单宁添加剂对育肥羊生产性能、血清生化指标和养分消化率的影响

doi:10.6048/j.issn.1001-4330.2022.09.028

摘要/Abstract

摘要：

【目的】 研究单宁添加剂对育肥羊生产性能、血液生化指标和养分消化率的影响。【方法】 选择30只五月龄，体重为25~30 kg的育肥羊随机分成3组,每组10个重复。分别是空白对照组：A组，饲喂基础日粮；试验组：B组在基础日粮中添加10 g/d单宁，C组在基础日粮中添加15 g/d单宁。试验预饲期为7 d，正饲期为42 d，整个试验周期为 49 d。饲喂结束后，检测其生长性能、相关血清生化指标和营养物质表观消化率。【结果】 B组和C组的日增重都高于A组；与A组相比，B组和C组的谷丙转氨酶水平显著提高（P<0.05）；B组和C组的总蛋白、白蛋白、球蛋白、肌酐和葡萄糖等血清生化指标均无显著影响；与A组相比，B组的碱性磷酸酶含量显著提高（P<0.05），C组差异不显著；B组的粗蛋白表观消化率低于A、C两组（P>0.05），干物质、粗脂肪、钙和NDF等的表观消化率均无显著差异。【结论】 在育肥羊日粮中添加10、15 g/d单宁添加剂可以改善育肥羊的生产性能，对谷丙转氨酶、碱性磷酸酶、尿素和粗蛋白含量的影响较大。

关键词: 单宁; 育肥羊; 血清生化指标; 生产性能; 表观消化率

Abstract:

【Objective】 The aim of this study was to investigate the effects of tannin additives on performance and blood biochemical parameters in fattening sheep.【Method】 In the experiment， 30 fattening sheep aged five months and weighing 25~30 kg were randomly divided into three groups with ten replicates in each group. They were blank control group: group A， fed basal diet； experimental group: group B supplemented with 10 g/d tannin in basal diet and group C supplemented with 15 g/d tannin in basal diet. The prefeeding period of the trial was 7 days， the positive feeding period was 42 days， and the entire trial period was 49 days. At the end of feeding， their growth performance， closely related serum biochemical parameters and apparent digestibility of nutrients were measured. 【Result】 The daily gain of group B and C was higher than that of group A； compared with group A， the alanine aminotransferase level of group B and C was significantly increased （P<0.05）； the serum biochemical indicators such as total protein， albumin， globulin， creatinine and glucose of group B and C were not significantly affected； compared with group A， the alkaline phosphatase content of group B was significantly increased （P<0.05）， with no significant difference in group C； the apparent digestibility of crude protein of group B was lower than that of groups A and C（P>0.05）， and there were no significant differences in the apparent digestibility of dry matter， crude fat， calcium and NDF.【Conclusion】 The addition of 10 and 15 g/d tannin additives to the grain of fattening sheep days could improve the performance of fattening sheep and had a greater effect on the contents of alanine aminotransferase， alkaline phosphatase， urea and crude protein.

Key words: tannin; fattening sheep; serumbiochemical index; production performance; apparent digestibility

中图分类号:

S826

陈锡, 曾献存, 胡波, 刘彤, 戴丽颖, 南珊珊. 单宁添加剂对育肥羊生产性能、血清生化指标和养分消化率的影响[J]. 新疆农业科学, 2022, 59(9): 2318-2323.

CHEN Xi, ZENG Xiancun, HU Bo, LIU Tong, DAI Liying, NAN Shanshan. Effects of Tannin Additive on Performance and Serum Biochemical Parameters of Fattening Sheep[J]. Xinjiang Agricultural Sciences, 2022, 59(9): 2318-2323.

图/表 4

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项目 Item	含量 Content
原料组成Raw material composition/%
玉米Corn	56.5
棉粕Cottonseed meal	8
麸皮bran	10
豆粕Soybean meal	6
石粉Stone powder	0.5
食盐salt	1
苜蓿干草alfalfahay	16
预混料^①Premix	2
合计Total	100
营养成分^②Nutrients
粗蛋白质Crude protein（%）	15.62
消化能Digestible energy（MJ/kg）	12.64
钙Ca（%）	0.52
磷P（%）	0.37

项目 Item	含量 Content
原料组成Raw material composition/%
玉米Corn	56.5
棉粕Cottonseed meal	8
麸皮bran	10
豆粕Soybean meal	6
石粉Stone powder	0.5
食盐salt	1
苜蓿干草alfalfahay	16
预混料^①Premix	2
合计Total	100
营养成分^②Nutrients
粗蛋白质Crude protein（%）	15.62
消化能Digestible energy（MJ/kg）	12.64
钙Ca（%）	0.52
磷P（%）	0.37

项目 Item		试验组别 Test group
项目 Item	A组 Group A	B组 Group B	C组 Group C
初始重Initial weight（kg）	28.71±2.06	29.71±1.89	30.29±2.98
末重Final weight（kg）	35.1±1.85	36.14±3.18	37.4±3.02
日增重ADG（g/d）	152±15.14	153±38.69	169±13.62
日采食量ADFI（kg/d）	1.81±0.29	2.05±0.22	2.06±0.5
料重比F/G	11.86±0.87	11.58±0.62	11.55±0.74

项目 Item		试验组别 Test group
项目 Item	A组 Group A	B组 Group B	C组 Group C
初始重Initial weight（kg）	28.71±2.06	29.71±1.89	30.29±2.98
末重Final weight（kg）	35.1±1.85	36.14±3.18	37.4±3.02
日增重ADG（g/d）	152±15.14	153±38.69	169±13.62
日采食量ADFI（kg/d）	1.81±0.29	2.05±0.22	2.06±0.5
料重比F/G	11.86±0.87	11.58±0.62	11.55±0.74

项目 Item		试验组别 Test group
项目 Item	A组 Group A	B组 Group B	C组 Group C
谷丙转氨酶Glutamic-pyruvic transaminase（U/L）	16.59±3.3^b	22.04±3.16^a	21.55±2.46^a
总蛋白Total protein（g/L）	69.63±4.45	70.91±4.55	72.08±2.48
白蛋白Albumin（g/L）	35.53±2.74	37.16±1.60	36.45±1.81
球蛋白Globulin（g/L）	34.10±3.27	33.89±4.54	35.63±3.00
谷草转氨酶Glutamic oxaloacetic transaminase（U/L）	91.81±18.62	104.21±23.69	103.97±13.68
碱性磷酸酶Alkaline phosphatase （U/L）	263.86±86.69^b	327.86±78.86^a	273.83±65.97^b
尿素Urea（mmol/L）	3.91±0.82^c	4.69±0.51^b	5.60±0.49^a
肌酐Creatinine（umol/L）	50.71±4.89	53.57±8.24	47.83±6.43
葡萄糖Glucose（mmol/L）	5.23±1.61	7.06±1.55	6.60±1.83
甘油三酯Triglyceride（mmol/L）	0.30±0.08^ab	0.34±0.06^a	0.25±0.07^b