Comparison of body size and reproductive hormones in high- and low-yielding Wulong geese

Wulong geese are renowned for their egg-laying and reproductive abilities. This work investigated the potential of using body size traits in the selection and breeding of high-yielding Wulong geese. A total of forty 479day-old female geese (high-yielding geese, n = 20; low-yielding geese, n = 20) we...

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Bibliographic Details
Published in:Poultry science 2022-03, Vol.101 (3), p.101618-101618, Article 101618
Main Authors: Liu, Jingjing, Zhang, Demin, Zhang, Zhenwei, Chai, Wenqiong, Zhang, Jiqing, Li, Mengmeng, Wang, Yun, Zhang, Shuer, Zhu, Mingxia
Format: Article
Language:English
Subjects:
Animals
biochemical indicator
Body Size
Chickens
correlation
Female
Geese
Hormones
PHYSIOLOGY AND REPRODUCTION
Reproduction
reproductive hormone
Wulong goose
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Summary:Wulong geese are renowned for their egg-laying and reproductive abilities. This work investigated the potential of using body size traits in the selection and breeding of high-yielding Wulong geese. A total of forty 479day-old female geese (high-yielding geese, n = 20; low-yielding geese, n = 20) were selected to evaluate the relationship between body weight, body size trait indicators, serum reproductive hormones, and biochemical indicators. The results showed that serum estradiol (E2), glucose (GLU), and triglyceride (TG) concentrations, together with pubic spacing and abdominal circumference were significantly higher in high-yielding geese (P < 0.01), whereas the opposite was true for neck circumference, neck length, and tibial circumference. In addition, the serum testosterone (T) concentration and body weight were higher in high-yielding geese (P < 0.05). Neck circumference and neck length were negatively correlated with E2 and TG (P < 0.01); while pubic spacing and abdominal circumference were positively correlated with E2, GLU, and TG (P < 0.01), the highest correlation coefficient was 0.777 between TG and pubic spacing; T was also strongly associated with neck circumference (P < 0.01). In conclusion, high-yielding Wulong geese can be selected through neck circumference, neck length, pubic spacing, and abdominal circumference.
ISSN:0032-5791
1525-3171
DOI:10.1016/j.psj.2021.101618