Results 1 to 10 of about 1,805,831 (288)

Effects of Incorporating Dry Matter Intake and Residual Feed Intake into a Selection Index for Dairy Cattle Using Deterministic Modeling [PDF]

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, Flavio S. Schenkel, Dagnachew Hailemariam, Jan Lassen, Morten Kargo, John B. Cole, Erin E. Connor, Silvia Wegmann, Oliveira Junior, Filippo Miglior, Allison Fleming, Tatiane C.S. Chud, Christine F. Baes   +12 more
doaj   +6 more sources

New residual feed intake criterion for longitudinal data

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, Van-Hung Huynh Tran, Hélène Gilbert   +2 more
doaj   +3 more sources

Milk metabolomics analyses of lactating dairy cows with divergent residual feed intake reveals physiological underpinnings and novel biomarkers

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, Mohsen Hashemiranjbar, Ghader Manafiazar, Ghader Manafiazar, Paul Stothard, Graham Plastow   +5 more
doaj   +2 more sources

Novel genetic parameters for genetic residual feed intake in dairy cattle using time series data from multiple parities and countries in North America and Europe

Journal of Dairy Science, 2023
: Residual feed intake is viewed as an important trait in breeding programs that could be used to enhance genetic progress in feed efficiency. In particular, improving feed efficiency could improve both economic and environmental sustainability in the ...
R.B. Stephansen, P. Martin, C.I.V. Manzanilla-Pech, B. Gredler-Grandl, G. Sahana, P. Madsen, K. Weigel, R.J. Tempelman, F. Peñagaricano, K.L. Parker Gaddis, H.M. White, J.E.P. Santos, J.E. Koltes, F. Schenkel, D. Hailemariam, G. Plastow, E. Abdalla, M. VandeHaar, R.F. Veerkamp, C. Baes, J. Lassen   +20 more
doaj   +2 more sources

Residual Feed Intake as a Behavioral, Nutritional and Economic Criterion in Poultry Production. [PDF]

Animals (Basel)
Simple Summary The growing human population is associated with an increased demand for food including poultry industry products. In this industry, the majority of costs affecting the final price arise from feed expenses.
Ramankevich A, Danko S, Banaszkiewicz R, Kasperek K, Zięba G.   +4 more
europepmc   +2 more sources

Rumen and Fecal Microbiota Characteristics of Qinchuan Cattle with Divergent Residual Feed Intake

Microorganisms, 2023
Residual feed intake (RFI) is one of the indicators of feed efficiency. To investigate the microbial characteristics and differences in the gastrointestinal tract of beef cattle with different RFI, a metagenome methodology was used to explore the ...
Chaoyun Yang, Yanling Ding, Zonghua Su   +2 more
exaly   +2 more sources

Residual feed intake in laying hens during the late laying period: associations with nutrient utilization, antioxidant capacity, and gut barrier function [PDF]

Journal of Animal Science and Biotechnology
Background Residual feed intake is defined as the difference between the actual feed intake of poultry and the predicted feed intake based on their growth and maintenance requirements. It reflects the metabolic differences that are genetically determined
Zhouyang Gao, Zhiqiong Mao, Qiujuan Sun, Chuanwei Zheng, Guoming Ma, Jingjie Zhuang, Yan Wu, Yuhui Qin, Tong Xu, Guiyun Xu   +9 more
doaj   +2 more sources

Genetic parameters for residual feed intake, methane emissions, and body composition in New Zealand maternal sheep

Frontiers in Genetics, 2022
There is simultaneous interest in improving the feed efficiency of ruminant livestock and reducing methane (CH4) emissions. The relationship (genetic and phenotypic) between feed efficiency (characterized as residual feed intake: RFI) and greenhouse ...
Peter Janssen, Arjan Jonker, Ken Dodds   +2 more
exaly   +2 more sources

Rumen Microbiome and Metabolome of High and Low Residual Feed Intake Angus Heifers

Frontiers in Veterinary Science, 2022
Feed cost is the greatest expense during cattle production; therefore, reducing it is critical to increasing producer profits. In ruminants, the microbial population is important to nutrient digestion and absorption in the rumen.
Hao Wu
exaly   +2 more sources

Residual feed intake: A limiting economic factor for selection in poultry breeding programs

Annals of Agricultural Sciences, 2021
The recent breeding programs for livestock and poultry projects have aimed at maximizing productivity and minimizing gross costs. It is well known that feed represents the main variable component affecting the productive process.
M.M. Fathi, A. Galal, I. Al-Homidan, O.K. Abou-Emera, G.N. Rayan   +4 more
doaj   +2 more sources