Assessment of FecG E genotypes on reproductive traits in Brazilian Morada Nova and Santa Inês sheep.

Autor: Pereira AHR; Department of Animal Science, State University of Acaraú Valley (UVA), Sobral, Ceará, 62040-370, Brazil., Silveira RMF; Department of Animal Science, Luiz de Queiroz College of Agriculture, University of São Paulo (USP), Piracicaba, São Paulo, 13418900, Brazil. robsomateusfs1994@gmail.com., Carrara ER; Department of Animal Science, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil., de Moraes Silva K; Embrapa Caprinos e Ovinos, Sobral, Ceará, Brazil., Lobo RNB; Embrapa Caprinos e Ovinos, Sobral, Ceará, Brazil., de Faria DA; Faculty of Agronomy and Veterinary Medicine, Central Institute of Sciences, Campus Darcy Ribeiro, Brasília University, Brasília, Distrito Federal, 70910900, Brazil., Caetano AR; Embrapa Genetic Resources and Biotechnology, Laboratory of Animal Genetics, Brasília, Federal District, 70770917, Brazil., Paiva SR; Embrapa Genetic Resources and Biotechnology, Laboratory of Animal Genetics, Brasília, Federal District, 70770917, Brazil., Landim AV; Department of Animal Science, State University of Acaraú Valley (UVA), Sobral, Ceará, 62040-370, Brazil.
Jazyk: angličtina
Zdroj: Tropical animal health and production [Trop Anim Health Prod] 2023 Nov 23; Vol. 55 (6), pp. 413. Date of Electronic Publication: 2023 Nov 23.
DOI: 10.1007/s11250-023-03822-x
Abstrakt: The aim of this study was to evaluate the effect of the polymorphic FecG E allele on reproductive traits in Santa Inês and Morada Nova ewes. The traits evaluated were as follows: total progeny weights at birth (PWB) and weaning (PWW) and progeny survival rates at birth (PSRB) and weaning (PSRW). A total of 389 animals, belonging to two Santa Inês herds and one Morada Nova herd, were genotyped. There was a difference between the averages for all the traits studied regarding type of parturition, herd/breed, genotype/herd, and genotype/type of parturition. For each additional progeny, if the female was FecG E/E , the PWB decreased by 1.02 kg and the PWW by 3.16 kg, also with a 0.04% reduction in PSRB and no change in PSRW. If the female was FecG E/+ , the reduction in PWB was 0.24 kg, with an increase in PSRW by 0.11%, but no change in PWW and PSRB. In general, these results demonstrate that FecG +/+ females have a better ability to increase their number of progenies without reducing PWB and PWW (also similar to FecG E/+ ). Thus, it is suggested that further studies on the association between the traits of interest and candidate genes in sheep should be carried out so that the regions which have the greatest effect on the expression of these traits are actually identified. It was not possible to verify the effect of the FecG E allele on the PWB, PWW, PSRB, and PSRW in these Morada Nova and Santa Inês herds.
(© 2023. The Author(s), under exclusive licence to Springer Nature B.V.)
Databáze: MEDLINE
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