with insemination. However GnRH-induced ovulation of physiologically immature follicles negatively affected pregnancy rates in beef heifers and postpartum cows and increased late embryonic/early fetal loss. Mechanisms associated with reduced pregnancy rates and late embryonic/fetal survival are not clear, but may be due to inadequate oocyte competence and(or) a compromised uterine environment. Therefore, two studies were conducted to deterimine the effect of ovulatory follicle size on oocyte competence (experiment 1) and placental function (experiment 2-4). Based on the above experiments, ovulatory follicle diameter was positively associated with serum and intrafollicular estradiol; however, the relationship between ovulatory follicle size and markers of oocyte competence was not conclusive (experiment 1). Furthermore, there was no relationship between bovine pregnancy associated glycoproteins (bPAGs; marker of placental function) and ovulatory follicle size, stage of embryonic development, or embryo quality; however, cows that lost an embryo after d 28 of gestation had lower concentrations of bPAGs on d 28 compared to cows that maintained pregnancy (experiment 2-4).
Book Synopsis Response of Early Postpartum Dairy Cows to Administration of Gonadotropin Releasing Hormone (GnRH) by : Paul Michael Riek
Download or read book Response of Early Postpartum Dairy Cows to Administration of Gonadotropin Releasing Hormone (GnRH) written by Paul Michael Riek and published by . This book was released on 1982 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relationship Between Pituitary GnRH Binding Sites and Pituitary Release of Gonadotrophins in Beef Cows by : Kwanyee Leung
Download or read book Relationship Between Pituitary GnRH Binding Sites and Pituitary Release of Gonadotrophins in Beef Cows written by Kwanyee Leung and published by . This book was released on 1984 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Exogenous Gonadotropin Releasing Hormone on Recovery from Septic Uterine Conditions in Postpartum Dairy Cows by : Louise Cooper Holt
Download or read book Effect of Exogenous Gonadotropin Releasing Hormone on Recovery from Septic Uterine Conditions in Postpartum Dairy Cows written by Louise Cooper Holt and published by . This book was released on 1986 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Exogenous Progestins and Gonadotropin Releasing Hormone on Embryonic Survival in Beef Cattle by : Raymond N. Summers
Download or read book The Effect of Exogenous Progestins and Gonadotropin Releasing Hormone on Embryonic Survival in Beef Cattle written by Raymond N. Summers and published by . This book was released on 1999 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Using Gonadotropin-releasing Hormone (GnRH) to Improve Dairy Cattle Conception Rates in the Tropics by :
Download or read book Using Gonadotropin-releasing Hormone (GnRH) to Improve Dairy Cattle Conception Rates in the Tropics written by and published by . This book was released on 1989 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Factors Influencing Fertility in the Post-Partum Cow by : H. Karg
Download or read book Factors Influencing Fertility in the Post-Partum Cow written by H. Karg and published by Springer. This book was released on 1982-08-31 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Gonadotropin Releasing Hormone and Milk Production on Pregnancy Rates in Repeat Breeder Dairy Cows by : Laura Maureen Mitchell
Download or read book The Effects of Gonadotropin Releasing Hormone and Milk Production on Pregnancy Rates in Repeat Breeder Dairy Cows written by Laura Maureen Mitchell and published by . This book was released on 1988 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Using Gonadotropin Releasing Hormone (GhRH) to Improve Dairy Cattle Conception Rates in the Tropics by :
Download or read book Using Gonadotropin Releasing Hormone (GhRH) to Improve Dairy Cattle Conception Rates in the Tropics written by and published by . This book was released on 1989 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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