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These data were analyzed to determine the heritability and the variance of the length of the gestation period, so as to indicate the possibility of shortening the duration of pregnancy in dairy cattle. A comparison of the fiducial limits of the duration of pregnancy of each of the five breeds...
The effect of gestation stage on daily milk production and composition was investigated using first lactation weekly test day records of 325 Holstein Friesian cows in one herd. Gestation stage had a significant effect (P < 0.05) on all traits, accounting for 1.38 to 1.69% reduction in total su...
The insulin-like growth factor (IGF-I) and growth hormone (GH) genes have been identified as major regulators of milk yield and composition, and reproductive performance in cattle. Genetic variations/polymorphism in these genes have been found to influen
TRIENNIAL LACTATION SYMPOSIUM/BOLFA: Late gestation heat stress of dairy cattle programs dam and daughter milk productiondoi:10.2527/jas2017.2006dairy cattledevelopmental programmingheat stressAnticipated increases in the world population to 9 billion people will lead to increased demand for food. Dairy ...
Factors affecting gestation length in dairy cattle. Theriogenolgy. 15:552-559.Foote, R.H. Factors affecting gestation length in dairy cattle. Theriogenology 15: 553-559 (1981).Foote, R. H. 1981. Factors affecting gestation lengthin in dairy cattle. TTheriogenology 6:553....
For the remaining dairy cattle breeds the value was 298 days. For cows with gestation length exceeding these limiting values, parentage control would be advisable.doi:10.1515/bile-2015-0004Sobek ZbigniewNienartowicz-Zdrojewska AnnaRó?ańska-Zawieja Jolanta...
dairy cattlesubsequent reproductive performancelate gestationgrass silagesThe transition period of the dairy cow is physiologically and nutritionally stressful as feed intake is reduced hilt nutrient demand for the support of foetal growth and initiation of milk synthesis are increased. Also during this ...
und R. W. TOUCHBERRY (1974 a): Birth Weight and Gestation Period in Purebred and Crossbred Dairy Cattle, J. Dairy Sci. 57, 323-327Batra, T. R., and R. W. Touchberry. 1974. Birth weight and gestation period in purebred and crossbred dairy cattle. J. Dairy Sci. 57:323-327....
M. (1952). Factors associated with the dura- tion of gestation in dairy cattle. J. Dairy Sci. 35, 179-194.Factors associated with the duration of gestation in dairy cattle. J. Dairy. Sci., Savoy, Illinois, USA, 35 (1952),Factors associated with the duration of gestation in dairy ...