JOURNAL ARTICLE

Genetic Parameters for Various Semen Quality and Reproductive Performance Traits in Nellore Cattle Including X Chromosome Markers.

  • Published In: Journal of Animal Science, 2023, v. 101. P. 340 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: de Carvalho, Felipe E.; Ferraz, José Bento S.; Pedrosa, Victor B.; Eler, Joanir P.; de Mattos, Elisangela C.; Silva, Marcio R.; Domingos Guimaraes, José; Bussiman, Fernando; Silva, Barbara da Conceição A.; Araujo, Andre C.; Hui Wen; Mulim, Henrique A.; Oliveira Rocha, Artur; Brito, Luiz F. F. 3 of 3

Abstract

The article focuses on recent genetic studies in livestock, including Nellore cattle and Brazilian Anglo-Nubian goats, aimed at improving breeding programs through genomic analysis. In Nellore cattle, the inclusion of X chromosome markers alongside autosomal markers revealed that both contribute to heritable variation in fertility, semen quality, and reproductive traits, supporting the feasibility of genetic progress in these areas. Additionally, a pilot study on Brazilian Anglo-Nubian goats evaluated the impact of incorporating genomic information on predicting genetic resistance to the parasite Haemonchus contortus, using a novel Parasitic Resistance (PR) trait derived from body condition, FAMACHA scores, and fecal egg counts. These findings provide foundational data for enhancing selection strategies to improve reproductive performance and parasite resistance in these livestock populations.

Additional Information

  • Source:Journal of Animal Science. 2023/11, Vol. 101, p340
  • Document Type:Article
  • Subject Area:Health and Medicine
  • Publication Date:2023
  • ISSN:0021-8812
  • DOI:10.1093/jas/skad281.406
  • Accession Number:173680863
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