Prenatal maternal effects on body condition score, female fertility, and milk yield of dairy cows [PDF]
, 2007 In this study, maternal effects were described as age of dam at first and second calving, first-lactation body condition score (BCS) of the dam during gestation, and milk yield of the dam.
Brotherstone, S. +5 more
core +1 more source
Dynamics of correlation coefficients of economic and productive characteristics depending on the age of cows [PDF]
E3S Web of Conferences, 2021 In 2002, a new Ural type of black-and-white breed was officially registered. Animals of this type have high productivity indicators, but at the same time there is a decrease in the productive longevity of the breeding stock.
Harlap S.Yu. +4 more
doaj +1 more source
Nature, 1953 IN the early stages the growth of the lamb is largely dependent on the milk yield of its dam. In hill sheep, where the environment constitutes the limiting factor to production, a study of the milking capacity of the ewe would seem to be of special interest, as it forms a large part of the lamb's environment at a most important period of growth.
openaire +2 more sources
Body condition score and live-weight effects on milk production in Irish Holstein-Friesian dairy cows [PDF]
, 2007 peer-reviewedThe objective of the present study was to quantify the relationships among body condition score (BCS; scale 1 to 5), live weight (WT) and milk production in Irish Holstein-Friesian spring calving dairy cows.
Buckley, Frank +2 more
core +1 more source
Animal, 2014 The aim of this study was to investigate the effect of including milk yield data in the international genetic evaluation of female fertility traits to reduce or eliminate a possible bias because of across-country selection for milk yield.
M.A. Nilforooshan +4 more
doaj +1 more source
Genome-wide associations for milk production and somatic cell score in Holstein-Friesian cattle in Ireland [PDF]
, 2012 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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ACCURACY OF MILK YIELD ESTIMATION IN DAIRY CATTLE FROM MONTHLY RECORD BY REGRESSION METHOD [PDF]
, 2009 This experiment was conducted to estimate the actual milk yield and to compare the estimation accuracy of cumulative monthly record to actual milk yield by regression method.
Johari, S +3 more
core +1 more source
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
Comparison of 2 types of milk flow meters for detecting bimodality in dairy cows
Journal of Dairy Science, 2023 : 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
doaj +1 more source
Modelling temperature effects on milk production : a study on Holstein cows at a Japanese farm [PDF]
, 2014 Milk yield and its composition vary according to individual cows as well as to a variety of different environment conditions, such as temperature.
Machiko Yano +5 more
core +1 more source