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Author : Silvia Clara Hernández Velasco
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (874 download)
Download or read book Genetics of Litter Size and Prenatal Survival in Pigs written by Silvia Clara Hernández Velasco and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Silvia Clara Hernández Velasco
Publisher :
ISBN 13 :
Total Pages : 326 pages
Book Rating : 4.:/5 (827 download)
Download or read book Genetics of Litter Size and Prenatal Survival in Pigs written by Silvia Clara Hernández Velasco and published by . This book was released on 2012 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Female reproductive performance is a critical component of sustainable pig production systems. There is abundant evidence of genetic variation in these traits among pig breeds. The aims of this study were to identify quantitative trait loci (QTL) affecting reproductive traits and to identify and characterise positional candidate gene(s) underlying the QTL. A Large White - Meishan F2 population was scanned for QTL with effects on reproductive traits. This analysis revealed 13 putative QTLs on seven different chromosomes with effects on five different traits: ovulation rate (OR), teat number (TN), prenatal survival (PS), total born alive (TBA) and litter size (LS). QTL for PS and LS on chromosome 8 were fine mapped and Secreted Phosphoprotein 1 (SPP1) confirmed as a candidate gene. A genome-wide association study was performed on a diverse population of different breeds and crosses lines, for reproductive traits including LS, TBA, number of stillborn piglets, and number of mummified piglets. Fourteen SNPs were found significantly associated with reproductive traits. The functional study of SPP1 examined the hypothesis that differences in foetal growth may be associated with the effectiveness of conceptus attachment, as measured by SPP1 expression. Patterns of SPP1 mRNA and protein expression in placental and uterine tissues supplying the smallest and a normal-sized foetus from the same uterus were examined in Large White-Landrace (LW-LR), Large White (LW) and Meishan (MS) females 40 and 45 of pregnancy. The smallest LW-LR foetuses tended to have a higher level of SPP1 mRNA in endometrium tissue compared to the normal-sized foetuses. However, placenta expression was higher in the normal-sized foetuses compared to the smallest ones. SPP1 protein levels in normal sized foetuses were significantly higher than in the smallest litter mates for all the tissues. Significantly higher levels of SPP1 mRNA and protein were found in MS compared to LW. In both breeds, significant differences between sizes were found in some tissues, with similar expression patterns in respect to size, for both mRNA and protein in endometrial tissues when compared to contemporary LW. In placenta, the direction of the expression differed between breeds, with a higher expression of mRNA and protein in the normal-sized MS foetuses and in the smallest sized LW foetuses. The comparison of SPP1 expression between different foetal sizes and different breeds revealed associations between breed, foetal size, and SPP1 protein, factors implicated in PS and LS. These results together with the genetic evidence indicate that the potential role of SPP1 in placental and foetal development merits further investigation.
Author : Commonwealth Bureau of Animal Health
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (63 download)
Download or read book Prenatal Survival in Pigs - Pt.1 - Ovulation Rate and Its Influence on Prenatal Survival and Litter Size in Pigs written by Commonwealth Bureau of Animal Health and published by . This book was released on 1971 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Anthony Earl Wrathall
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.E/5 ( download)
Download or read book Prenatal Survival in Pigs: Ovulation rate and its influence on prenatal survival and litter size in pigs, by A. E. Wrathall written by Anthony Earl Wrathall and published by . This book was released on 1971 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A E. Wrathall
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)
Download or read book Ovulation rate and its influence on prenatal survival and litter size in pigs written by A E. Wrathall and published by . This book was released on 1970 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Louis Nelson Baker
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (89 download)
Download or read book Parental Effects on Litter Size and Fetal Development in Swine written by Louis Nelson Baker and published by . This book was released on 1954 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A.E. Wrathall
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (79 download)
Download or read book Prenatal Survival in Pigs. Part 1 written by A.E. Wrathall and published by . This book was released on 1971 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Factors affecting ovulation rate; Intrisinc factors; Age; Body Weight; Breed; Inbreeding and crossbreeding; Extrinsic factors; Seasons and climate; Nutrition; Exogenous hormones; The influence of ovulation rate on prenatal survival; Fertilization rate; Conception rate and whole litter losses; Survival rate in early gestation - embryonic stage; Survival rate in later gestation - foetal stage; Survival rate at parturition.
Author : Birgitte Theodorus Theresia Maria Rens
Publisher :
ISBN 13 : 9789058084323
Total Pages : 210 pages
Book Rating : 4.0/5 (843 download)
Download or read book Physiological Aspects of Two Candidate Genes for Litter Size in Pigs written by Birgitte Theodorus Theresia Maria Rens and published by . This book was released on 2001 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chantal Farmer
Publisher : BRILL
ISBN 13 : 9086868037
Total Pages : 452 pages
Book Rating : 4.0/5 (868 download)
Download or read book The gestating and lactating sow written by Chantal Farmer and published by BRILL. This book was released on 2023-09-04 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last book on the lactating sow was published over 15 years ago. This new book brings us up to date in current knowledge on the gestating and lactating sow. It covers new and important topics such as conditioning of gilts for optimal reproductive performance, feeding high fibre diets to gestating sows and providing various fat sources in gestation and lactation. It also describes the several key success factors to group-housing systems in gestation, which is a must due to the current move towards group-housing. The new concept of transition feeding for sows is discussed, as well as the factors involved in mammary development of gilts and sows, both of which are instrumental for maximum colostrum and/or milk yields. The impact of the human-animal interactions on sow welfare and performance is discussed with focus on new handling practices that could be developed to overbalance the negative interactions inherent to pig management systems. Updates on must-have topics, such as amino acid and energy requirements of sows, colostrum and milk yield and composition, and sow health are also provided. The subjects covered in this book will assist animal scientists, nutritionists, veterinarians and swine producers in learning the most recent information on relevant and current topics affecting sow production, and in knowing which areas are in need of further research efforts.
Author : Max Frederick Rothschild
Publisher : CABI
ISBN 13 : 1845937562
Total Pages : 525 pages
Book Rating : 4.8/5 (459 download)
Download or read book The Genetics of the Pig written by Max Frederick Rothschild and published by CABI. This book was released on 2011 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: The understanding of pig genetics and genomics has advanced significantly in recent years, creating fresh insights into biological processes. This comprehensive reference work discusses pig genetics and its integration with livestock management and production technology to improve performance. Fully updated throughout to reflect advances in the subject, this new edition also includes new information on genetic aspects of domestication, colour variation, genomics and pig breeds, with contributions from international experts active in the field.
Author : Zsuzsanna Bosze
Publisher : Springer Science & Business Media
ISBN 13 : 0387740872
Total Pages : 492 pages
Book Rating : 4.3/5 (877 download)
Download or read book Bioactive Components of Milk written by Zsuzsanna Bosze and published by Springer Science & Business Media. This book was released on 2007-12-26 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dairy foods have huge potential concerning functional foods. Therefore, there is a tremendous amount of interest in value-added milk products and the identification of components in food which have health benefits. This book provides an overview of these derived components and their diverse activities including: the stimulation of beneficial microflora, alerting the immune system to the presence of potential pathogens and allergens, binding and eliminating toxins, etc.
Author : Luca Fontanesi
Publisher : CABI
ISBN 13 : 1780643349
Total Pages : 361 pages
Book Rating : 4.7/5 (86 download)
Download or read book The Genetics and Genomics of the Rabbit written by Luca Fontanesi and published by CABI. This book was released on 2021-06-15 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rabbits have many uses - as well as being cherished pets, they are bred for their meat and fur, and as laboratory animals. Understanding their genetics and genomics is key to their production and, equally, to their care, welfare and health. Beginning with an introduction to the rabbit, including key information on their evolution, domestication and breed types, this book then concentrates on the genetics and genomics of this valuable animal. Concluding with practical applications such as creating transgenic and genome edited rabbits, biotechnical applications and the rabbit as a biomedical model, this book brings this important topic fully up-to-date. It provides an indispensable resource for animal and veterinary researchers and students, as well as rabbit breeders and laboratory scientists.
Author : John F. Patience
Publisher : Springer Science & Business Media
ISBN 13 : 9086867561
Total Pages : 264 pages
Book Rating : 4.0/5 (868 download)
Download or read book Feed efficiency in swine written by John F. Patience and published by Springer Science & Business Media. This book was released on 2012-10-15 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'Feed efficiency in swine' has been prepared as a comprehensive treatise on the current state of our understanding of this topic which is so important to the pork industry. Each chapter is written by international authorities who understand both the science and application of their topic area. The book provides detailed insight into the many factors affecting feed efficiency, ranging from diet processing to herd health, from nutrition to physiology and from day-to-day barn management to the adoption of advanced technologies. The authors explain such practical aspects as the challenge of interpreting feed efficiency information obtained on farm or the role of liquid feeding. The authors also delve into more scientific topics such as amino acid or energy metabolism or animal physiology. This book is written for people who have a technical interest in pork production, including nutritionists, geneticists, farm management specialists, veterinarians, other academics and, of course, pork producers.
Author : Susanne Hermesch
Publisher :
ISBN 13 : 9781921597862
Total Pages : pages
Book Rating : 4.5/5 (978 download)
Download or read book Breeding Focus 2021 - Improving Reproduction written by Susanne Hermesch and published by . This book was released on 2021-05-05 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Breeding Focus 2021 - Improving reproduction" is the fourth workshop in the series. The Breeding Focus series was developed to provide an opportunity for exchange between industry and research across a number of agricultural industry sectors. Reproduction is a main economic driver for profitability and genetic gain. Successful reproduction is a complex characteristic comprising the formation of reproductive cells, successful mating and fertilisation, embryonic and fetal growth and eventually a successful birthing event. In livestock species, reproduction traits have mostly low heritabilities, which makes it challenging to improve reproduction as part of a multiple trait breeding objective. The complexity arises not just from the cascade of processes required to result in successful reproduction, but the relevant traits are different in males and females and they are influenced through health and fitness, nutrition, climate and other environmental and management factors.
Author : Laurie Piper
Publisher : Cabi
ISBN 13 :
Total Pages : 634 pages
Book Rating : 4.F/5 ( download)
Download or read book The Genetics of Sheep written by Laurie Piper and published by Cabi. This book was released on 1997 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systematics and phylogeny of the sheep;Genetic aspects of domestication, common breeds and their origin; Genetics of colour and hair texture; Genetics of morphological traits and inherited disorders; Biochemical genetics; Molecular genetics of sheep; Molecular genetics of immune molecules; Genetics of disease resistance and vaccine response; Molecular biology and genetics of scrapie in sheep; Cytogenetics: physical chromosome maps; The sheep linkage map; Genetics of behaviour; Biology and genetics of reproduction; Modern reproduction technologies and transgenics; Developmental genetics; Genetic resources and conservation; Genetic improvement of wool production; Genetics of meat quality; Genetics of milk production; Genetic improvement of sheep; Standardized genetic nomenclature for sheep.
Author : Chantal Farmer
Publisher : Brill Wageningen Academic
ISBN 13 : 9789086863433
Total Pages : 0 pages
Book Rating : 4.8/5 (634 download)
Download or read book The Suckling and Weaned Piglet written by Chantal Farmer and published by Brill Wageningen Academic. This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last books discussing the neonatal or weaned pig were published over 15 years ago. This new book provides up to date information on the suckling and weaned piglet. It covers novel and important topics such as microbiota development in piglets and management of hyperprolific litters. It also discusses topics such as weaning age and its long term influence on piglet heath and performance. The developments of lean and fat tissues and of the intestinal immune system in young pigs are described in detail. Emphasis is put on well-being with chapters focussing on husbandry interventions in suckling piglets as well as consequences of the lactational environment on behavioural disturbances of pigs after weaning. The multiple stressors encountered at and post-weaning are also discussed. Updates on essential subjects such as neonatal mortality, creep feeding of suckling piglets, feeding strategies for weaned pigs, housing systems post-weaning and diseases of piglets are provided. The information covered in this book should be of great assistance to animal scientists, nutritionists, veterinarians and swine producers. They will be made aware of most recent knowledge that will assist in improving the performance and welfare of suckling and weaned piglets.
Author : Institute of Medicine
Publisher : National Academies Press
ISBN 13 : 0309132975
Total Pages : 287 pages
Book Rating : 4.3/5 (91 download)
Download or read book Exploring the Biological Contributions to Human Health written by Institute of Medicine and published by National Academies Press. This book was released on 2001-07-02 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: It's obvious why only men develop prostate cancer and why only women get ovarian cancer. But it is not obvious why women are more likely to recover language ability after a stroke than men or why women are more apt to develop autoimmune diseases such as lupus. Sex differences in health throughout the lifespan have been documented. Exploring the Biological Contributions to Human Health begins to snap the pieces of the puzzle into place so that this knowledge can be used to improve health for both sexes. From behavior and cognition to metabolism and response to chemicals and infectious organisms, this book explores the health impact of sex (being male or female, according to reproductive organs and chromosomes) and gender (one's sense of self as male or female in society). Exploring the Biological Contributions to Human Health discusses basic biochemical differences in the cells of males and females and health variability between the sexes from conception throughout life. The book identifies key research needs and opportunities and addresses barriers to research. Exploring the Biological Contributions to Human Health will be important to health policy makers, basic, applied, and clinical researchers, educators, providers, and journalists-while being very accessible to interested lay readers.
