Variation in reproductive output as a function of maternal age and weather conditions in the cultured Asian yellow pond turtle, Mauremys mutica
文献类型： 外文期刊
作者： Wang, Yakun 1 ; Zhao, Jian 1 ; Liu, Xiaoli 1 ; Qing Shangguan 1 ; Li, Wei 1 ; Shu Ouyan 1 ; Zhu, Xinping 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Minist Agr & Rural Affairs, Key Lab Trop & Subtrop Fishery Resource Applicat, Guangzhou 510380, Guangdong, Peoples R China
2.Nanchang Univ, Coll Life Sci, Nanchang 330031, Jiangxi, Peoples R China
3.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China
关键词： Maternal age; Mauremys mutica; reproductive output; stock management; weather variation
期刊名称：ANIMAL BIOLOGY （ 影响因子：1.475； 五年影响因子：1.375 ）
ISSN： 1570-7555
年卷期： 2020 年 70 卷 3 期
页码：
收录情况： SCI
摘要： Biotic factors (e.g., maternal age) and abiotic factors (e.g., weather) play vital roles in reproduction. However, there is little information about the combined effects of maternal age and weather on the reproductive output of cultured Asian yellow pond turtles, Mauremys mutica. To address this issue, we surveyed and compared the reproductive output of 13-year-old and 25-year-old female turtles on non-rainy and rainy days. The results showed that older females produced larger eggs than younger females regardless of the weather conditions. Females laid larger clutch sizes (number of eggs per nest) under non-rainy conditions compared with those under rainy conditions. However. the variation in clutch frequency (number of clutches per day) was independent of maternal age and weather. There was no effect of an interaction between maternal age and weather on egg mass, clutch size or clutch frequency. Our results suggest that maternal age and weather had significant effects on egg mass and clutch size. respectively. These results imply that maternal age, together with weather conditions (mainly conditions of rain). can affect the reproductive output of M. mutica. Our results provide useful information for the artificial breeding and stock management of M. mutica.
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