Results 41 to 50 of about 1,953,806 (106)
Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 2002 Heritabilities, repeatabilities and genetic and phenotypic correlations among milk yield, fat yield and fat percentage were estimated using an animal model and 20,140 records of 11,618 Holstein-Friesian cows enrolled in the Moroccan official milk ...
I. Boujenane
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A Forage Allowance by Forage Type Interaction Impacts the Daily Milk Yield of Early Lactation Dairy Cows [PDF]
, 2023 We tested for a forage allowance effect on the milk yield of early lactation dairy cow herds grazing swards sown with perennial ryegrass (Lolium perenne L.), white clover (Trifolium repens L.) and plantain (Plantago lanceolata L.) relative to perennial ...
Keith G. Pembleton +11 more
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Pakistan Veterinary Journal, 2002 Data on production performance of 90 imported Dutch Holstein-Friesian cattle and their 127 Pakistani- born progeny from 1982 to 1991 were analyzed. The mean first lactation 305-day milk yield for imported and Pakistani-born cows was 3196.7 ± 66.36 and ...
Asad Ullah Hyder and Samee Ullah1
doaj
Effects of pregnancy on daily milk yield of Holstein-Friesian dairy cattle
, 2004 First, second and third lactation curves of 21,885 first lactation dairy cows were allowed to vary depending on the months in milk at which the cow became pregnant. The curves were modelled using a 4th degree polynomial of days in milk. In the models for
Brotherstone, S. +3 more
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Characterization of milk fatty acids based on genetic and herd parameters [PDF]
, 2012 The objective of this study was to characterize the fatty acids (FA) in milk based on genetic and herd parameters to investigate the origin of the different FA in milk.
Bovenhuis, H. +4 more
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Veterinary World, 2010 The present investigation was undertaken on data of 30 Sahiwal cattle and 30 crossbred cattle (HF × Jersey × Sahiwal) from Instructional Dairy Farm (IDF), G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand.
Anjan Dandapat +2 more
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Journal of Dairy Science: Arginine is one of the most versatile among the AA because of its important role in multiple functions of the body. However, the effect of Arg supplementation on lactational performance in dairy cows, and the associated influencing factors, have not ...
Xiuli Li +6 more
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Italian Journal of Animal Science, 2017 The aim of study was to determine the effect of pre-calving body condition score (BCS) and previous milk yield on BCS change, blood metabolites, oxidative stress and milk production in Holstein cows.
Negin Jamali Emam Gheise +4 more
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Impact of single nucleotide polymorphisms in leptin, leptin receptor, growth hormone receptor, and diacylglycerol acyltransferase (DGAT1) gene loci on milk production, feed, and body energy traits of UK dairy cows [PDF]
, 2008 The impact of 9 single nucleotide polymorphisms (SNP) in the leptin (LEP), leptin receptor (LEPR), growth hormone receptor (GHR), and diacylglycerol acyltransferase (DGAT1) gene loci on daily milk production, feed intake, and feed conversion, and weekly ...
Woodward, B. W. +4 more
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Genetic evaluation of fertility using direct and correlated traits [PDF]
, 2003 Poor fertility has become a major reason for involuntary culling of dairy cows in the United Kingdom. Calving interval (CI) and body condition score (BCS) are recorded, heritable, genetically correlated with each other, and could be used to extend the ...
Coffey, M.P. +14 more
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