Genetic mechanisms underlying spermatic and testicular traits within and among cattle breeds: systematic review and prioritization of GWAS results

PAS Fonseca, FC Dos Santos, S Lam… - Journal of animal …, 2018 - academic.oup.com
Reduced bull fertility imposes economic losses in bovine herds. Specifically, testicular and
spermatic traits are important indicators of reproductive efficiency. Several genome-wide …

Estimation of genetic parameters for body weights, scrotal circumference, and testicular volume measured at different ages in Nellore cattle

AA Boligon, JAV Silva, RC Sesana… - Journal of animal …, 2010 - academic.oup.com
Data from 129,575 Nellore cattle born between 1993 and 2006, belonging to the
Jacarezinho cattle-raising farm, were used to estimate genetic parameters for scrotal …

[HTML][HTML] Genetic parameters and relationships of heifer pregnancy and age at first calving with weight gain, yearling and mature weight in Nelore cattle

AA Boligon, LG Albuquerque - Livestock Science, 2011 - Elsevier
The objectives of the current study were to investigate the additive genetic associations
between heifer pregnancy at 16months of age (HP16) and age at first calving (AFC) with …

Estimates of genetic correlations between days to calving and reproductive and weight traits in Nelore cattle

S Forni, LG Albuquerque - Journal of animal science, 2005 - academic.oup.com
Data comprising 53,181 calving records were analyzed to estimate the genetic correlation
between days to calving (DC), and days to first calving (DFC), and the following traits: scrotal …

[HTML][HTML] Study of relations among age at first calving, average weight gains and weights from weaning to maturity in Nellore cattle

AA Boligon, LG Albuquerque… - Revista Brasileira de …, 2010 - SciELO Brasil
Data from 23,120 Nellore animals were used to estimate genetic parameters for age at first
calving, average gains from weaning to yearling and from yearling to after yearling, weaning …

Estimativas de parâmetros genéticos para os escores visuais e suas associações com peso corporal em bovinos de corte

W Koury Filho, LG Albuquerque, S Forni… - Revista Brasileira de …, 2010 - SciELO Brasil
Foram avaliados 27.523 e 21.746 registros das características conformação, precocidade e
musculatura à desmana e ao sobreano, respectivamente, para estimar os componentes de …

Genetic relationships among traits related to reproduction and growth of Nelore females

JP Eler, AB Bignardi, JBS Ferraz, ML Santana Jr - Theriogenology, 2014 - Elsevier
The objective of the study presented here was to analyze the genetic relationships among
heifer pregnancy (HP), age at first calving (AFC), stayability (STAY), average annual …

[HTML][HTML] Associações genéticas entre pesos e características reprodutivas em rebanhos da raça Nelore

AA Boligon, LG Albuquerque… - Revista Brasileira de …, 2008 - SciELO Brasil
Dados de 14.918 animais da raça Nelore nascidos entre 1991 e 2000, provenientes de
rebanhos localizados nas regiões Sul e Sudeste do País, foram utilizados para estimar …

Genetic Parameters of Birth Weight and Weaning Weight and Their Relationship with Gestation Length and Age at First Calving in Hanwoo (Bos taurus coreanae)

BI Lopez, KG Santiago, K Seo, T Jeong, JE Park… - Animals, 2020 - mdpi.com
Simple Summary Hanwoo cattle is considered one of the most economically important
species and sources of nutrition for Koreans. Thus, both the reproductive performance and …

[HTML][HTML] Estimativas de herdabilidade para idade ao primeiro parto de novilhas da raça Nelore

LT Dias, L El Faro, LG Albuquerque - Revista Brasileira de Zootecnia, 2004 - SciELO Brasil
Estimaram-se parâmetros genéticos para idade ao primeiro parto (IPP) de,
aproximadamente, 6.000 novilhas, utilizando-se três diferentes definições de grupo …