Evaluation of the impact of inbreeding on productive indicators in guinea pigs (Cavia porcellus)
DOI:
https://doi.org/10.54943/rcsxxi.6.848Keywords:
inbreeding, productivity, growth, feed conversion, guinea pigsAbstract
Inbreeding is a critical factor in animal breeding programs due to its potential negative effect on productive performance. In intensive guinea pig (Cavia porcellus) production systems, understanding its impact is essential to optimize productive efficiency and genetic sustainability. The objective of this study was to evaluate the effect of three levels of inbreeding coefficient (F = 0.000; F = 0.125; and F = 0.250) on productive indicators in Peru breed guinea pigs. A total of 36 weaned animals (18 males and 18 females) were used, distributed in a completely randomized design with three treatments and twelve replicates per group. During the experimental period, growth and feed efficiency variables were recorded. Statistical analysis was performed using ANOVA and Tukey’s test for mean comparisons. The results showed better productive performance in non-inbred animals, which reached higher weaning weights and greater body weights during the first three months of age, with highly significant differences (p < 0.001) compared to the groups with moderate and high inbreeding. Likewise, total weight gain and feed efficiency were higher in the F = 0.000 group. In conclusion, an increase in the inbreeding coefficient is associated with a significant reduction in productive performance.
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