Different prenatal supplementation strategies and its impacts on reproductive and nutrigenetics assessments of bulls in finishing phase

• Published in: Veterinary research communications 2023-06, Vol.47 (2), p.457-471
• Main Authors: Polizel, Guilherme Henrique Gebim, Espigolan, Rafael, Fantinato-Neto, Paulo, de Francisco Strefezzi, Ricardo, Rangel, Raissa Braido, de Carli, Cynthia, Fernandes, Arícia Christofaro, Dias, Evandro Fernando Ferreira, Cracco, Roberta Cavalcante, de Almeida Santana, Miguel Henrique
• Format: Article
• Language: English
• Subjects: Animals; Biomedical and Life Sciences; Cattle; Dietary Supplements; Female; Genetic diversity; Genomics; Genotype-environment interactions; Genotypes; Life Sciences; Male; Metabolic pathways; Metabolism; Nutrigenomics; Original Article; Phenotypes; Polymorphism, Single Nucleotide; Pregnancy; Prenatal experience; Reproduction; Semen; Sertoli cells; Single-nucleotide polymorphism; Sperm; Veterinary Medicine/Veterinary Science; Zoology
• ISSN: 0165-7380; 1573-7446
• DOI: 10.1007/s11259-022-09963-y

This study investigated the effect of different prenatal nutrition approaches in 126 pregnant Nellore cows on reproductive and nutrigenetic traits of the male offspring during the finishing phase. For that purpose, three nutritional treatments were used in these cows during pregnancy: PP – protein-energy supplementation in the final third, FP – protein-energy supplementation during the entire pregnancy, and NP – (control) only mineral supplementation. The male progeny (63 bulls; 665 ± 28 days of age) were evaluated for scrotal circumference, seminal traits, number of Sertoli cells and testicular area. We performed a genomic association (700 K SNPs) for scrotal circumference at this age. In addition, a functional enrichment was performed in search of significant metabolic pathways ( P