早期断奶仔猪在哺乳期间增重变化规律的研究  

Study on Early Weaned Piglet （SEW） in Different Body Weight During lactation

作　　者：金俊杰[1] 金大春[1,2] 黄少林 

机构地区：[1]温州科技职业学院,浙江温州325006 [2]浙江省温州市畜牧兽医局,浙江温州325000 [3]浙江省温州桑农少林畜牧有限公司,浙江瑞安325216

出　　处：《温州科技职业学院学报》2015年第1期10-13,共4页Journal of WenZhou Vocational College of Science And Technology

基　　金：[项目名称]温州市科技计划项目（N20130002）

摘　　要：为研究21日龄早期断奶仔猪在哺乳期间个体相对增重变化规律，以某“国家生猪标准化示范场”118窝共1350头杜长大哺乳仔猪为试验对象，分别测定初生重、第1、2、3周龄个体重，计算各周间个体相对增重，并进行方差和相关回归分析。结果：哺乳仔猪在各周间个体相对增重差异极显著（P〈0．01），以第1周相对增重最快，第2周最慢；窝产活仔数与第1周间个体相对增重呈极显著的负相关（R=-0．765，P〈0．01），但与第2、第3周间个体相对增重无显著相关（R=-0．028、0．075，P〉0．05）；初生重与第1周间个体相对增重呈极显著的正相关（R=0．829，P〈0．01），但与第2周问个体相对增重无显著相关（R=0．176，P〉0．05），与第3周间个体相对增重呈极显著的负相关（R=0．373，P〈0．01）。经相关回归分析得出相应的回归方程，发现第1、3周间个体相对增重（自变量）对于窝产活仔数和初生重（依变量）达到极显著水准（P〈0．01），证明其有着真实的回归关系。综合分析认为，只要采取相应的技术措施，努力提高哺乳仔猪在第2周的个体增重，并选择较好的初生重及适宜的带仔哺乳数，能在一定程度上加快仔猪哺乳期的生长速度。In order to study the relative weight of individual variation of early Weaned piglet 21 days after birth during lactation, 1350 piglets in 118 litters are selected as test object, the weight of individual piglets born after 1 day, 1 week, 2weeks and 3weeks were tested respectively to calculate the individual relative weight each week, use variance and correlation regression analysis. The Results show that the different groups of Individual average weight of newborn piglet＇weaned piglets individual average weight and survival rate was significant difference （P 〈0.01）, the relative weight gain in first weeks and third weeks was significantly higher than the second week （P〈0. 01）; the number of live birth on Individual average weight of newborn piglet and individual average weight and survival rate at 21 days weaning piglets was significant negative correlation （R=-0.802, -0.851, -0.698, P〈0.01）,individual average weight of newborn piglets pigs on individual average weight and survival rate at 21 days weaning piglets was significantly positive correlation （R=0.837, 0.741; P〈0.01）;weaning weight of litter of piglets in 10-13 was significantly higher than that in 9 the following and 14 head the above （P〈0.01）. Research shows that, early weaned piglets relative weight gain in The first week of the fastest, the slowest second weeks;the number of live birth more piglets, the individual is smaller, the weight of early weaning is also lighter, the survival rate is low; the Individual average weight of newborn piglet more bigger, he weight of early weaning is also heavier, the survival rate is higher. Only through the scientific and reasonable method to control litters of suckling piglets in 10-13, can significantly improve Sow lactation amounti and the Individual weight of piglets and the litter weight weaning, obtain better economic benefits.

关 键 词：窝产活仔数 初生重 相对增重 早期断奶 哺乳期 杜长大仔猪 

分 类 号：S828.5[农业科学—畜牧学]