Milk yield variation in first three lactations and factors affecting milk yield in Sahiwal cattle
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Authors
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VED PRAKASH
Scientist, National Dairy Research Institute, Karnal, Haryana 132 001 India
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A K GUPTA
Principal Scientist, Dairy Cattle Breeding Division, National Dairy Research Institute, Karnal, Haryana 132 001 India
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ATUL GUPTA
Assistant Professor, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut
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R S GANDHI
ADG, (APB), ICAR, New Delhi
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ARUN KUMAR
Principal Scientist and Head (Animal Genetics and Breeding), ICAR-CSWRI, Avikanagar, Rajasthan
Keywords:
305-Day milk yield, Lactation, Non-genetic factors, Sahiwal, Test day milk yieldDownloads
References
Debbarma M, Gandhi R S, Raja T V, Singh A and Sachdeva G K. 2010. Influence of certain non-genetic factors on test day milk records in Sahiwal cattle. Indian Journal of Dairy Science 63 (6): 504–06.
Dongre V B. 2012. ‘Modeling lactation curve for sire evaluation in Sahiwal cattle.’ Ph.D. Thesis, NDRI, Karnal, India.
Gupta A. 2013. ‘Genetic evaluation of Sahiwal cattle using lactation curve models’. Ph.D. Thesis, NDRI (Deemed University), Karnal, Haryana, India.
Harvey W R. 1990. Mixed Model Least squares and Maximum Likelihood computer Program (LSMLMW). PC–1 version.
Kathiravan P, Sachdeva G K, Gandhi R S, Singh P K, Raja T V, Raja K N and Kumar S R. 2010. Effect of non-genetic factors and estimation of heritability of lifetime traits in Sahiwal cattle. Journal of Livestock Biodiversity 2 (1) 30–34.
Mundhe U T. 2012. ‘Part lactation records for Sahiwal cow evaluation.’ M.V.Sc. Thesis, NDRI, (Deemed University), Karnal, India.
Rehman Z U, Khan S M, Bhatti S A and Iqbal J. 2008. Factors affecting first lactation performance of Sahiwal cattle in Pakistan. Archiv Tierzucht Dummerstorf 51 (4): 305–17. DOI: https://doi.org/10.5194/aab-51-305-2008
Rehman Z and Khan M S. 2012. Environmental factors affecting performance traits of Sahiwal cattle in Pakistan. Pakistan Veterinary Journal 32 (2): 229–33.
Singh V K, Singh C V, Kumar D and Kumar A. 2005. Genetic evaluation of some economic traits in Sahiwal and its crossbreds. Indian Journal of Dairy Science 58: 206–10.
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