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Impacts of Reproductive Technologies on Beef Production in South America
(Springer, 2014-01-01)
The majority of beef cow herds in South America are constituted by Bos indicus females, which have particular reproductive features that contribute to reduced reproductive efficiency compared with that of B. taurus cohorts. ...
Phenotypic relationship of female sexual precocity with production and reproduction traits in beef cattle using multivariate statistical techniques
(2018-01-01)
Multivariate statistical techniques were used to characterise the differences between precocious and non-precocious Nellore females regarding the phenotypic expression of various reproductive and productive traits. Information ...
Reproductive management of beef females in South America
(Oxford Univ Press Inc, 2019-12-01)
Accumulated productivity and its genetic association with reproductive traits in females Brahman
(Univ Cordoba, 2013-10-01)
Objective. Assessment of genetic parameters for accumulative productivity trait (ACP) and genetic correlations with age at first calving (AFC), between calving interval of first and second parity (BCI1) and longevity (LONG). ...
Evidence of negative relationship between female fertility and feed efficiency in Nellore cattle
(Oxford Univ Press Inc, 2018-10-01)
The objective of this study was to evaluate phenotypic and genetic relationships between fertility traits and feed efficiency in male and female Nellore cattle. Data from 320 females born between 2004 and 2011 were used ...
Reproductive programs for beef cattle: incorporating management and reproductive techniques for better fertility
(Brazilian Coll Animal Reproduction, 2017-07-01)
This review summarizes strategies to increase overall pregnancy rates to TAI protocols, and potential areas for improvement in reproductive management of Nelore cows. Low BCS at calving and postpartum BCS loss negatively ...
Sustainable Intensification of Beef Production in the Tropics: The Role of Genetically Improving Sexual Precocity of Heifers
(2022-01-01)
Increasing productivity through continued animal genetic improvement is a crucial part of implementing sustainable livestock intensification programs. In Zebu cattle, the lack of sexual precocity is one of the main obstacles ...