Effect of Live Weight and Differing Economic Values on Responses to Selection for Milk Fat, Protein, Volume, and Live Weight [PDF]
Five traits of major economic importance in the New Zealand dairy industry are milk volume, milk fat, milk protein, live weight, and survival. This study evaluated the impact of live weight as a trait in the selection objectives for the New Zealand dairy industry.
Spelman, R.J., Garrick, D.J.
openaire +4 more sources
Live weight accounting for beef cow management [PDF]
Calculation and use of annual live weight production of a group of beef cattle, ie, net harvest of live weight from their grazing area over a year, which is a primary beef cattle business measure directly indicating income, is limited in practice because
McCosker, K. D. +3 more
core +1 more source
Predicting live birth, preterm and low birth weight infant after in-vitro fertilisation: a prospective study of 144018 treatment cycles [PDF]
Background The extent to which baseline couple characteristics affect the probability of live birth and adverse perinatal outcomes after assisted conception is unknown.
Nelson, SM +9 more
core +1 more source
A covariance function for feed intake, live weight and milk yield estimated using a random regression model [PDF]
To enable investigation of genetic variation during early lactation in heifers, multitrait covariance functions were used to describe genetic covariances among feed intake, live weight, and milk yield during the first 15 wk of lactation (n = 628). Random
Veerkamp, R. F., Thompson, R.
core +1 more source
Multi-trait covariance functions to estimate genetic correlations between milk yield, dry matter intake and live weight during lactation [PDF]
Energy balance is a function of dry-matter intake (DMI), live weight and milk yield over a certain time period. To investigate potential strategies to use genetic selection for the improvement of the negative energy balance, genetic co-variances were ...
Veerkamp, R. F., Thompson, R.
core +1 more source
Can live weight be used as a proxy for enteric methane emissions from pasture-fed sheep? [PDF]
To test the hypothesis that sheep live weight (LW) could be used to improve enteric methane (CH4) emission calculations, mature ewes of 4 different breeds representative of the UK sheep industry were studied: Welsh Mountain, Scottish Blackface, Welsh ...
Moorby JM +3 more
europepmc +3 more sources
Live animal measurements, carcass composition and plasma hormone and metabolite concentrations in male progeny of sires differing in genetic merit for beef production [PDF]
peer-reviewedIn genetic improvement programmes for beef cattle, the effect of selecting for a given trait or index on other economically important traits, or their predictors, must be quantified to ensure no deleterious consequential effects go unnoticed.
Evans, R. D. +5 more
core +1 more source
The estimation of live weight from body measurements in Yankasa sheep
Live body measurements of weight, height, length, girth, stifle- and hip-width and a measure of muscularity (ratio of stifle to hip width) were monitored on 258 Yankasa sheep stratified into age categories of 1 to over 3 years determined mostly from ...
R.A. Afolayan +2 more
doaj +1 more source
Live-weight variations of Tibetan sheep and yaks fed different diets during the experiment (mean±S.E.). [PDF]
Live-weight variations of Tibetan sheep and yaks fed different diets during the experiment (mean±S.E.).
Tianwei Xu (3617447) +7 more
core +1 more source
Effects of Transport on Live Weight and Behavior of Lambs
The study has monitored the effects of transport stress on some biochemical indicators of stress and behavior lambs at time of slaughter. The research was carried out in the cold season, on a number of 120 lambs, transported for 6h-16h, to be slaughtered.
Ioana Andronie +3 more
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