【作者】 张金枝； 任巧玲； 刘建新； 华卫东； 翁经强； 宋羽波；

【Author】 ZHANG Jin-zhi~1 REN Qiao-ling~(1,3) LIU Jian-xin~(1*) HUA Wei-dong~2 WENG Jing-qiang~2,SONG Yu-bo~1 1.College of Animal Science,Zhejiang University,Hangzhou,310029;2 Institute of Animal husbandry and Veterinrey Sciences,Zhejiang Academy of Agricultural Sciences;Hangzhou,310021;3.Institute of Animal husbandry and Veterinrey Sciences,Henan Academy of Agricultural Sciences;Zhengzhou,450002

【机构】 浙江大学动物科学学院； 河南省农科院畜牧兽医研究所； 浙江省农科院畜牧兽医研究所；

【摘要】 选择健康、体况基本相近、配种后25天的4～6胎的纯种杜洛克（Duroc）母猪32头,按胎次基本相近的原则分成4个组,每组8头母猪,研究含不同苜蓿草粉水平（0%、20%、40%和60%）的饲粮对母猪繁殖性能、血液生化指标和激素含量的影响。结果发现,20%、40%和60%的苜蓿草粉与无草粉组相比,产仔数和产活仔数均显著提高（P<0.05）。初生个体重随着苜蓿草粉添加水平的提高而降低（P<0.05）,但初生窝重以20%的苜蓿草粉组最高,与40%和60%苜蓿草粉水平差异不显著（P>0.05）。断奶仔猪的成活率和断奶窝重以20%苜蓿草粉最高。20%和40%的苜蓿草粉并未降低母猪在妊娠期的增重,但60%的苜蓿草粉使妊娠期增重降低（P<0.05）。随着苜蓿草粉水平的提高,妊娠期背膘的增厚减少。苜蓿草水平对母猪血液中血糖、总蛋白、白蛋白、球蛋白、尿素氮的影响差异不显著（P>0.05）。20%和40%的苜蓿草粉提高了血液中T₃和IGF-I的含量（P<0.05）。综上所述,以20%苜蓿草粉获得了最佳效果。更多还原

【Abstract】 Thirty-two health and uniform-sized Duroc sows with parity of 4-6 and on 25 days after mating were divided into 4 groups(n=8) according parity.Four levels of alfalfa meal(0%、20%、40%and 60%) were designed and their effects were investigated on reproductive performance,apparent digestibility, biochemical index and hormone level in serum,and the nutritional compositions of colostrum in sows. Inclusion of alfalfa meal in diets significant increased the litter size and alive litter size compared to no alfalfa meal diet(P<0.05),and the survival rate of piglets increased by 22.2,11.1 and 24.4%, respectively.The individual weight of firstborns decreased with the increase in alfalfa meal level (P<0.05).Litter weight was significantly higher in 20%alfalfa meal group(P>0.05).Survival rate of weaning pigs and weaned litter weigh were highest in 20%alfalfa meal group.Body weight gain of sows in lactation did not decrease when 20 or 40%alfalfa meal was fed,but the marked decline in sow body weight was found in 60%alfalfa meal group(P<0.05).The backfat thickness was decreased with increasing level of alfalfa meal.The effects of alfalfa meal level on apparent digestibility coefficients of dry matter,calcium and neutral detergent fiber were not significant(P>0.05),but apparent digestibility of crude protein and crude fat decreased significantly. Level of alfalfa meal did not have significant influence on the blood glucose,total protein,albumin, globulin and urea nitrogen in serum(P>0.05).Inclusion of alfalfa meal at levels of 20,40 or 60%all increased serum IGF-I level significantly(P<0.05).From the above results,it is concluded that inclusion of 20%alfalfa meal in diet may result in optimal effect on reproduction performance in sows.更多还原