CAJ | 학술논문

选择不同比例民猪血统(民猪血统比例为1,1/2,1/4,1/8,0)的商品仔猪60头,在同一营养水平下,研究民猪血统对生长肥育猪生产性能和胴体特性的影响.结果表明,民猪与引入猪种杂交后,含不同比例民猪血统的杂种猪各阶段生产性能均显著高于民猪(P<0.05).综合考虑平均日增重和料肉比,生产性能表现的优劣顺序为:杜×大长猪、1/8民猪、1/4民猪、1/2民猪和民猪.结果显示,试猪在100 kg左右屠宰,1/2民猪、1/4民猪、1/8民猪的瘦肉率分别比民猪提高3.70%,7.23%和11.85%.眼肌面积分别提高32.35%,58.56%和57.79%,背部4点平均膘厚分别降低6.55%,17.38%和21.66%.杜×大长猪的生产性能和胴体特性与民猪及含民猪血统的杂种猪差异显著(P<0.05),随民猪血统比例的增加,杂种猪的屠宰率、瘦肉率和眼肌面积逐渐降低,背部4点平均膘厚、板油率和皮下脂肪率则逐渐增加.
선택불동비례민저혈통(민저혈통비례위1,1/2,1/4,1/8,0)적상품자저60두,재동일영양수평하,연구민저혈통대생장비육저생산성능화동체특성적영향.결과표명,민저여인입저충잡교후,함불동비례민저혈통적잡충저각계단생산성능균현저고우민저(P<0.05).종합고필평균일증중화료육비,생산성능표현적우렬순서위:두×대장저、1/8민저、1/4민저、1/2민저화민저.결과현시,시저재100 kg좌우도재,1/2민저、1/4민저、1/8민저적수육솔분별비민저제고3.70%,7.23%화11.85%.안기면적분별제고32.35%,58.56%화57.79%,배부4점평균표후분별강저6.55%,17.38%화21.66%.두×대장저적생산성능화동체특성여민저급함민저혈통적잡충저차이현저(P<0.05),수민저혈통비례적증가,잡충저적도재솔、수육솔화안기면적축점강저,배부4점평균표후、판유솔화피하지방솔칙축점증가.
Sixty different commercial pigs hybriding with different Min pig consanguinity (1, 1/2, 1/4, 1/8, 0) were used to reveal the effect of different consanguinity in Min pigs on performance and carcass characteristics of growing-finishing pigs fed with the same nutritive level. The result showed that the performance of 1/2,1/4,1/8 Min pigs was significantly higher than that of the purebred Min pigs (P<0.05). Considering the ADG and feed efficiency, the rank from high to low was D×(Y×L), 1/8 Min pig, 1/4 Min pig , 1/2 Min pig, and purebred Min pig group. For the 1/2, 1/4, 1/8 Min pig groups, the lean percentage was higher than purebred Min pigs by 3.70%, 7.23%, 11.85%, respectively. The loin area was higher by 32.35%, 58.56%, 57.79%, respectively, and the backfat thickness was lower by 6.55%, 17.38%, 21.66%%, respectively. In all, there was significant difference of performance and carcass characteristics between D × (Y × L) and purebred Min pigs or hybrid of Min pigs (P<0.05). With the increase of Min pigs' blood, the slaughter percentage, lean percentage and loin area decreased, and average backfat thickness, subcutaneous fat percentage and leaf fat percentage were increased.