Risk factors involved in retained placenta of dairy cows from family agriculture herds
نویسندگان
چکیده
منابع مشابه
Risk factors for retained placenta and the effect of retained placenta on the occurrence of postpartum diseases and subsequent reproductive performance in dairy cows.
The objectives of this study were to determine the risk factors for retained placenta by evaluating several reproductive factors in individual cows, and to determine the effects of retained placenta on the occurrence of postpartum diseases and subsequent reproductive performance in dairy herds. The health status, cow parity, calving, and breeding dates were recorded from 805 calvings in nine da...
متن کاملLogistic Regression Analysis of Some Factors Influencing Incidence of Retained Placenta in a Holstein Dairy Herd
To investigate the effects of certain factors on the rate of retained placenta, 2844 calving records from 1288 Holstein cows in a herd were used. These cows calved during year period of 2001 to 2007. A generalized statistical linear model was applied to analyze the data. Logistic regression model was applied as the statistical model. In the model, fixed effects of year, season (warm or cold) an...
متن کاملRisk factors affecting the culling of Iranian Holstein dairy cows
This experiment was conducted to evaluate the association between risk factors and the risk of culling in Iranian Holstein cows. The data consisted of 329,772 lactation records obtained from the Animal Breeding Center of Iran (2003 - 2012) and logistic regression was applied to investigate the associations between the predictor and response variables. The response variable in this experiment wa...
متن کاملEffEcts of REtainEd PlacEnta on thE fERtility in tREatEd daiRy cows
GUNAY, Aytekin, Ulgen GUNAY, and Abdülkadir ORMAN, 2011. Effects of retained placenta on the fertility in treated dairy cows. Bulg. J. Agric. Sci., 17: 126-131 The objective of this study was to evaluate an effect of the retained placenta on reproductive performance of 222 multiparous cows. The animals with retained placenta (RP) were divided into three treatment groups (TI; n=65, TII; n=47, TI...
متن کاملRisk Assessment and Consequences of Retained Placenta for Uterine Health, Reproduction and Milk Yield in Dairy Cows
The objective of the study was to determine the value of metabolic indicators characterising the energy and acid-base metabolism of dairy cows for predicting the risk of retained placenta (RP). The connection between RP and different factors analysed, and the effect of RP on the development of puerperal metritis (PM) as well as on reproduction and milk production was studied. A total of 105 Hol...
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ژورنال
عنوان ژورنال: Brazilian Journal of Development
سال: 2019
ISSN: 2525-8761,2525-8761
DOI: 10.34117/bjdv5n10-114