Interrelationships between production and reproductive diseases in Holstein cows. Data.
Hollis N. Erb,S.W. Martin +1 more
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The distribution of calving ages suggested that the annual herd turnover was 20 to 25%.About:
This article is published in Journal of Dairy Science.The article was published on 1980-11-01 and is currently open access. It has received 136 citations till now. The article focuses on the topics: Metritis & Retained placenta.read more
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Defining and diagnosing postpartum clinical endometritis and its impact on reproductive performance in dairy cows.
Stephen J. LeBlanc,Todd F. Duffield,Ken E. Leslie,K G Bateman,Greg Keefe,J.S. Walton,Walter H. Johnson +6 more
TL;DR: Testing for diagnostic criteria for clinical endometritis in postpartum dairy cows found no diagnostic criteria based on palpation of the uterus had predictive value for time to pregnancy, and survival analysis was used to derive a case definition of endomet arthritis based on factors associated with increased time toregnancy.
Journal ArticleDOI
Prevalence of endometritis and its effects on reproductive performance of dairy cows
TL;DR: Endometritis diagnosed by endometrial cytology late in the voluntary waiting period was highly prevalent and exerted a profoundly detrimental effect on subsequent reproductive performance, making this condition potentially extremely costly to the North American dairy industry.
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Risk factors for post partum ovarian dysfunction in high producing dairy cows in Belgium: a field study.
TL;DR: An epidemiological study of risk factors for postpartal ovarian disturbances was carried out on 334 high-yielding dairy cows in 6 well-managed Belgian herds and attention was focused on abnormal cyclicity during the preservice, postpartum period.
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Path analysis of dry period nutrition, postpartum metabolic and reproductive disorders, and mastitis in Holstein cows.
TL;DR: The study suggests that feeding higher intakes of protein and energy in the last 3 week of the dry period may reduce the incidence of metabolic and reproductive disorders.
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Effect of disease on reproduction in the dairy cow: a meta-analysis
TL;DR: Effects on reproduction of dystocia, stillbirth, abortion, milk fever, retained placenta, metritis, cystic ovaries, anestrus, ketosis, displaced abomasum, locomotor disorders, and mastitis were reviewed.
References
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Variations in Removal Reasons and Culling Rates with Age for Dairy Females
TL;DR: Relative variability of means of herd and bull progenies indicated removal due either to mastitis or disease as mostly involuntary compared with general health or production which was mostly voluntary; therefore, culling rates at younger ages will be more useful for bull evaluation than culling rate at older ages or length of herdlife.
Journal ArticleDOI
Interrelationships between production and reproductive diseases in Holstein cows. Age and seasonal patterns.
Hollis N. Erb,S.W. Martin +1 more
TL;DR: Influences of age and season on occurrence of dystocia, retained placenta, metritis, cystic follicle, and luteal cyst were studied retrospectively in Holstein cows from 20 commercial herds that participated in the dairy herd health program of the Ontario Veterinary College.
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Chronic mesenteric volvulus in a dog.
TL;DR: A chronic, partial mesenteric volvulus was found on laparotomy of an adult Bernese mountain dog with a 4-month history of intermittent vomiting, diarrhea, and weight loss, and the dog recovered fully following reduction of the volVulus.
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Rate, Age, and Criteria for Disposal in a Herd of Registered Jersey Cattle
TL;DR: Reasons for disposal of dairy cattle from a registered Jersey herd established in 1887, noted for high production, on supervised herd test since 1929, and classified annually since 1938, were analyzed for the period, 1948 to October, 1963.
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Disease, production and culling in Holstein-Friesian cows: IV. Effects of disease on production
Ian R. Dohoo,S. Wayne Martin +1 more
Disease, production and culling in Holstein-Friesian cows III. Disease and production as determinants of disease
Ian R. Dohoo,S. Wayne Martin +1 more