Study On The Effect Of Trace Elements In Dietary Of Lactation Sows

This experiment was to study in nursing sow fodder to add trace elements package is the production performance of lactation sows, lactation ability, the influence of the serum biochemical indicators and nutrient digestibility The test selected 120 healthy large white lactating sows whose firstborn times are close, P2 backfat and similar pre-production period are also close, and then they were randomly divided into three treatment groups, each group was divided into 40 repetition, and each repetition represented a sow, to ensure that each fetus repeated the same times. The control group fed based diet added package is not in the form of sulfate trace element premix, treatment group Ⅰ on the basis of basic diet added with the control group the same amount of package is trace elements, Treatment group double Ⅱ add control group, not package is trace elements in the form of sulfate Experiment began on the farrowing day, and weaned after 21 days of feeding, which indicated the end of the 21 day test.The results of the experiment showed that:1) Compared with the contrast group, Package is trace elements group and double the amount of trace elements to improve the average daily intake of lactation sows, improve nursing sow lactation amount, average daily gain, reduce feed milk than piglets, piglet diarrhea pi 0.05).2) Compared with the contrast group, Package is trace elements group and double the amount of trace elements on the reduction of lactation sows backglets rate, death rate of tao also had an improved effect, but affect the differences were not significant (P> fat loss, shortening nursing sow weaning estrus interval the influence of the differences were not significant (P> 0.05).3) Compared with the contrast group,Package is trace elements group significantly increased the content of trace elements in serum zinc and iodine (P< 0.05) 4) Compared with the contrast group, Package is trace elements group and double the amount of trace elements to enhance the influence of nursing sow apparent digestibility differences were not significant (P> 0.05).5) Compared with the control group, Each group’s influence on intestinal colony count differences were not significant (P> 0.05).6) Compared with the contrast group, the increase of experimental groups’ nutrients in milk-lactose, milk protein, milk fat was not significant (P> 0.05).