Results 1 to 10 of about 19,345 (263)
Review: divergent selection for residual feed intake in the growing pig [PDF]
Animal, 2017 This review summarizes the results from the INRA (Institut National de la Recherche Agronomique) divergent selection experiment on residual feed intake (RFI) in growing Large White pigs during nine generations of selection.
H. Gilbert +20 more
doaj +7 more sources
Residual feed intake in beef cattle [PDF]
Revista Brasileira de Zootecnia, 2008 Providing feed is a major input cost in beef production, hence improvements in the efficiency of feed utilisation will reduce the cost of production. Residual feed intake (RFI) is a measure of feed efficiency, and is defined as the difference between an ...
J P.F. Arthur, R.M. Herd
doaj +4 more sources
New residual feed intake criterion for longitudinal data [PDF]
Genetics Selection Evolution, 2021 Background Residual feed intake (RFI) is one measure of feed efficiency, which is usually obtained by multiple regression of feed intake (FI) on measures of production, body weight gain and tissue composition.
Ingrid David +2 more
doaj +5 more sources
Dissection of Koch's residual feed intake: Implications for selection
Poultry Science, 2013 For 50 yr, residual feed intake (RFI) has remained a black box even though many researchers have touted it as a more biological estimate of efficiency of feed utilization than feed conversion ratio (FCR). We successfully dissected the efficiency of feed utilization by decomposing the components of RFI and ascertained the contributions of its components.
Samuel E Aggrey, Romdhane Rekaya
exaly +3 more sources
Temperament and performance of Nellore bulls classified for residual feed intake in a feedlot system [PDF]
Anais da Academia Brasileira de Ciências, 2020 This study aimed to evaluate the performance in feedlot and temperament of Nellore bulls classified by residual feed intake. The residual feed intake was calculated as the difference between the observed and predicted dry matter intake.
TIAGO P. GUIMARÃES +6 more
doaj +1 more source
Frontiers in Molecular Biosciences, 2023 The opportunity to select for feed efficient cows has been limited by inability to cost-effectively record individual feed efficiency on an appropriate scale.
Dagnachew Hailemariam +5 more
doaj +1 more source
Phenotypic evaluation of feed efficiency, growth and carcass traits in native turkeys [PDF]
Journal of Central European Agriculture, 2023 Improving feed efficiency decreases feed intake, total cost, and the environmental emission of poultry production. This study aimed to investigate different feed efficiency, growth and carcass traits between high and low feed efficiency birds in Iranian ...
Zahra Pezeshkian +3 more
doaj +1 more source
Methane, growth and carcase considerations when breeding for more efficient Merino sheep production
Animal, 2023 Feed intake, methane and feed efficiency have important genetic correlations with growth, carcase weights and mature size that need to be considered when breeding for production whilst reducing feed requirements and methane production in the Australian ...
G. Rose +8 more
doaj +1 more source
Effects of Feeding and Drinking Behavior on Performance and Carcass Traits in Beef Cattle
Animals, 2022 Feed and water efficiency are important traits to improve beef cattle production’s economic and environmental sustainability. This study evaluated residual feed intake (RFI) and residual water intake (RWI) and their relationship with performance ...
Bianca V. Pires +10 more
doaj +1 more source
Animals, 2021 The inclusion of feed efficiency in the breeding goal for dairy cattle has been discussed for many years. The effects of incorporating feed efficiency into a selection index were assessed by indirect selection (dry matter intake) and direct selection ...
Kerry Houlahan +12 more
doaj +1 more source