Sex, litter size and number of birth effect on birth and weaning weights of Guinea pigs (Cavia porcellus) genotype Cieneguilla

Abstract:

This study determine the effect of sex, litter size and number of calving on weights at birth and weaning of 1,099 guinea pigs of the Cieneguilla genotype, from the National Agrarian University La Molina, Peru. The data of different litters were recorded from birth to weaning. Each factor was analyzed separately and as a whole. The sex did not influence on birth weights and weaning weights of offspring (P> 0.05); while in litter size (P <0.5) there is an inverse effect on the variables. At smaller litter size higher weights were reached. The litter size interrelate with the number of births creating an effect where there are better weights in the first parturition (P <0.5) than in the second one. Litter size is the most influential factor in the development of guinea pig weights and interacts with the variability of other factors such as sex or number of births.

Año de publicación:

2019

Keywords:

Fuente:

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