Results 31 to 40 of about 6,238 (254)
Survival analysis in a buffalo herd located in well drained savannas, Guárico State, Venezuela
Italian Journal of Animal Science, 2010 The main objective was to identify animal outlets and to estimate survival curves based on 1198 records of birth, mortality and sales from Hato Barrancas, located in well drained savannas, Guárico State, Venezuela. Chi square test was used to find
O. Colmenares +4 more
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Effects of breeding season length and calving season on range beef cow productivity
Journal of Animal Science, 1991 A 5-yr study was conducted beginning in 1983 with 460 cows to evaluate the effects of three breeding seasons (30, 45, and 70 d in length) and two times of spring calving, March (early) and April (late), on cattle production under Nebraska Sandhills range conditions.
Deutscher, Gene H. +2 more
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Journal of Agricultural Sciences, 2020 The variables affecting the milk productivity have been discussed in various articles through different methods. A recent study using path analysis shows that three variables significantly affect the 305-day milk yield of Holstein Friesian cows ...
Volkan Sevinç +3 more
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Review: Use of assisted reproduction in seasonal-calving dairy herds
animal, 2023 A unique aspect of seasonal-calving pasture-based systems of dairy production is the intense focus placed on achieving a concentrated herd-calving period in late winter and early spring. Hence, excellent reproductive performance is required during a short breeding period.
Stephen T. Butler +3 more
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Calving Seasonality Associated With Melt‐Undercutting and Lake Ice Cover [PDF]
Geophysical Research Letters, 2020 AbstractA detailed understanding of calving processes at the lacustrine margins of the Greenland ice sheet is necessary for accurately forecasting its dynamic response to ongoing climate change. However, existing data sets of lacustrine calving are limited to summer seasons and to alpine glaciers.
Mallalieu, J +3 more
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Аграрная наука Евро-Северо-ВостокаThe objective of this study was to identify the relationship between ambient temperature and the productivity, mineral, and antioxidant status of bull calves during the early period of postnatal ontogenesis.
O. A. Zavyalov, A. N. Frolov
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Effects of Non-Genetic Influential Factors on Service Period Length in Romanian Brown Breed
Scientific Papers Animal Science and Biotechnologies, 2023 The aim of the current research was to determine the influence of calving year, season of calving, lactation parity and calving ease on service period (SP) length in Romanian Brown breed.
Radu Ionel Neamţ
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Partum and postpartum characteristics on the postpartum rebreeding in beef cattle
Anais da Academia Brasileira de Ciências, 2018 The objective was to evaluate the influence of calving and postpartum characteristics, measured in different genetic predominance, on the postpartum rebreeding.
GUILHERME JONER +7 more
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Genetic evaluation of reproduction performance of Jersey × Red Sindhi crossbred cows [PDF]
Veterinary World, 2016 Aim: The present investigation was undertaken to study the reproduction performance and effect of non-genetic factors on reproduction performance of Jersey crossbred cows. Materials and Methods: Data on 355 Jersey crossbred cattle maintained at the Post-
S. Vinothraj +4 more
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SOME FACTORS AFFECTING MILK YIELD AND LACTATION LENGTH IN NILI RAVI BUFFALOES [PDF]
Pakistan Veterinary Journal, 2007 Effects of parity, lactation length, calving season, calf sex and service period on milk yield for 426 records in 134 Nili Ravi buffaloes maintained at the National Agricultural Research Center, Islamabad Pakistan during 1988-2004 were evaluted.
M. AFZAL, M. ANWAR AND M. A. MIRZA
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