| This research is to improve the growth performance of piglets by three test. There aretwo test separately from changes in feeding patterns and nutritional additives to influencethe litter size of sow and the growth performance of birth weight of piglets and thegrowth performance of piglets in lactation. The third test is added probiotics to changedpiglets intestinal environment and reduce the incidence of disease, to improve theproduction performance of piglets.Test1Test chooses16sows that are the same breed and tyres and80days of pregnancy.Sows were randomly divided into4treatment group and each treatment group4repeatthat it is1sow. Test Ⅳ group is the control group and feeding based diet.Test Ⅰ, Ⅱ,Ⅲgroup was respectively added1000g/t，2000/t gand3000g/t Butafosfan in the diet. Trialperiod is68days which is from the80days of pregnancy and the end of28daysweaning piglets.Test296weaned piglets were randomly divided into4treatment group and eachtreatment group3repeat that is8piglets. Test Ⅳgroup is the control group and feedingbased diet. test1group: added keluosheng in the diet is100g/t (subtilis of BacillusBacillus PB6≥2x109cfu),2group: added keluosheng in the diet is200g/t (subtilisBacillus Bacillus PB6≥4x109cfu),3Group: added keluosheng in the diet is300g/t(subtilis Bacillus Bacillus PB6≥6x109cfu). Trial period is30days which is from the28days of piglets and the end of70days of piglets.Test3This is to know the input costs of2raising mode of pregnancy sow and affect of2raising mode of pregnancy sow on piglet growth performance by the network andjournals. And we were understanded how is operation the raising mode of electronicgroup.Test results showed that:1The number of sows farrowing in all of the test group were higher than those in thecontrol group. And the test2group was max and12.50, and differences significant (P≤0.05). The birth weight of litter in the experimental group was higher than the controlgroup, but the difference was not significant (P>0.05). Test3group was max (1.55kg).2The rate of weaned the survival of all of the test group besides test2group was higherthan the control group and differences significant (p≤0.05),and test2groups was lowest.the average weaning weight of piglets of all of the test group were higher than those ofcontrol group and differences of test1,2groups was significant (P≤0.05). But theaverage weaning weight of litter with the increasing of butalin was decreasing tendency. 3The average intake of test1group was higher than the control group, and total feedconsumption was18.84kg than the control group and significant (p≤0.05). Test2、3group compared with the control group although there are differences, but not significant(p≥0.05).4The weight of control group was maximum before test, but differences between thefour groups is not significant (p≥0.05). After the test, weight of test1、3group werehigher than the control group, while the test2group and control group in the sameweight, but the difference was not significant (p≥0.05). herefore, Bacillus subtilis PB6strain on piglet weight has increased tendency. The weight gain of all test group werehigher than the control group,but the difference is not significant (p≥0.05). And withthe dosage increased, The weight gain had increasing trend, but test2,3group not volumeincreases. The average daily gain of the experimental group were higher than the controlgroup,but the difference was not significant (p≥0.05). The average daily gain isbasically the same between test2group and3group and greater than test1group.Thediets consumption of each pig in experimental group is less than the control group,butthe difference is not significant (p≥0.05),and test2group is greater than t test1group,test3groups is minimal. The diets/weight ratio of test group were lower than controlgroup, and the experiment2,3groups have significant difference (P≤0.05).5The test group no dead pigs, while fatality of piglets in the control group was3pigs,their fatality rate is8.3%during the trial period. Escherichia coli in feces of all test groupwere lower than control group and the difference is significant (P≤0.05).And with theincrease of dosage,escherichia coli in feces was multiplicative decrease. Salmonella infeces of all all test group were lower than control group and the difference is significant(P≤0.05). The lactic acid bacteria and bifidobacteria in test group were higher than thosein the control group, and the difference is significant (P≤0.05) and the increase ofdosage was multiplicative increase.6protein digestibility of test1group was higher than the control group and the test2,3group and there were significant differences (P≤0.05). But the test2,3groupcompared with the control group, the protein digestibility was lower and the differencewas not significant (P>0.05).For the Ca digestibility, experimental group except for the1group were less than control group, but the difference was not significant (P>0.05),andthe test group1was higher than the control group, but the difference was not significant(P>0.05). The P digestibility of all test group were less than that of the control group, butthe difference was not significant (P>0.05).7The frastructure investment cost of VELOS is more333000yuan than the limit bar, butsows can provide more6.1weaned piglets and the mortality of piglet decreased3.83%ina year. |
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