Results 41 to 50 of about 1,805,831 (288)

Long-term divergent selection for residual feed intake in Chinese broiler chickens

Poultry Science, 2022
This study aimed to assess the effect of inbreeding on production traits using a long-term closed-line population recorded for residual feed intake (RFI). The study first used data from a previously reported population to determine the appropriate period
X. Zou, Tian-Fei Liu, Ying Li, Peng Chen, Xia Yan, Jie Ma, J. Ji, H. Qu, Manshan Cai, Yan-Hua He, Jinhui He, Xin-Chun Xu, Chu-xiao Lin, G. Zhou, D. Shu, C. Luo   +15 more
semanticscholar   +1 more source

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, Rebecca Danielsson, Maria Åkerlind, Kjell Holtenius   +3 more
doaj   +1 more source

Effect of diet energy level and genomic residual feed intake on bred Holstein dairy heifer growth and feed efficiency.

Journal of Dairy Science, 2022
The objective of this study was to determine growth, feed intake, and feed efficiency of postbred dairy heifers with different genomic residual feed intake (RFI) predicted as a lactating cow when offered diets differing in energy density.
K. T. Williams, K. Weigel, W. Coblentz, N. Esser, H. Schlesser, P. Hoffman, R. Ogden, H. Su, M. S. Akins   +8 more
semanticscholar   +1 more source

Expression of candidate genes for residual feed intake in tropically adapted Bos taurus and Bos indicus bulls under thermoneutral and heat stress environmental conditions.

Journal of Thermal Biology, 2021
The objectives of this study were to measure the relative expression of the ATP1A1, NR3C1, POMC, NPY, and LEP genes in Caracu (Bos taurus) and Nelore (Bos indicus) bulls submitted to feed efficiency tests at high environmental temperatures, and to ...
B. V. Pires, N. Stafuzza, L. A. de Freitas, M. Mercadante, E. Ramos, Claudia Cristina Paro de Paz   +5 more
semanticscholar   +1 more source

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, Maria Eugênia Zerlotti Mercadante, Joslaine Noely Dos Santos Gonçalves Cyrillo, Roberta Carrilho Canesin, Sarah Figueiredo Martins Bonilha, Lucia Galvão de Albuquerque   +5 more
doaj   +1 more source

Small Intestine Microbiome and Metabolome of High and Low Residual Feed Intake Angus Heifers

Frontiers in Microbiology, 2022
The gastrointestinal tract (GIT) contains complex microbial communities and plays an essential role in the overall health of the host. Previous studies of beef cattle feed efficiency have primarily concentrated on the ruminal microbiota because it plays ...
Yue Liu, Chang Liu, Hao Wu, Q. Meng, Zhen-Ming Zhou   +4 more
semanticscholar   +1 more source

Genetic relationships between feed efficiency and gut microbiome in pig lines selected for residual feed intake

Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie, 2021
This study aimed to evaluate the genetic relationship between faecal microbial composition and five feed efficiency (FE) and production traits, residual feed intake (RFI), feed conversion ratio (FCR), daily feed intake (DFI), average daily gain (ADG) and
A. Aliakbari, O. Zemb, Y. Billon, Céline Barilly, Ingrid Ahn, J. Riquet, H. Gilbert   +6 more
semanticscholar   +1 more source

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, A. Gondo, R.C. Gomes, J.A. Fernandes Junior, M.N. Ribas, L.F. Brito, M.M.M. Laureano, C.V. Araújo, G.R.O. Menezes   +8 more
doaj   +1 more source

Comparison of methods to predict feed intake and residual feed intake using behavioral and metabolite data in addition to classical performance variables.

Journal of Dairy Science, 2021
Predicting dry matter intake (DMI) and feed efficiency by leveraging the use of data streams available on farm could aid efforts to improve the feed efficiency of dairy cattle.
Malia J. Martin, J. Dórea, M. Borchers, R. Wallace, S. J. Bertics, S. K. DeNise, K. Weigel, H. White   +7 more
semanticscholar   +1 more source

Residual feed intake and relationships with performance of Nellore cattle selected for post weaning weight Consumo alimentar residual e relações com o desempenho de bovinos Nelore selecionados para peso pós-desmame

Revista Brasileira de Zootecnia, 2011
The objective of this work was to evaluate performance, efficiency parameters and phenotypic correlations among measurements of energy efficiency of Nellore cattle selected for post weaning weight and classified according to residual feed intake ...
T. Lucila Sobrinho, R.H. Branco, S.F.M. Bonilha, A.M. Castilhos, L.A. Figueiredo, A.G. Razook, M.E.Z. Mercadante   +6 more
doaj   +1 more source