Results 271 to 280 of about 86,546 (308)

Comparison of genomic prediction methods for residual feed intake in broilers

Animal Genetics, 2022
SummaryResidual feed intake (RFI) is a measure of the feed efficiency of animals. Previous studies have identified SNPs associated with RFI. The objective of this study was to compare the GBLUP model with the GA‐BLUP model including previously identified associated SNPs. The nine associated SNPs were obtained from the genome‐wide association study on a
Zhengxiao He, Sen Li, Wei Li, Jiqiang Ding, Maiqing Zheng, Qinghe Li, Alan G. Fahey, Jie Wen, Ranran Liu, Guiping Zhao   +9 more
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Residual Feed Intake in Animal Nutrition

2022
Yemlerin hayvanlar tarafından değerlendirilmesinde kullanılan farklı birimler bulunmakla birlikte, rezidüel yem tüketiminin kullanıldığı çalışmaların oldukça sınırlı olduğu dikkati çekmektedir. Rezidüel yem tüketimi bir hayvanın gerçek yem tüketimi ile onun cüssesine ve büyümesine bağlı olarak beklenen yem tüketimi arasındaki fark olarak ...
ELFAKİ, Mahmoud O. A., KILIÇ, Ünal
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Residual feed intake measured as replacement heifers is indicative of residual feed intake measured as mature cows

Canadian Journal of Animal Science
This study aimed to quantify the relationship between residual feed intake (RFI) measured in 500 heifers and subsequently as mid-gestation cows at the Roy Berg Kinsella Research Station (KIN; n = 227) and Lacombe Research and Development Centre (LRDC; n = 273).
C.A. Olson, C. Li, H. Block, L. McKeown, T. Valente, C. Fitzsimmons, G. Plastow, J.A. Basarab   +7 more
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Physiological basis for residual feed intake.

Journal of animal science, 2009
Residual feed intake (RFI) is a measure of feed efficiency that is independent of level of production, such as size and growth rate in beef cattle, and thus is a useful new trait for studying the physiological mechanisms underlying variation in feed efficiency. Five major physiological processes are likely to contribute to variation in RFI, these being
R M, Herd, P F, Arthur
openaire   +1 more source

Feeding Behavior of Yorkshire Pigs Selected for Residual Feed Intake

2009
Feeding behavior traits were evaluated in Yorkshire gilts from the fourth generation of the ISU residual feed intake (RFI) selection experiment. Gilts were fed using FIRE feeders. Compared to the randomly selected control line, pigs from the line selected for lower RFI, had lower residual feed intake, ate less per day, spent less time eating per day ...
Young, Jennifer, Cai, Weiguo, Nettleton, Dan, Dekkers, Jack   +3 more
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Relationship between feeding behavior and residual feed intake in growing Brangus heifers

Journal of Animal Science, 2009
Residual feed intake (RFI) is a measure of feed efficiency defined as the difference between actual feed intake and expected feed intake required for maintenance and production. The objective of this study was to determine the relationship between RFI, feeding behavior, and other performance traits in growing heifers.
G M, Bingham, T H, Friend, P A, Lancaster, G E, Carstens   +3 more
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Molecular basis for residual feed intake in beef cattle.

Journal of animal science, 2009
Feed provision is one of the greatest costs of beef production and, with the increasing costs of feed, will remain so for the foreseeable future. Improvement in efficiency has the potential to not only increase profits for cattle producers, but also to decrease the environmental footprint of beef cattle production.
Moore, S. S., Mujibi, F. D., Sherman, E. L.   +2 more
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Expression of candidate genes for residual feed intake in Angus cattle

Animal Genetics, 2013
SummaryResidual feed intake (RFI) has been adopted in Australia for the purpose of genetic improvement in feed efficiency in beef cattle. RFI is the difference between the observed feed intake of an animal and the predicted feed intake based on its size and growth rate over a test period.
W, Al-Husseini, C, Gondro, K, Quinn, R M, Herd, J P, Gibson, Y, Chen   +5 more
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Effect of selection for residual feed intake on feeding behavior and daily feed intake patterns in Yorkshire swine.

Journal of animal science, 2011
Residual feed intake (RFI) is a measure of feed efficiency defined as the difference between observed and predicted feed intake based on average requirements for growth and maintenance. The objective of this study was to evaluate the effect of selection for decreased RFI on feeding behavior traits and to estimate their relationships with RFI.
J M, Young, W, Cai, J C M, Dekkers
openaire   +1 more source

Residual feed intake and reproductive traits of growing Purunã bulls

Journal of Animal Science, 2017
Residual feed intake (RFI) and its relationship with reproductive traits was evaluated in growing bulls. Fifty-two growing Purunã bulls (11 mo initial age) were fed ad libitum in individual feedlot pens for 112 d. The animals were ranked for RFI and assigned to 3 feed efficiency groups: efficient (low RFI), intermediate (medium RFI), and inefficient ...
L H, Kowalski, S R, Fernandes, N, DiLorenzo, J L, Moletta, P, Rossi, J A, de Freitas   +5 more
openaire   +2 more sources