Modeling daily energy balance of dairy cows in the first three lactations [PDF]
, 2005 Daily energy balance was calculated for 111 Holstein cows in their first 3 lactations, based on combinations of smoothed preadjusted phenotypic records for milk yield, feed intake, live weight, and body condition score.
Banos, G +5 more
core +1 more source
ENVIRONMENTAL FACTORS AFFECTING MILK YIELD AND LACTATION LENGTH IN SAHIWAL CATTLE [PDF]
Pakistan Veterinary Journal, 2004 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
doaj
Milk composition of Holstein cows: a retrospective study
Ciência Rural, 2018 : Worldwide, milk analysis is an satisfactory measurement of milk quality on dairy farms. Milk composition is the base for payment systems, so knowledge of its characteristics at different periods is essential for modern dairy producer.
Carlos Bondan +5 more
doaj +1 more source
Genetic parameters for milk somatic cell score and relationships with production traits in primiparous dairy sheep [PDF]
, 2007 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
core +1 more source
Effect of suckler cow genotype on milk yield and pre-weaning calf performance [PDF]
, 2005 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
core +1 more source
Milk yield and modeling of lactation curves of Tnisian she-camel [PDF]
Emirates Journal of Food and Agriculture, 2016 Modeling the lactation curve is an important step for assessing the true milk potential of dairy animals. The present study aims to investigate the use of four different mathematical models (Wood, Cobby and Le Du,Cappio-Borlinoand and Dhanoa) to describe camel milk lactation curves, to estimate the potential of dairy she-camels and to identify ...
Jemmali, Borni +3 more
openaire +5 more sources
Associations between sole ulcer, white line disease and digital dermatitis and the milk yield of 1824 dairy cows on 30 dairy cow farms in England and Wales from February 2003–November 2004 [PDF]
, 2008 The milk yields of 1824 cows were used to investigate the effect of lesion-specific causes of lameness, based on farmer treatment and diagnosis of lame cows, on milk yield.
Wright, JL +15 more
core +1 more source
Journal of Dairy Science, 1958 Summary A correlation study was performed on "total," "among-lactations," and "among-cows-in-lactation" bases, with 139 lactation records from 93 Holstein cows and 57 lactation records from 34 Guernsey cows, to determine the effects of maximum initial milk yield and persistency of lactation on lactation milk production.
H.D. Lennon, J.P. Mixner
openaire +1 more source
, 2021 SNPs with suggestive interaction effects on first test-day milk yield (TMY), fat percentage (TFP), fat yield (TFY), protein percentage (TPP), protein yield (TPY) and somatic cell score (TSCS), and on lactation milk yield (LMY), lactation fat percentage ...
Tong Yin (3576917) +4 more
core +1 more source
PREDICTION OF LACTATION YIELD FROM LAST-RECORD DAY AND AVERAGE DAILY YIELD IN NILI-RAVI BUFFALOES [PDF]
Pakistan Veterinary Journal, 2005 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