PIT1 Gene Polymorphisms and Chicken Growth Traits
Author Information
Author(s): Nie Qinghua, Fang Meixia, Xie Liang, Zhou Min, Liang Zhangmin, Luo Ziping, Wang Guohuang, Bi Wensen, Liang Canjian, Zhang Wei, Zhang Xiquan
Primary Institution: South China Agricultural University
Hypothesis
The study evaluates the effects of PIT1 gene polymorphisms on chicken growth, carcass, and fatty traits.
Conclusion
Polymorphisms of the PIT1 gene and their haplotypes were associated with chicken growth traits but not with carcass and fatty traits.
Supporting Evidence
- MR1 was significantly associated with shank diameters at 84 days.
- MR2 was significantly associated with body weight at 28 and 42 days.
- MR3 was significantly associated with average daily gain at 4–8 weeks.
- MR4 was significantly associated with shank length at multiple time points.
- MR5 was significantly associated with body weight at 21 and 35 days.
Takeaway
This study found that certain changes in the PIT1 gene can help chickens grow better, but they don't affect how much meat or fat they have.
Methodology
Five polymorphisms of the PIT1 gene were genotyped in a full sib F2 resource population to evaluate their effects on various growth traits.
Limitations
The study did not find significant associations between the PIT1 gene polymorphisms and carcass and fatty traits.
Participant Demographics
The study involved a full sib F2 resource population derived from crosses of White Recessive Rock males and Chinese Xinghua females.
Statistical Information
P-Value
0.0252, 0.0390, 0.0400
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website