《中国畜牧兽医》 ›› 2017, Vol. 44 ›› Issue (8): 2342-2347.doi: 10.16431/j.cnki.1671-7236.2017.08.018

• 动物营养与饲料科学 • 上一篇    下一篇

酶解蛋白肽对生长育肥猪生长性能、血液生化指标及养分表观消化率的影响

崔家军1, 张鹤亮1, 张维金2, 张迪1, 李秀花1, 忻效福3   

  1. 1. 河北北方学院动物科技学院, 张家口 075000;
    2. 秦皇岛益尔生物科技有限公司, 秦皇岛 066000;
    3. 张家口市怀安县畜牧局, 张家口 076150
  • 收稿日期:2017-02-22 出版日期:2017-08-20 发布日期:2017-08-18
  • 通讯作者: 张鹤亮 E-mail:zhanghl5@hotmail.com
  • 作者简介:崔家军(1988-),男,河北南宫人,硕士生,研究方向:猪的营养与饲料,E-mail:cjj3529@126.com
  • 基金资助:

    "动物源性活性赤金蛋白肽"在生猪养殖中的应用技术研究(16226601D)

Effect of Protein Hydrolysate on Growth Performance,Blood Biochemical Indexes and Nutrient Apparent Digestibility in Growing-finishing Pigs

CUI Jia-jun1, ZHANG He-liang1, ZHANG Wei-jin2, ZHANG Di1, LI Xiu-hua1, XIN Xiao-fu3   

  1. 1. College of Animal Science, Hebei North University, Zhangjiakou 075000, China;
    2. Qinhuangdao Yier Biological Technology Co., Ltd., Qinhuangdao 066000, China;
    3. Animal Husbandry Bureau of Huai'an County, Zhangjiakou City, Zhangjiakou 076150, China
  • Received:2017-02-22 Online:2017-08-20 Published:2017-08-18

摘要:

本试验在生长育肥猪日粮中添加酶解蛋白肽T30,研究小肽对生长育肥猪的生长性能、血液生化指标及养分表观消化率的影响,并探讨其在生长育肥猪阶段的最适添加量。采用单因子随机试验设计。选取杜洛克猪×长白猪×大白猪三元商品猪300头,随机分为5组,每组4个重复,每个重复15头。Ⅰ组(对照组)饲喂基础日粮,Ⅱ~Ⅴ组在基础日粮中分别添加1%、2%、3%、4% T30。试验期30 d。结果显示:①Ⅲ组的平均日增重显著高于Ⅰ、Ⅴ组(P<0.05);Ⅲ组平均日采食量显著高于Ⅱ组(P<0.05),与其他组间差异均不显著(P>0.05)。②Ⅴ组总蛋白、球蛋白水平最高,显著高于Ⅱ组(P<0.05),但与其他各组间差异均不显著(P>0.05);Ⅱ组尿素氮水平显著低于其他各组(P<0.05)。③Ⅴ组干物质、粗蛋白质表观消化率最高,T30添加组钙、磷表观消化率均出现不同程度的下降。综上所述,在生长育肥猪阶段酶解蛋白肽的最佳添加量为1.796%,添加酶解蛋白肽可提高生长性能、降低料重比,提高血液总蛋白水平、球蛋白水平。

关键词: 生长育肥猪; 酶解蛋白肽; 生长性能; 血液生化指标; 养分表观消化率

Abstract:

This experiment was aimed to study the effects of protein hydrolysate on growth performance,blood biochemical indexes and nutrient apparent digestibility in growing-finishing pigs,and determine the optimum dosage of additions.300 Doroc pig×Landrace pig×Yorkshire pig crossbreeding commercial pigs were chosen and divided into five groups with four repeats per groups and 15 pigs per repeat.The pigs in group Ⅰ (control group) were fed with basal diet,others in groups Ⅱ to Ⅴ were fed basal diet with 1%,2%,3% and 4% T30 small peptide,respectively.The test lasted for 30 d. The results showed that:①The average daily gain (ADG) of group Ⅲ was significantly higher than groups Ⅰ and Ⅴ (P<0.05), the average daily feed intake (ADFI) of group Ⅲ was significantly higher than group Ⅱ, and had no significant difference with other groups (P>0.05). ②The total protein and globulin levels of group Ⅴ were the highest that significantly higher than group Ⅱ (P<0.05),and had no significant difference with other groups (P>0.05).The urea nitrogen of group Ⅱ was significantly lower than other groups (P<0.05).③The dry matter and crude protein apparent digestibility of group Ⅴ were the highest,and the Ca and P apparent digestibility were declined in T30 supplement groups. In conclusion,the optimum adding amount of protein hydrolysate of growing pig was 1.796%.It could improve the growth performance,decrease F/G,and increase the levels of total protein and globulin.

Key words: growing-finishing pigs; protein hydrolysate; growth performance; blood biochemical indexes; nutrients apparent digestibility

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