재래돼지 순종돈과 재래돼지와 듀록 교잡종의 성장특성 평가를 위한 성장곡선 모수 추정

Abstract

This study was conducted to estimate the growth parameters of KK and KD and to comparetheir growth characteristics based on weight-age data of KK (36 females and 33 males), and KD(43 females and 45 males) from Sanwoori farm in Hongchun. Three models (von Bertalanffy,Gompertz and Logistic model) were considered for analyses. The estimated growth functions forfemale of KK, male of KK, female KD and male KD were Wt=140.97(1-10.228e-0.2597t)3, Wt=167-72(1-1.0015e-0.2309t)3, Wt=159.88(1-1.0663e-0.3072t)3 and Wt=181.63(1-1.0567e-0.2891t)3 for vonBertalanffy model, respectively. For Gompertz model, the growth functions estimated in female ofKK, male of KK, female KD and male KD were Wt=111.05e-5.8928e-0.4162t, Wt=140.62e-5.9117e-0.3676t, Wt=137.72e-6.2473e-0.4575t and Wt=152.02e-0.4551t, respectively. The animals with above order alsofound to have growth functions of Wt=75.01(1+52.6378e-0.9450t)-1, Wt=87.08(1+55.3626e-0.9024t)-1, Wt=100.17_1+58.9808e-1.0133t)-1 and Wt=106.61(1+64.7415e-1.0282t)-1 using a logistic model. However,the estimated average inflection points(ti) showing maximum growth rate in female of KK, maleof KK, female of KD and male of KD were 4.40±0.12, 4.86±0.22, 3.81±0.09 and 4.00±0.08month of age, respectively, using von Bertalanffy model. The Gompertz model derived the average ti of 4.32±0.11, 4.90±0.12, 4.03±0.69 and 4.11±0.06 month for female of KK, male of KK,female of KD and male of KD, respectively. Similarly, the logistic model also showed ti forfemale of KK, male of KK, female of KD and male of KD as 4.18±0.07, 4.41±0.05, 4.00±0.06and 4.03±0.04 months, respectively. In the study, the logistic model having a variable point ofinflection fitted the best for data of KK. However, the Gompertz model best fitted to KDconsidering a variable point of infection.