Results 21 to 30 of about 166,282 (309)

Inter- and Intra-Individual Variation in the Behavior of Feed Intake on Nutrient Availability in Early Lactating Dairy Cows

Animals, 2021
Since energetic deficits in dairy cows can only be reduced at an animal level, the objective of the present study was to determine the extent of variation in intake behavior within and between animals during early lactation, to explore the magnitude of ...
Theresa Rumphorst, Theresa Scheu, Christian Koch, Albert Sundrum   +3 more
doaj   +1 more source

Feed conversion ratio, residual feed intake and cholecystokinin type A receptor gene polymorphisms are associated with feed intake and average daily gain in a Chinese local chicken population

Journal of Animal Science and Biotechnology, 2018
Background The feed conversion ratio (FCR) and residual feed intake (RFI) are common indexes in measuring feed efficiency for livestock. RFI is a feed intake adjusted for requirements for maintenance and production so these two traits are related ...
Zhenhua Yi, Xing Li, Wen Luo, Zhenqiang Xu, Congliang Ji, Yan Zhang, Qinghua Nie, Dexiang Zhang, Xiquan Zhang   +8 more
doaj   +1 more source

A covariance function for feed intake, live weight and milk yield estimated using a random regression model [PDF]

, 1999
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

Feed efficiency and surplus feed intake among Norwegian Red dairy cows

Journal of Dairy Science
: Feed in livestock production is a major cost driver and closely linked to GHG emissions from the sector. Hence, there is a great deal of interest to improve feed efficiency of livestock and promote economic and environmental sustainability of livestock
Daniel Muluwork Atsbeha, Alemayehu Kidane   +1 more
doaj   +1 more source

Increasing weaning age of piglets from 4 to 7 weeks reduces stress, increases post-weaning feed intake but does not improve intestinal functionality

, 2010
This study tested the hypothesis that late weaning and the availability of creep feed during the suckling period compared with early weaning, improves feed intake, decreases stress and improves the integrity of the intestinal tract.
Hoogendoorn, A., Dekker, R.A., Meulen, J., van der, Koopmans, S.J.   +3 more
core   +1 more source

Feed efficiency estimation from stochastic feed requirement frontier

Journal of Dairy Science
: Feed accounts for 40% to 70% of livestock production cost. Therefore, improving feed efficiency of production animals will promote farm profitability. To this end, precise estimation of animal level feed efficiency is important.
Daniel Muluwork Atsbeha
doaj   +1 more source

Short-Term Feeding Response in Chicks to Tea Saponin

The Journal of Poultry Science, 2001
Tea saponin is known to suppress chick growth rate by decreasing feed intake, although the mechanism by which tea saponin decreases feed intake remains obscure. Since tea saponin has bitter taste, palatability was suggested to be a major factor affecting
Hiroshi Ueda
doaj   +1 more source

Phenotypic association between feed efficiency and feeding behavior, growth and carcass traits in Senepol cattle

Revista Brasileira de Zootecnia
The objective of this study was to evaluate the associations between feed efficiency and feeding behavior, growth and carcass traits in Senepol cattle. A total of 137 animals were evaluated.
André Lasmar Guimarães, Maria Eugênia Zerlotti Mercadante, Roberta Carrilho Canesin, Renata Helena Branco, Maria Lucia Pereira Lima, Joslaine Noely dos Santos Gonçalves Cyrillo   +5 more
doaj   +1 more source

Effect of biochar or biochar and urea supplementation on feed intake, milk yield, feed conversion and methane production of dairy cows

, 2023
Feed additives belong to a number of climate change mitigation strategies being sought to reduce methane emissions in ruminants. In this study, the effect of biochar or biochar and urea supplementation on dairy cow performance and methane production was ...
Michael Mandl, Joseph Sweeney, Manuel Winter, Andreas Steinwidder, Georg Terler   +4 more
core   +1 more source

Wet Feeding Promotes Growth without Affecting Hypothalamic Peptide Gene Expression in Growing Broiler Chicks

The Journal of Poultry Science
From the perspective of animal welfare, freedom from hunger and thirst is an undeniable requirement for the poultry industry. Regulatory mechanisms underlying drinking behavior have not yet been identified in chickens; however, the regulation of ...
Tomoya Matsunami, Yuhui Zhang, Yuji Taniguchi, Sei-ichi Hinomoto, Takaoki Saneyasu, Hiroshi Kamisoyama, Kazuhisa Honda   +6 more
doaj   +1 more source