논문 상세보기
pp.215-225
본 시험은 한우에서 연령에 따라 혈청성분들의 변화를 알아보기 위하여 한우 866두(거세 638, 비거세 228)에 대하여 혈청 농도를 분석하여 채혈시 일령을 독립 변량으로 하고 혈청 성분들을 종속변수로 하는 다항 회귀방정식으로 추정한 결과는 다음과 같다. 거세우나 비거세우 모두 같은 차수의 회귀방정식이 접합한 혈청 성분은 IGF- I (3차식) calium(1차식) 및 IP(1차식)이었고 거세우에서는 1차식이 적합하고 비거세우에서는 3차식이 적합한 혈청
This study was carried out to investigate the change of blood compositions by age in Hanwoo, and a total of 866 of Hanwoo, which consisted with 638 of steer and 228 of bulls, were used to measure serum concentrations. A multiple regression equation was estimated with collection age and blood composition as independent and dependent variables, respectively. Complicated regression equations for blood compositions in steer and bulls were IGF-I(cubic), calcium (linear), and IP(linear). Linear and cubic equations were fitted to testosterone in steer and creatinine in bulls, respectively. A cubic equation in steer and linear equation in bulls were fitted to HDLC. Equations of quadratic in steer and cubic in bulls were fitted to concentration of triglyceride, globulin, and A/G ratio. BUN was fitted by equations of cubic in steer and quadratic in bulls. TP and albumin were fitted by equations of quadratic in steer and linear in bulls. A cubic regression equation did not explain the change of cortisol by age in steer and bulls. A cubic regression equation did explain the change of glucose by age in steer, but not in bulls. Higher R-square values (R-SQUARE>0.1) were estimated to IGF-1, albumin, creatinine, Inorganic phosphorous(IP) and HDLC in steer, and testosterone, IGF-I, TP, albumin, glucose, creatinine, IP, and HDLC in bulls for the fitted regression equations of blood compositions. Therefore, IGF-I, albumin, creatinine, IP, and HDLC were regarded as comparatively large variation by age in steer and bulls.
