Investigations of Postpartum and Postweaning Factors that May Affect Subsequent Sow Reproductive Performance PDF Download
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Author: Bradley Aaron Belstra
Publisher:
ISBN:
Category :
Languages : en
Pages : 194
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Book Description
Keywords: Estrus, Insemination, Ovulation, Sow, Uterine Involution.
Author: Bradley Aaron Belstra
Publisher:
ISBN:
Category :
Languages : en
Pages : 194
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Book Description
Keywords: Estrus, Insemination, Ovulation, Sow, Uterine Involution.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Experiment one examined effects of season, parity, genotype, lactation length, and weaning-to-estrus interval on the postweaning duration of estrus (DE) and onset of estrus-to- ovulation interval (EOI) of sows in three farms. Farm x weaning-to-estrus interval, farm x season, and parity x season interactions for DE and EOI were detected. Weaning-to-estrus interval had an inverse relationship with DE and EOI on each farm, but the weaning-to-estrus interval range that exhibited a stepwise decrease of DE and EOI was narrower on farm 1 (3 to 5 days) than farms 2 and 3 (3 to 6 days). Both DE and EOI were 8 h longer in the summer than the spring on farms 1 and 3, but did not differ between seasons on farm 2. On each farm, parity e"3 sows had a 4.5 h longer DE and EOI than parity 1 and 2 sows in the summer, but there were no differences in DE or EOI among parity classes in the spring. Lactation length and genotype had small but significant effects on DE and EOI, respectively. Results of this experiment indicate that factors other than weaning-to-estrus interval, such as season and parity, can significantly alter DE and EOI. However, the effects of season and weaning- to-estrus interval on DE and EOI are apparently farm dependent. Experiment two characterized the urinary excretion of two markers of collagen degradation, hydroxylysyl pyridinoline (HP) and lysyl pyridinoline (LP), by sows during postpartum uterine involution. A postpartum increase of HP excretion occurred that was temporally consistent with the known pattern of uterine weight loss during involution. The mean molar ratio of HP:LP increased postpartum and confirmed that catabolism of a soft, non-bone tissue dominates this period. Experiment three investigated the use of transabdominal ultrasonography to estimate uterine size. The distance between the abdominal wall and intestines, which sandwich the uterus, decreased 8.7 cm from day 1 to 18 postpartum. Validation of these two techniques to monitor postpart.
Author: United States. Cooperative State Research Service. Current Research Information System
Publisher:
ISBN:
Category : Swine
Languages : en
Pages : 940
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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 804
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Author:
Publisher: Academic Press
ISBN: 0080535275
Category : Medical
Languages : en
Pages : 3269
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Book Description
The 3rd edition, the first new one in ten years, includes coverage of molecular levels of detail arising from the last decade's explosion of information at this level of organismic organization. There are 5 new Associate Editors and about 2/3 of the chapters have new authors. Chapters prepared by return authors are extensively revised. Several new chapters have been added on the topic of pregnancy, reflecting the vigorous investigation of this topic during the last decade.The information covered includes both human and experimental animals; basic principels are sought, and information at the organismic and molecular levels are presented.*The leading comprehensive work on the physiology of reproduction*Edited and authored by the world's leading scientists in the field*Is a synthesis of the molecular, cellular, and organismic levels of organization*Bibliogrpahics of chapters are extensive and cover all the relevant literature
Author: Ernst Knobil
Publisher: Gulf Professional Publishing
ISBN: 9780125154024
Category : Business & Economics
Languages : en
Pages : 1550
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Book Description
The 3rd edition, the first new one in ten years, includes coverage of molecular levels of detail arising from the last decade's explosion of information at this level of organismic organization. There are 5 new Associate Editors and about 2/3 of the chapters have new authors. Chapters prepared by return authors are extensively revised. Several new chapters have been added on the topic of pregnancy, reflecting the vigorous investigation of this topic during the last decade.The information covered includes both human and experimental animals; basic principels are sought, and information at the organismic and molecular levels are presented. *The leading comprehensive work on the physiology of reproduction*Edited and authored by the world's leading scientists in the field*Is a synthesis of the molecular, cellular, and organismic levels of organization*Bibliogrpahics of chapters are extensive and cover all the relevant literature
Author: Great Britain. Meat and Livestock Commission
Publisher:
ISBN:
Category :
Languages : en
Pages : 298
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Book Description
Author: Great Britain. Meat and Livestock Commission
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 530
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Book Description
Author: I. Gordon
Publisher: Elsevier
ISBN: 1483285693
Category : Technology & Engineering
Languages : en
Pages : 451
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Book Description
This textbook provides a detailed view of the different ways in which reproduction in cattle, sheep, pigs and horses can be controlled and manipulated. It is primarily of interest to students of animal science and veterinary medicine, but will also be of use to those who are concerned with the practical aspects of reproduction control, whether in an advisory capacity or in applying techniques on the farm itself. A major objective of the book is to draw attention to information which may be used directly to increase the efficiency of the livestock industry.
Author: G. R. Foxcroft
Publisher:
ISBN:
Category : Breeding
Languages : en
Pages : 296
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Book Description
