Author(s): FERNANDES, A. C.; REVERTER, A.; KEOGH, K.; ALEXANDRE, P. A.; AFONSO, J.; PALHARES, J. C. P.; CARDOSO, T. F.; MALHEIROS, J. M.; BRUSCADIN, J. J.; OLIVEIRA, P. S N. DE; MOURÃO, G. B.; REGITANO, L. C. de A.; COUTINHO, L. L.

Summary: Feed cost represents a major economic determinant within cattle production, amounting to an estimated 75% of the total variable costs. Consequently, comprehensive approaches such as optimizing feed utilization through alternative feed sources, alongside the selection of feed-efficient animals, are of great significance. Here, we investigate the effect of two diets, traditional corn-grain fed and alternative by-product based, on 14 phenotypes related to feed, methane emission and production efficiency and on multi-tissue transcriptomics data from liver, muscle, and rumen wall, derived from 52 Nellore bulls, 26 on each diet. To this end, diets were contrasted at the level of phenotype, gene expression, and gene-phenotype network connectivity. As regards the phenotypic level, at a P value?

Publication year: 2024

Types of publication: Journal article

Unit: Embrapa Southeastern Livestock

Keywords: Carcass yield, Cattle production, Feed cost, Feed efficient, Gado Nelore, Methane emission, Production efficiency, Rib eye muscle area, Transcriptomics multi tissue rumen wall