Effects of zilpaterol hydrochloride feeding time and feedlot days on performance, ...
| Full text | |
| Author(s): Show less - |
Santana, M. H. A.
[1]
;
Utsunomiya, Y. T.
[2]
;
Neves, H. H. R.
[2]
;
Gomes, R. C.
[3]
;
Garcia, J. F.
[2, 4]
;
Fukumasu, H.
[1]
;
Silva, S. L.
[1]
;
Leme, P. R.
[1]
;
Coutinho, L. L.
[5]
;
Eler, J. P.
[1]
;
Ferraz, J. B. S.
[1]
Total Authors: 11
|
| Affiliation: | [1] Univ Sao Paulo, Fac Zootecnia & Engn Alimentos, USP, Pirassununga - Brazil
[2] Univ Estadual Paulista, UNESP, Fac Ciencias Agr & Vet, Jaboticabal - Brazil
[3] CNPGC EMBRAPA, Empresa Brasileira Pesquisa Agr, Campo Grande - Brazil
[4] Univ Estadual Paulista, UNESP, Fac Med Vet Aracatuba, Aracatuba - Brazil
[5] Univ Sao Paulo, USP, Escola Super Agr Luiz de Queiroz, Piracicaba - Brazil
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | JOURNAL OF ANIMAL BREEDING AND GENETICS; v. 131, n. 3, p. 210-216, JUN 2014. |
| Web of Science Citations: | 10 |
| Abstract | |
The genome-wide association study (GWAS) results are presented for average daily gain (ADG) in Nellore cattle. Phenotype of 720 male Bos indicus animals with information of ADG in feedlots and 354147 single-nucleotide polymorphisms (SNPs) obtained from a database added by information from Illumina Bovine HD (777962 SNPs) and Illumina BovineSNP50 (54609) by imputation were used. After quality control and imputation, 290620 SNPs remained in the association analysis, using R package Genome-wide Rapid Association using Mixed Model and Regression method GRAMMAR-Gamma. A genomic region with six significant SNPs, at Bonferroni-corrected significance, was found on chromosome 3. The most significant SNP (rs42518459, BTA3: 85849977, p=9.49x10(-8)) explained 5.62% of the phenotypic variance and had the allele substitution effect of -0.269kg/day. Important genes such as PDE4B, LEPR, CYP2J2 and FGGY are located near this region, which is overlapped by 12 quantitative trait locus (QTLs) described for several production traits. Other regions with markers with suggestive effects were identified in BTA6 and BTA10. This study showed regions with major effects on ADG in Bos indicus in feedlots. This information may be useful to increase the efficiency of selecting this trait and to understand the physiological processes involved in its regulation. (AU) | |
| FAPESP's process: | 11/16643-2 - Genome-Wide Association Study for detection of chromosomal regions related to scrotal circumference in Nellore cattle |
| Grantee: | Yuri Tani Utsunomiya |
| Support type: | Scholarships in Brazil - Master |
| FAPESP's process: | 12/03551-5 - Genomic study for intake and feed efficiency in Nellore cattle |
| Grantee: | Miguel Henrique de Almeida Santana |
| Support type: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 12/02039-9 - Genomic study of feed intake and efficiency in Nellore cattle |
| Grantee: | José Bento Sterman Ferraz |
| Support type: | Regular Research Grants |