Comparative Analysis of Growth and Development of Parental and Commercial Pigeons of Mimas and Tianxiang 1 Strains
[Objective]This study aimed to clarify the growth and development of pigeon Tianxiang 1 and Mimas strain parent breeder and their commercial meat pigeons.[Method]The body weight and body size of male and female parental pigeons of Tianxiang 1 and Mimas were measured,and the growth and development of feathers on the back and ribs of commercial pigeons of Tianxiang I aged from 1 to 40 days were observed.In addition,Logistic,Gompertz and Bertalanffy models were used to fit the body weight and body size of Tianxiang 1 and European pigeon Mimas aged from 1 to 40 days.Subsequently,their growth and development rules were analyzed to explore the suitable growth models.[Result]There were no significant differences in body weight,chest width,and tibia length between the parental generation of female pigeons between Tianxiang 1 and Mimas strains,while there were significant differences in keel length,chest depth,and tibia circumference.However,for the parental generation of male pigeons,there were significant differences in weight and tibia circumference,while not in keel length,chest depth,chest width,and tibia length between Tianxiang 1 and Mimas strains.The differences were ex-tremely significant for body weight between Tianxiang 1 and European pigeon Mimas from 1 to 25 days of age(P≤0.01),but no significant difference at other time points.In this study,the three models were highly accurate to fit the body weight of the two meat pigeon strains(R2≥0.991).The best body weight growth model of Tianxiang 1 strain was Gompertz,while Bertalanffy was the best for European pigeon Mi-mas strain.The optimal growth models for the two strains were logistic.For the keel length,the Gompertz was the best for Tianxiang 1 pigeon strain,while Bertalanffy was the best for European pigeon Mimas strain.Furthermore,Bertalanffy was suitable for chest width and chest depth of both strains.Lastly,Gom-pertz,and Bertalanffy were the best to fit body skewlength for Tianxiang 1 and Mimas strains,respec-tively[Conclusion]There are differences in the growth and development of the two pigeons strains.Sci-entific and reasonable feeding scheme should be formulated according to the growth and development laws of pigeons in production.
pigeonbody weightbody sizefeather developmentfitting curvegrowth and development
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