Effects of host genetics and environmental conditions on fecal microbiota composition of pigs. [PDF]
PLoS ONE, 2018 Since microbiota may influence the physiology of its host including body weight increase, growth rate or feed intake, in this study we determined the microbiota composition in high or low residual feed intake (HRFI and LRFI) pig lines, of different age ...
Tereza Kubasova +6 more
doaj +1 more source
Residual Feed Intake and Rumen Metabolism in Growing Pelibuey Sheep [PDF]
Animals, 2022 This study was carried out to evaluate the residual feed intake (RFI), volatile fatty acid (VFA) production and enteric methane (CH4) from growing Pelibuey sheep. In this case, 12 non-castrated Pelibuey with an initial average live weight (LW) of 21.17 ± 3.87 kg and an age of 3 months, were housed in individual pens and fed a basal diet with 16% of ...
Carlos Arce-Recinos +9 more
openaire +3 more sources
Methane emissions from dairy heifers as affected by residual feed intake and breed : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Animal Science at Massey University, Manawatū, New Zealand [PDF]
, 2018 Figures 2.5, 2.6, 2.7, 2.8, 2.9, 3.1, 3.2 & 3.3 have been removed for copyright reasons, but may be accessed via their sources listed in the References.
Flay, Holly Ellissa
core +1 more source
Quantitative analysis of ruminal methanogenic microbial populations in beef cattle divergent in phenotypic residual feed intake (RFI) offered contrasting diets [PDF]
, 2014 peer-reviewedBackground Methane (CH4) emissions in cattle are an undesirable end product of rumen methanogenic fermentative activity as they are associated not only with negative environmental impacts but also with reduced host feed ...
Carberry, Ciara A +3 more
core +6 more sources
Full-lactation performance of multiparous dairy cows with differing residual feed intake.
PLoS ONE, 2022 Residual feed intake (RFI) is an efficiency trait underpinning profitability and environmental sustainability in dairy production. This study compared performance during a complete lactation of 36 multiparous dairy cows divided into three equal-sized ...
Johanna Karlsson +3 more
doaj +1 more source
Relationship Between Feed Efficiency Measures During the Heifer Development Stage and Measures Taken During First Lactation in Purebred Angus—Final Report (Report to the American Angus Association, St. Joseph, MO) [PDF]
, 2012 Angus first-calf heifers were evaluated for feed intake utilizing the Feed Intake Monitoring System developed at ISU. Average dry matter intake for the feeding period was 3877 pounds with difference in dry matter intakes from the lowest to the ...
Dahlke, Garland R., Strohbehn, Daryl R.
core +2 more sources
Phenotypic and Genetic Correlations of Feed Efficiency Traits with Growth and Carcass Traits in Nellore Cattle Selected for Postweaning Weight. [PDF]
PLoS ONE, 2016 This study evaluated phenotypic (rph) and genetic correlations (rg) between 8 feed efficiency traits and other traits of economic interest including weight at selection (WS), loin-eye area (LEA), backfat thickness (BF), and rump fat thickness (RF) in ...
Thais Matos Ceacero +5 more
doaj +1 more source
Inter-relationships among alternative definitions of feed efficiency in grazing lactating dairy cows [PDF]
, 2015 peer-reviewedInternational interest in feed efficiency, and in particular energy intake and residual energy intake (REI), is intensifying due to a greater global demand for animal-derived protein and energy sources. Feed efficiency is a trait of economic
Berry, Donagh +7 more
core +1 more source
Heritability and genetic correlations of feed intake, body weight gain, residual gain, and residual feed intake of beef cattle as heifers and cows [PDF]
Journal of Animal Science, 2020 Abstract The cow herd consumes approximately 70% of the annual feed resources. To date, most genetic evaluations of feed intake in beef cattle have been made in growing animals and little information is available for mature cows.
Warren M Snelling +3 more
openaire +2 more sources
Genetic parameters for performance, feed efficiency, and carcass traits in Senepol heifers
Animal, 2021 Improving feed efficiency is a key breeding goal in the beef cattle industry. In this study, we estimated the genetic parameters for feed efficiency and carcass traits in Senepol cattle raised in tropical regions.
L.C. Novo +8 more
doaj +1 more source