Oxender, W., and W.Adams. 1979.Problems associated withthecalving andneonatal period inbeefcattle. In:B.Hoffmann, I.L.Mason andJ.Schmidt (Ed.)Calving Problems andEarly Viability oftheCalf. Current Topics inVet.Med. andAnim. Sei.Vol.4.p408.MartinusNijhoff Publishers, TheHague....
Survey of the Incidence of Calving Problems, Calf Mortality, and their Economic Importance: Dairy and Dual-Purpose Cattle It describes first the results obtained from observations on calving in dual-purpose breeds made at the Institute of Animal Husbandry and Animal Behaviour ... D Smidt,FW Huth...
Behavioural predictors of the start of normal and dystocic calving in dairy cows and heifers The individual monitoring of dairy cows around the time of calving is important to identify calving difficulties or health problems as early as possible. T... HM Miedema,MS Cockram,CM Dwyer,... - ...
PAUL RAPNICKI, in Current Therapy in Large Animal Theriogenology (Second Edition), 2007 Calving Interval Although maintaining a short calving interval is the conceptual goal of reproductive management, the parameter itself is fraught with problems. As noted earlier, calculating an actual calving ...
Obstetrical problems and stillbirth in beef cattle calvingCharolaiscowsOut of 5970 calvings, 4.29% had an abnormal course (dystocia). The occurrence of stillbirths was 6.98% of all births and 4.15% of... J Citek,E Hradecka,V Rehout,... - 《Animal Science Papers & Reports》 被引量: 7发...
By implementing a real-time monitoring system, problems could be reduced by supporting farmers to detect the onset of parturition and to intervene in case of dystocia. The hypothesis of this study was that the onset of parturition is detectable through analyses of the movement pattern of the dam...
The average length of the calving interval (417 days in the primiparous and 423 in the multiparous group) as well as the average number of inseminations per conception (2,4 and 2,6) indicated that a milk yield above the level of 7000 kg resulted in some reproduction problems. Cows having...
Dairy herds in Møre and Romsdal County, Norway (regarded as initially free from the bovine virus diarrhoea virus (BVDV) infection) were studied retrospectively from 1992 to 1996. The herd reproductive performance (time to first calving, calving interval, and number of breeding services) was ...
Problems with subclinical mastitis typically become more prevalent for cows in later lactations (Heins and Hansen, 2012), so the lack of difference between the crossbred and HO cows during first lactation in the current study was not surprising. Calving Traits No difference was detected between ...
Dairy cattle production is distributed throughout the Brazilian regions. However, Brazilian producing regions are different in air temperature and humidity, diet, birth season, and other factors that may alter the reproductive performances of cows. The age of the cow at first calving (AFC) is a ...