Comparison of 2 types of milk flow meters for detecting bimodality in dairy cows
: The primary objective of this observational study was to investigate whether incremental milk flow rates (in the 0–15 s, 15–30 s, 30–60 s, and 60–120 s intervals) from electronic on-farm milk flow meters can be used to detect bimodal milk flow curves ...
M. Wieland, Anja Sipka
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Genome-wide associations for milk production and somatic cell score in Holstein-Friesian cattle in Ireland [PDF]
peer-reviewedBackground: Contemporary dairy breeding goals have broadened to include, along with milk production traits, a number of non-production-related traits in an effort to improve the overall functionality of the dairy cow.
David J Lynn +20 more
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PREDICTION OF LACTATION YIELD FROM LAST-RECORD DAY AND AVERAGE DAILY YIELD IN NILI-RAVI BUFFALOES [PDF]
Different adjustment procedures were compared to determine if prediction of lactation milk yield using last record day information could be improved by using information on the average daily milk yield of the recorded lactation. Weekly milk yield records
M. S. Khan, A. U. Hyder, I. R. Bajwa, M. S. Rehman and F. Hassan
doaj
Effect of suckler cow genotype on milk yield and pre-weaning calf performance [PDF]
peer-reviewedMilk yield and pre-weaning calf performance of spring-calving Charolais (C) and Beef × Holstein-Friesian (BF) cows was compared over 3 experiments.
Caffrey, Patrick J. +2 more
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ENVIRONMENTAL FACTORS AFFECTING MILK YIELD AND LACTATION LENGTH IN SAHIWAL CATTLE [PDF]
Weekly milk yield records on 661 Sahiwal cows calving during 1990-2000 at the Livestock Experiment Station Bahadurnagar, Okara were used to study how milk yield and lactation length were affected by different environmental factors.
I.R. Bajwa, M. S. Khan, M. A. Khan1 and K. Z. Gondal2
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Effect of farm system and milk urea phenotype on milk yield and milk composition of dairy cows in Canterbury [PDF]
To investigate the effect of farm system, and cow selection for milk urea nitrogen (MUN), on milk yield and milk composition, a farmlet study was carried out between October 2018 and May 2019 in Lincoln, Canterbury. A farm system with a low stocking rate
Robic, Y +6 more
core
Study on the loss of accuracy of AC-method for milk yield control in sheep [PDF]
. The aim of this study was to investigate the loss of accuracy of AC-method for milk yield control in sheep under the conditions of threefold milking per day. Test day milk yield records of 113 ewes raised on sheep farm of the Agricultural University in
D. Dimov, P. Zhelyazkova, A. Vuchkov
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Milk yield varies during lactation, following what is termed a lactation curve. ŽIŽLAVSKÝ and MIKŠÍK (1988) recorded changes in milk yield within a day, too. TEPLÝ et al. (1979) a KOUŘIMSKÁ et al. (2007) published variation within a day ± 1.10 kg in milk
Martin Skýpala, Gustav Chládek
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Genetic parameters for milk somatic cell score and relationships with production traits in primiparous dairy sheep [PDF]
A total of 13,066 first-lactation test-day records of 2,277 Valle del Belice ewes from 17 flocks were used to estimate genetic parameters for somatic cell scores (SCS) and milk production traits, using a repeatability test-day animal model.
van Kaam, J. B. C. H. M. +11 more
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PHENOTYPIC AND GENETIC CORRELATIONS BETWEEN FIRST LACTATION MILK YIELD AND SOME PERFORMANCE TRAITS IN SAHIWAL CATTLE [PDF]
Data on 8948 pedigree, breeding and performance records of a purebred herd of Sahiwal cattle maintained at the Livestock Experiment Station Jahangirabad district Khanewal (Pakistan) during the period 1939-98 were analysed.
K. Javed, M. Abdullah1 , M. Akhtar2 and M. Afzal3
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