CAJ | 학술논문

本试验旨在研究饲粮锌水平对育成期水貂生长性能及血清生化指标的影响。选取60日龄健康雄性水貂75只，随机分为5组，每组15个重复，每个重复为1只水貂，各组分别饲喂在基础饲粮中添加0（Ⅰ组）、50（Ⅱ组）、100（Ⅲ组）、300（Ⅳ组）、600 mg/kg （Ⅴ组）锌的试验饲粮。预试期7 d，正试期60 d。结果表明：1）60、75、90、105和120日龄时各组之间体重差异不显著（P＞0．05）；76～90日龄时Ⅲ、Ⅳ和Ⅴ组平均日增重显著高于Ⅰ和Ⅱ组（P＜0．05）；106～120日龄时Ⅲ组平均日增重显著高于Ⅰ、Ⅱ和Ⅴ组（ P＜0．05）。2）Ⅳ组血清白蛋白含量显著高于Ⅰ和Ⅱ组（P＜0．05）；Ⅳ组血清总蛋白和球蛋白含量显著高于Ⅰ、Ⅱ和Ⅴ组（P＜0．05）；Ⅳ组血清免疫球蛋白A含量显著高于Ⅰ、Ⅱ和Ⅲ组（ P＜0．05）；Ⅳ组血清免疫球蛋白G含量显著高于Ⅴ组（ P＜0．05）；各组血清免疫球蛋白M含量差异不显著（ P＞0．05）。3）Ⅰ和Ⅱ组血清尿素氮含量显著高于Ⅲ、Ⅳ和Ⅴ组（ P＜0．05）；Ⅲ和Ⅳ组血清丙氨酸氨基转移酶和天门冬氨酸氨基转移酶活性显著高于Ⅰ和Ⅴ组（ P＜0．05）。4）Ⅲ、Ⅳ组血清碱性磷酸酶活性显著高于Ⅰ和Ⅴ组（ P＜0．05）；各组血清乳酸脱氢酶活性无显著差异（P＞0．05）。5）Ⅴ组血清锌含量显著高于其他各组（P＜0．05）；Ⅴ组血清磷含量显著低于Ⅰ和Ⅱ组（ P＜0．05）；各组血清钙含量无显著差异（ P＞0．05）。由此可见，饲粮中添加100 mg/kg的锌能够有效提高育成期水貂的生长性能，而饲粮中添加300 mg/kg的锌血清中蛋白质相关指标含量及锌相关酶活性最高，有利于提高水貂机体免疫力。
본시험지재연구사량자수평대육성기수초생장성능급혈청생화지표적영향。선취60일령건강웅성수초75지，수궤분위5조，매조15개중복，매개중복위1지수초，각조분별사위재기출사량중첨가0（Ⅰ조）、50（Ⅱ조）、100（Ⅲ조）、300（Ⅳ조）、600 mg/kg （Ⅴ조）자적시험사량。예시기7 d，정시기60 d。결과표명：1）60、75、90、105화120일령시각조지간체중차이불현저（P＞0．05）；76～90일령시Ⅲ、Ⅳ화Ⅴ조평균일증중현저고우Ⅰ화Ⅱ조（P＜0．05）；106～120일령시Ⅲ조평균일증중현저고우Ⅰ、Ⅱ화Ⅴ조（ P＜0．05）。2）Ⅳ조혈청백단백함량현저고우Ⅰ화Ⅱ조（P＜0．05）；Ⅳ조혈청총단백화구단백함량현저고우Ⅰ、Ⅱ화Ⅴ조（P＜0．05）；Ⅳ조혈청면역구단백A함량현저고우Ⅰ、Ⅱ화Ⅲ조（ P＜0．05）；Ⅳ조혈청면역구단백G함량현저고우Ⅴ조（ P＜0．05）；각조혈청면역구단백M함량차이불현저（ P＞0．05）。3）Ⅰ화Ⅱ조혈청뇨소담함량현저고우Ⅲ、Ⅳ화Ⅴ조（ P＜0．05）；Ⅲ화Ⅳ조혈청병안산안기전이매화천문동안산안기전이매활성현저고우Ⅰ화Ⅴ조（ P＜0．05）。4）Ⅲ、Ⅳ조혈청감성린산매활성현저고우Ⅰ화Ⅴ조（ P＜0．05）；각조혈청유산탈경매활성무현저차이（P＞0．05）。5）Ⅴ조혈청자함량현저고우기타각조（P＜0．05）；Ⅴ조혈청린함량현저저우Ⅰ화Ⅱ조（ P＜0．05）；각조혈청개함량무현저차이（ P＞0．05）。유차가견，사량중첨가100 mg/kg적자능구유효제고육성기수초적생장성능，이사량중첨가300 mg/kg적자혈청중단백질상관지표함량급자상관매활성최고，유리우제고수초궤체면역력。
This experiment was conducted to study the effects of dietary zinc level on growth performance and serum biochemical indices of growing minks. Seventy five 60-day-old healthy male minks were randomly divid-ed into 5 groups with 15 replicates per group and 1 mink per replicate. Minks in the 5 groups were fed the ex-perimental diets supplemented with 0 ( group Ⅰ) , 50 ( group Ⅱ) , 100 ( group Ⅲ) , 300 ( group Ⅳ) and 600 mg/kg ( groupⅤ) zinc, respectively. There was a 7-day adaptation period and a 60-day experimental pe-riod. The results showed as follows:1) there was no significant difference in body weight among all groups at 60, 75, 90, 105 and 120 days of age ( P>0.05);the average daily gain in groupsⅢ,ⅣandⅤwas signifi-cantly higher than that in groups Ⅰ and Ⅱ during 76 to 90 days of age ( P<0.05) , the average daily gain in group Ⅲ was significantly higher than that in groupsⅠ,Ⅱ andⅤ during 106 to 120 days of age ( P<0.05) . 2) The serum albumin content in group Ⅳ was significantly higher than that in groups Ⅰ and Ⅱ ( P<0.05) , the serum total protein and globulin contents in group Ⅳ were significantly higher than those in groups Ⅰ, Ⅱand Ⅴ (P<0.05), the serum immunoglobulin A content in group Ⅳ was significantly higher than that in groups Ⅰ, Ⅱ and Ⅲ (P<0.05), the serum immunoglobulin G content in group Ⅳ was significantly higher than that in group Ⅴ (P<0.05), there was no significant difference in serum immunoglobulin M content a-mong all groups ( P>0.05) . 3) The serum urea nitrogen content in groups Ⅰ and Ⅱ was significantly higher than that in groups Ⅲ, Ⅳ and Ⅴ (P<0.05), the serum aspartate amino transferase and alanine aminotrans-ferase activities in groups Ⅲ and Ⅳ were significantly higher than those in groups Ⅰ and Ⅴ (P<0.05). 4) The serum alkaline phosphatase activity in groupsⅢandⅣwas significantly higher than that in groupsⅠandⅤ ( P<0.05) , there was no significant difference in serum lactic acid dehydrogenase activity among all groups (P>0.05). 5) The serum zinc content in group Ⅴ was significantly higher than that in other groups (P<0.05) , the serum phosphorus content in group Ⅴ was significantly lower than that in groups Ⅰ and Ⅱ ( P<0.05), there was no significant difference in serum calcium content among all groups (P>0.05). In conclu-sion, dietary supplemented with 100 mg/kg zinc can improve the growth performance of growing minks. Diet-ary supplemented with 300 mg/kg zinc can get the highist protein metabolism related indices contents and zinc related enzyme activities, and it can be propitious to improve the immunity of minks.