Reproduction of Bothrops spp. en criadero de conservación
Most species of Bothrops genus reproduce seasonally. The mating season usually occurs in the autumn and parturition is observed at the end of the summer. However, there are reports of wide variation in these reproductive traits (eg, breeding season, gestation and birth) especially in species kept in...
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Veröffentlicht in: | Veterinária e zootecnia 2013-12, Vol.20 (4), p.632 |
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Sprache: | por |
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Zusammenfassung: | Most species of Bothrops genus reproduce seasonally. The mating season usually occurs in the autumn and parturition is observed at the end of the summer. However, there are reports of wide variation in these reproductive traits (eg, breeding season, gestation and birth) especially in species kept in captivity. Thus, the aim of this study was to analyze the cycle and reproductive behavior of specimens of the genus Bothrops in order to contribute to management and conservation ex situ. The study was conducted in a conservation breeder in Americana, Sao Paulo, Brazil. Most species mated between May to June (autumn), except B. moojeni. Mating lasted from 3 to 5 hours. Gestation lasted from 4 to 5 months, according to the sperm storage previously reported for these species. Births occurred between December and February (summer). The synchrony and seasonality observed of the studied species corroborate the hypothesis of a conserved reproductive cycle in the genus Bothrops. Keywords: Bothrops ssp., reproduction, mating season, births, captivity A maioria das especies do genero Bothrops apresenta reproducao sazonal. O periodo de acasalamento geralmente ocorre no outono e a parturicao e observada ao final no verao. Entretanto, ha relatos de ampla variacao destes aspectos reprodutivos (e.g. epoca de acasalamento, gestacao e nascimento) principalmente em especies mantidas em cativeiro. Dessa forma, o objetivo deste trabalho foi analisar o ciclo e o comportamento reprodutivo de especimes do genero Bothrops visando contribuir com o manejo e a conservacao ex situ. O estudo foi conduzido em um criadouro conservacionista em Americana--Sao Paulo. As maioria das especies acasalou entre maio e junho (outono), exceto B. moojeni. A duracao das copulas foram de 3 a 5 horas. O periodo gestacional se estendeu de 4 a 5 meses, considerando a estocagem de esperma, ja observada nestas especies. Os nascimentos ocorreram entre dezembro e fevereiro (verao). A sincronia e a sazonalidade observadas nos eventos reprodutivos na maioria das especies estudadas comprovam a hipotese de um ciclo reprodutivo conservado para o genero Bothrops. Palavras-chave: Bothrops ssp., reproducao, copula sazonal, nascimentos, cativeiro La mayoria de las especies del genero Bothrops presentan reproduccion estacional. La temporada de apareamiento ocurre generalmente en el otono y el parto se observa al final del verano. Existen datos con relacion a una amplia variacion en aspectos reproductivos tales como tempo |
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ISSN: | 0102-5716 |