COMPARISON OF DIFFERENT PROCEDURES FOR LACTATION LENGTH ADJUSTMENT OF MILK YIELD IN SAHIWAL CATTLE [PDF]
Pakistan Veterinary Journal, 2004 The purpose of the present study was to compare three procedures for lactation length adjustment of milk yield. For this purpose, weekly milk yield records (n = 2039) of Sahiwal cows were used. Multiplicative adjustments using simple linear regression of
I. R. Bajwa, M. S. Khan, M. A. Khan1 and K. Z. Gondal2
doaj
Significance of breeding value indicators for prediction of milk yield [PDF]
Технологія виробництва і переробки продуктів тваринництва, 2022 A comparative assessment of the significance of various indicators of the breeding value of breeding bulls for predicting milk yield in the highly productive herd of the farm economy "Alfa" was carried out.
Shablia V. +4 more
doaj +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
Effect of farm system and milk urea phenotype on milk yield and milk composition of dairy cows in Canterbury [PDF]
, 2021 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
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. +12 more
core +1 more source
, 2023 The aim of this study was to evaluate the effect of rumination time, eating time and season on milk yield and on milk component content in the context of milk recording. The experiment was carried out with two breeds - Czech Fleckvieh cattle and Holstein
Radim Codl +5 more
core +1 more source
Accuracy of predicting milk yield from alternative milk recording schemes
, 2005 peer-reviewedThe effect of reducing the frequency of official milk recording and the number of recorded samples per test-day on the accuracy of predicting daily yield and cumulative 305-day yield was investigated.
Cromie, A. R. +17 more
core +1 more source
, 2023 Seasonal heat stress and metabolic disorders during mid-lactation are the main factors limiting production in Holstein cows, and several proteins and molecules involved in metabolic pathways are altered in response to stress.
Yongqiang Li +11 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
Rearing conditions and lifetime milk revenues in Swedish dairy cows [PDF]
, 2011 Associations between replacement heifer rearing conditions and lifetime milk revenues were studied throughout the productive life of Swedish dairy cows.
Svensson, Catarina, +8 more
core +1 more source