| 1.Farm production performance can be improved through good temperature managementTo study the effect of temperature control management on the performance of farms.we use the well-controlled Jiafu,Guangfa farms and the poorly controlled Aiping and Guihuashan pig farms as the experimental subjects to conduct statistics and analysis of their annual production performance.The results show that good temperature management can effectively improve the farm production performance.A good temperature control farm management average farrowing rate significantly higher than the 12-month farm management poor temperature control,indicating good temperature control can improve farm management farrowing rate;The pig farms with poor temperature control management showed a significant drop in the delivery rate in September,October,November,December and January.The sow's early mating time for these months was May,June,July,August and September,which coincided with the hot season.It indicate that the hot climate has a significant effect on the rate of birth control in poorly controlled pig farms;there is no obvious seasonal change and time pattern in well-controlled farms,indicating that good temperature management can improve the impact of hot climate on the rate of farrowing.The 12-month average number of live birth in good temperature management farms was significantly higher than that in farms with poorly temperature controlled farms.It indicating that good temperature control management can effectively increase the litter size;The number of live birth in farms with poor temperature control in July,August,September,October,November,December and January dropped significantly.Among them,the July and August are hot seasons.The farrowing sows at September,October,November,December and January which early breeding time is May,June,July,August and September..It also belongs to the hot season,which indicates that the hot climate has bad temperature control.which indicates that the hot climate has a significant effect on the number of live birth in poor temperature-controlled pig farms;The well temperature controlled pig farms are not obviously seasonal change and temporal patterns,which indicating that a good temperature control system can reduce the impact of hot climate on the number of live birth.The 12-month average survival rate of the farm with well-controlled temperature control was significantly higher than that of farms with poor temperature control,which indicating that good temperature control management can effectively reduce the mortality rate of pig farms;poor temperature control management;The rate of death on the poor temperature control management farms has increased significantly in December,January,February,April and April,which indicating that there is a significant impact on the rate of death in the cold farms with poor temperature and temperature control;The good temperature management can improve the impact of cold weather on the rate of death and survival.The 12-month average nurse mortality rate of well temperature controlled pig farms was significantly lower than that of poorly-controlled pig farms,indicating that good temperature management can effectively improve the survival rate of pig farms;The nurse mortality rate in pig farms with poor temperature control management is higher at May June September October January,December,February and April.These months are the periods of hot,cold,and seasonal changes.The explanation is that high,low or temperature changes have a significant impact on the survival rate of nursery pigs in poorly controlled pig farms;The farms with well-controlled temperature control have no seasonal change and temporal patterns,indicating that good temperature control management can improve the impact of excessively high or low temperatures on the survival rate of nursery farms.The 12-month average nursery mortality rate of the well temperature controlled pig farms was slightly lower than that of farms with poor temperature control and management,which indicating that good temperature control management can help reduce the mortality rate at the nursery farms.At the same time,it wasn't effect the Death rate of fattening by seasonal change and temporal patterns in the farms with well-controlled temperature control or poor temperature control.The result show that fattening pigs had strong adaptability to the ambient temperature,and the temperature change had little effect on them.The number of weaned piglets(PSY)per sow per year for well temperature controlled pig farms was 5.8 pigs higher than that in poorly controlled pig farms,ie High sow production efficiency of 26.22% in sow area;At the same time,the number of hog pigs per year(MSY)per pig per year in well temperature controlled pig farms was 5.93 pigs higher than that in the poorly controlled pig farms,which the whole farm has a high production efficiency of 27.42%.2.Reasonable immunization program optimization can improve farm production performanceIn this paper,the Jinyuan farm was taken as the experimental object.According to the clinical manifestations and antibody test reports of pigs,a reasonable immunization program was optimized.Because this faim is a pseudorabies virus-negative,and the sow herds of pseudorabies vaccine antibody is 100%,the protection rate is well,the pseudorabies vaccine has not been adjusted;the positive rate of the foot-and-mouth disease vaccine antibody is 100%,so the foot-and-mouth disease vaccine is not available.Due to the unsatisfactory positive rate of Swine Fever(SF)and Porcine Circovirus(PCV-2)vaccine antibodies,the procedures for Swine Fever and Porcine Circovirus vaccines were adjusted.The SF vaccine was changed from the manufacturer.The sow group's Porcine Circovirus vaccine was changed from the follow-up to herd immunity And Piglet immunization time was adjusted from 28 days after birth to 14 days after birth.Before optimization,the positive rate of swine fever antibody in sow herds was 86.7%,the positive rate of pseudorabies antibody was 100%,and the positive rate of foot-and-mouth disease antibody was 100%;the positive rate of commercial herd swine fever antibody was 76%,and the positive rate of pseudorabies antibody was 68%.The positive rate of the antibody to the circovirus was 92%;the overall herd of pseudorabies was negative.After optimization,the positive rate of swine fever antibody in sow herds was 100%,the positive rate of pseudorabies antibody was 100%,and the positive rate of foot-and-mouth disease antibody was 96.7%;the positive rate of commercial swine's swine fever antibody was 100%,and the positive rate of pseudorabies antibody was 60%.The positive rate of the antibody to the circovirus was 100%;the overall herd of pseudorabies was negative.The results showed that the positive rate of anti-pseudorabies vaccine antibody in sow herds did not change,they were all 100%.The positive rate of commercial herd pseudorabies vaccine antibody was reduced to 60% from 68%;the positive rate of foot-and-mouth disease vaccine antibody was reduced from 100% to 96.7%.It was no obvious changed.The positive rate of swine fever vaccine antibody in sow herds increased from 86.7% to 100%.The positive rate of swine fever vaccine antibody in commercial herds increased from 76% to 100%;the positive rate of commercial swine circovirus vaccine increased from 92% to 100%At the same time,after the optimization of the immunization program,the delivery rate has increased greatly from an average of 82.49% to an average of 85.76%;the number of litters raised from 10.71 to 11.72;the mortality rate of the littermates reduced from 7.18% to 1.67%.There was no significant change in the death rate of commodity pigs in nurseries and fattening,from 1.43% to 1.49%,respectively,from 0.46% to 0.44%. |
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