TY  - JOUR
T1  - Comparison of Growth Curves of Four Breeds of Japanese Native Chicken, Onaga-Dori, Tosa-Jidori, Ukokkei and Hinai-Dori
AU - Tsudzuki, Masaoki AU - Bungo, Takashi AU - Shiraishi, Jun-ichi AU - Goto, Naoki AU - Goto, Tatsuhiko 
JO  - Journal of Animal and Veterinary Advances
VL  - 9
IS  - 9
SP  - 1362
EP  - 1365
PY  - 2010
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2010.1362.1365
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2010.1362.1365
KW  - Growth curve
KW  -Onaga-dori
KW  -Tosa-jidori
KW  -Ukokkei
KW  -Hinai-dori
KW  -Japanese native chickens
AB  - The objective of this study was to compare the growth curve parameters for body weight of Japanese native chickens (Onaga-dori, Tosa-jidori, Ukokkei and Hinai-dori) using a non-linear model, Gompertz function.  The data were collected from the four indigenous breeds together with two foreign breeds (White Plymouth Rock and Brown Leghorn) that were reared from 0 day old to 20 weeks of age.  Breed differences were observed in the growth parameters. The predicted mature weight of the Hinai-dori was heavier than the other three Japanese native breeds. Tosa-jidori was observed to be late maturing and lighter at maturity, while Ukokkei was shown to have a higher growth rate. The development of growth curves for indigenous breeds may be useful in selecting native Japanese chickens that have rapid growth at early ages.
ER  -