Fecundidad de la chinchilla (Chinchilla laniger gray) macho de criadero.

M., María A. Morales; M., Luis Ibarra; L., Susana Viñas; A., Hernán Biones

doi:10.5354/0716-260x.2000.9232

Cited by 1 publication

(2 citation statements)

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“…The seasonal changes in different parameters of chinchilla male and female fertility were mentioned by numerous authors (Bieniek et al, 2001;Morales et al, 2000;Nistal & Di Masso, 2009;Szeleszczuk et al, 2017) as were the changes in the parameters of semen quality and testicular activity in chinchilla males (Busso et al, 2012;Busso, Ponzio, Fiol do Cuneo & Ruiz, 2005;Dominchin et al, 2014;Surmacki et al, 2011). Although Dierżanowska-Góryń et al (2011) found some changes in chinchilla female fertility between winter and summer, they did not attribute those changes in the season itself but rather to the differences in farm management.…”

Section: Ta B L Ementioning

confidence: 99%

“…Further, seasonal changes in androgen metabolites and the quality of semen of male chinchillas with natural photoperiod were addressed (Dominchin et al., 2014) as well as seasonal changes in the structure of male testicles (Surmacki et al., 2011). Joint chinchilla male and female reproductive performance and fertility have also been studied (Călămar et al., 2008; Galeano et al., 2014; Morales et al., 2000; Novikov & Shumilina, 2015). However, relatively little attention has been paid so far to the reproductive life performance of male chinchillas and their length of use in reproduction.…”

Section: Introductionmentioning

confidence: 99%

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The analysis of chinchilla (Chinchilla lanigera, M.) male reproduction. The case of a leading polish breeding farm

Kania-Gierdziewicz

Otwinowska-Mindur

Bieniek

2020

Animal Science Journal

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Research into the chinchilla male fertility concerned mainly semen quality. Little attention has been paid to lifetime reproductive performance, essential from the economical point of view. Thus, the aim of this study was to analyze factors affecting the intensity of breeding use and lifetime performance of male chinchillas. After data transformation, the analysis of variance was performed to evaluate the effect of male birth litter size and age at the first effective mating. Additionally, the correlation coefficients for both litter sizes and litter rearing efficiency were calculated. For all traits, the linear regression on the sire's age at the first effective mating was found non‐significant. Litter sizes differed slightly between seasons. The length of sire reproductive use was highly correlated (about 0.8) with the total number of litters and kits born and weaned. The total rearing efficiency was low, and in some cases negatively correlated with other traits, that is, with the total number of litters and kits born and weaned. Most sires were mated up to six dams; they were used in one polygamous set each. In total, the males sired about 60 litters each, hence the conclusion is that they could be extensively used and produce more benefits to chinchilla breeders.

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