Fecha/hora: 16/06/2024 01:09:39

Biblioteca(s): | INIA Treinta y Tres.
Fecha corriente: | 28/05/2021
Fecha de la última actualización: | 31/05/2021
Autoria: | MARTÍNEZ, G.; LEMA, O.M.; AGUILAR, I.; GIMENO, D.; RAVAGNOLO, O.
Afiliación: | GUILLERMO MARTÍNEZ BOGGIO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; OSCAR MARIO LEMA QUEIJO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; IGNACIO AGUILAR GARCIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DIEGO GIMENO, Secretariado Uruguayo de la Lana (SUL).; OLGA RAVAGNOLO GUMILA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título: | Reproductive performance of Angus, Hereford, Salers and Nellore crossbred females: Additive and non-additive effects.
Año de publicación: | 2021
Fuente/Imprenta: | Journal of Animal Breeding and Genetics, May 2021, art. no. 12553. Doi: https://doi.org/10.1111/jbg.12553
Páginas: | p.1-10.
DOI: | 10.1111/jbg.12553
Idioma: | Inglés

Notas:

Article history: Received: 7 December 2020 // Revised: 17 April 2021 // Accepted: 24 April 2021. First published: 18 May 2021. 
Corresponding author: guillermo.martinezboggio@gmail.com

Contenido: | Reproductive traits in breeding herds can be improved through crossbreeding, which results in breed differences, heterosis and breed complementarity. The aim of this study was to estimate group additive genetic and dominance effects for three reproductive traits; probability of artificial insemination (AIP); calving success (CS); and days to calving (DC) for Hereford (H), Angus (A), Nellore (N) and Salers (S) breeds under grazing conditions. Data were obtained from an experiment carried out during 1992?2002 by the Faculty of Agronomy, Universidad de la Republica (UdelaR), Uruguay and Caja Notarial de Seguridad Social. The data set contained reproductive information of 1,164 females from 11 different genetic groups (GG) consisting of crosses between H, N, S and A. AIP, CS and DC were examined in first-calf heifers, while CS and DC were examined in second-calf and 3-to 7-year-old cows. Least square means for each GG and group additive genetic and dominance effects were estimated for each trait. F1 crossbreed females performed better for artificial insemination probability than purebred females. Crossbred A/H heifers had the highest AIPs and CS rates, while crossbred N/H 3-to 7-year-old cows recorded the highest averages for CS and DC. Estimates of group additive genetic effects did not differ amongst A, S, N and H; however, dominance increased the AIP and CS of the heifers.
Palabras-Clave: | ADDITIVE GROUP GENETIC EFFECTS; BEEF CATLLE; CROSSBREEDING; DOMINANCE; REPRODUCTIVE PERFORMANCE.
Categoría del tema: | L10 Genética y mejoramiento animal
Registro original: | INIA Treinta y Tres (TT)
Ejemplares: | TT - (103297-1) - PXI - AP - DD - PP/Jr.Animal Breed.&Genetics/2021 -  -  - DIS