Modeling of growth curve in farm bred broiler rabbits in organized rabbitry

Abstract

Rabbit rearing across the Indian subcontinent is growing rapidly. Growth traits are important parameters on which rabbits are being evaluated. Mathematical models have been tried to establish a relationship between body weight and time. Data spread over six years on the weekly body weight of Soviet Chinchilla and White Giant rabbits were collected and subjected to analysis for assessment of genetic parameters and factors which influence the weekly body weight. Three nonlinear growth models; Gompertz, Logistic, and Von Bertalanffy were fitted for both the breeds separately as well as collectively. The least squares mean for weekly body weights in rabbits from weaning to maturity showed an increasing trend. White Giant rabbits weigh higher than Soviet Chinchilla. The period and season of kindling had a significant influence on the weekly body weight of rabbits. The value of growth curve parameter k (an indicator of growth performance) was estimated to be higher for White Giant by all three models. All three models performed well with a high coefficient of determination values. However, Von Bertalanffy model fitted well for Soviet Chinchilla and Gompertz model for the White Giant as well as when both the breeds were fitted collectively.

Crossbreeding experiment on Indonesian local rabbits: the heterosis effect on growth performance

“…The growth parameters reported using the logistic model for Soviet Chinchilla and White Giant rabbits were higher than the estimated values of A, B, and K in this study (ranges of 476.06-943.35, 9.55-13.14, and 0.06-0.08, respectively) (Gupta et al, 2022). Comparing the estimated IA and IW for LL and FF animals, using the Gompertz model reported by Setiaji et al (2013), revealed that the estimates for FF animals were lower (41.76 and 465.21 g, respectively), whereas the estimates for LL rabbits were slightly higher (29.69 and 238.03 g, respectively).…”

Growth of Hyla NG maternal cross rabbits obtained from different males in the postembryonic period of ontogenesis

“…Світовий попит на кролятину зростає з року в рік [1], оскільки цей цінний і корисний продукт має важливе економічне значення -здатен суттєво забезпечити попит на м'ясну продукцію. Проте існує дуже обмежена кількість досліджень швидкості росту кролів, у яких розглядається ефект генетичних і негенетичних факторів [2].…”