Genetic values of productive and reproductive traits in Romosinuano cattle
In a Romosinuano native Colombian conservation herd, estimated genetic values (Expected Progeny Differences, EPD) of productive traits (birth, weaning and yearling weights and cow weights at calving and at calf weaning); and reproductive behavior (age at first calving and calving interval) were calc...
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Corporación Colombiana de Investigación Agropecuaria (Agrosavia)
2018
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ir-20.500.12324-338592020-07-08T21:24:02Z Genetic values of productive and reproductive traits in Romosinuano cattle Valores genéticos de caracteres productivos y reproductivos en bovinos Romosinuano Ossa, Gustavo Alfonso Pérez, Juan Esteban Suárez, Marco Antonio Ganado bovino Genética animal Comportamiento reproductivo Ganadería y especies menores In a Romosinuano native Colombian conservation herd, estimated genetic values (Expected Progeny Differences, EPD) of productive traits (birth, weaning and yearling weights and cow weights at calving and at calf weaning); and reproductive behavior (age at first calving and calving interval) were calculated. Among bulls with the higher and lower genetic potential, EPD’s for birth, weaning and yearling weights of their progenies were: +4.07, +29.30 and +36.04 kg. For cows weights at calving and weaning of theirs calves were: +36.04 and y 43.23 kg. The values for age at first calving and calving interval were: –89.35 and –30.10 days. Genetic variability of these traits has been maintained because regression coefficients (r2) were close to 0. The most probably production ability (MPPA) of each cow was estimated and then a linear correlation was established between the genetic value (as DEP) and as MPPA for the birth and weaning weight; which were positive (r =0,91 and 0,72). The herd generation interval was 4.93 years: 3.92 and 6.99 years for males and females, respectively. En un hato de conservación del ganado criollo colombiano Romosinuano se estimaron los valores genéticos (Diferencias Esperadas de Progenie, DEP) de los caracteres de crecimiento (peso al nacimiento, al destete y a los 16 meses en terneros, y pesos al parto y al destete de su cría en vacas), así como de los rasgos reproductivos en hembras (edad al primer parto e intervalos entre partos). Las DEP diferenciales entre los toros de mayor y menor potencial genético para los pesos al nacer, al destete y a los 16 meses fueron respectivamente de +4,07, +29,30 y +36,04 kg. Las DEP de las vacas para los pesos al parto y al destete del ternero fueron de +36,04 y +43,23 kg. Para la edad al primer parto y el intervalo entre partos las DEP fueron de –89,35 y –30,10 días, respectivamente. Sin embargo, la variabilidad genética de estos caracteres se ha mantenido, ya que los coeficientes de regresión (r2) fueron cercanos a cero. Se estimó la capacidad más probable de producción (CMPP) de cada vaca y luego se estableció una correlación lineal entre el valor genético (DEP) y la CMPP para los pesos al nacer y al destete, las cuales fueron altas (r = +0,91 y +0,79). El intervalo entre generaciones calculado para el hato fue de 4,96 años: 3,92 y 6,99 años para machos y hembras, respectivamente. Ganado de carne 2018-11-06T20:41:24Z 2018-11-06T20:41:24Z 2008 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://revista.corpoica.org.co/index.php/revista/article/view/109 10.21930/rcta.vol9_num1_art:109 http://hdl.handle.net/20.500.12324/33859 reponame:Biblioteca Digital Agropecuaria de Colombia repourl:https://repository.agrosavia.co instname:Corporación colombiana de investigación agropecuaria AGROSAVIA spa http://revista.corpoica.org.co/index.php/revista/article/view/109/110 application/pdf Colombia Corporación Colombiana de Investigación Agropecuaria (Agrosavia) Corpoica Ciencia y Tecnología Agropecuaria; Vol 9 No 1 (2008); 93-101 Corpoica Ciencia y Tecnología Agropecuaria; Vol. 9 Núm. 1 (2008); 93-101 revista Corpoica Ciência e Tecnologia Agropecuária; v. 9 n. 1 (2008); 93-101 2500-5308 0122-8706 10.21930/rcta.vol9-num1 |
institution |
Agrosavia |
collection |
DSpace |
language |
Español (Spanish) |
topic |
Ganado bovino Genética animal Comportamiento reproductivo Ganadería y especies menores |
spellingShingle |
Ganado bovino Genética animal Comportamiento reproductivo Ganadería y especies menores Ossa, Gustavo Alfonso Pérez, Juan Esteban Suárez, Marco Antonio Genetic values of productive and reproductive traits in Romosinuano cattle |
description |
In a Romosinuano native Colombian conservation herd, estimated genetic values (Expected Progeny Differences, EPD) of productive traits (birth, weaning and yearling weights and cow weights at calving and at calf weaning); and reproductive behavior (age at first calving and calving interval) were calculated. Among bulls with the higher and lower genetic potential, EPD’s for birth, weaning and yearling weights of their progenies were: +4.07, +29.30 and +36.04 kg. For cows weights at calving and weaning of theirs calves were: +36.04 and y 43.23 kg. The values for age at first calving and calving interval were: –89.35 and –30.10 days. Genetic variability of these traits has been maintained because regression coefficients (r2) were close to 0. The most probably production ability (MPPA) of each cow was estimated and then a linear correlation was established between the genetic value (as DEP) and as MPPA for the birth and weaning weight; which were positive (r =0,91 and 0,72). The herd generation interval was 4.93 years: 3.92 and 6.99 years for males and females, respectively. |
format |
Artículo (Article) |
author |
Ossa, Gustavo Alfonso Pérez, Juan Esteban Suárez, Marco Antonio |
author_facet |
Ossa, Gustavo Alfonso Pérez, Juan Esteban Suárez, Marco Antonio |
author_sort |
Ossa, Gustavo Alfonso |
title |
Genetic values of productive and reproductive traits in Romosinuano cattle |
title_short |
Genetic values of productive and reproductive traits in Romosinuano cattle |
title_full |
Genetic values of productive and reproductive traits in Romosinuano cattle |
title_fullStr |
Genetic values of productive and reproductive traits in Romosinuano cattle |
title_full_unstemmed |
Genetic values of productive and reproductive traits in Romosinuano cattle |
title_sort |
genetic values of productive and reproductive traits in romosinuano cattle |
publisher |
Corporación Colombiana de Investigación Agropecuaria (Agrosavia) |
publishDate |
2018 |
url |
http://hdl.handle.net/20.500.12324/33859 |
_version_ |
1672080865596801024 |
score |
12,131701 |