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Study On The Growth Diarrhea Of Early Weaning Of The Lamb And Ewes On Reproductive Performance

Posted on:2018-03-05Degree:MasterType:Thesis
Country:ChinaCandidate:J J ShanFull Text:PDF
GTID:2323330515964717Subject:The vet
Abstract/Summary:PDF Full Text Request
The sheep industry is one of the leading industries of animal husbandry development in our region.Especially in recent years,sheep industry expanded significantly,lamb and lamb market prices more attractive,and considerable economic benefit.However,the production efficiency of sheep husbandry in our region has not been effectively improved.The sheep in my area facing the actual situation.This study combines the actual production needs,On the current situation of raising sheep raising industry to do investigation and research,The effects of early weaning and early weaning on reproductive performance of ewes were studied.Promote the early weaned lamb technology,so that the lamb in the short term rapid growth fattening,Provide high quality lamb meat for the market,To obtain better economic benefits,but also conducive to the rapid recovery of the physical condition of ewes,is conducive to the production of ewes to enter the next estrus cycle.Can shorten the production cycle of ewes to help farmers save costs faster.In order to investigate the effect of feeding milk replacer on early weaned lambs,to improve the survival of early weaned lambs in the region,the disease resistance and the production of ewes into the next breeding cycle.The new feeding guidance is provided.In combination with experiments,the effects of early weaning on lamb growth,diarrhea and reproductive performance of ewes were studied in the following three aspects.First,from the effects of milk replacer on the growth index of different weaning age of lamb.30 date of birth similar to the lamb,were randomly divided into experimental group,test group 2 and control group,10 rats in each lamb;experiment I,II group and control group respectively in 30,45,60 lamb weaned.The results showed that: ?the average weight of each lamb was higher than that of the control group 1.555kg(P<0.01)and 0.6kg(P<0.05)when the lambs were 60 days old;?During the 30-45 days,the control group daily gain higher than the experimental group,but the difference was not significant(P>0.05);during 45-60 days of age,daily weight gain of test group is higher than that of the control group and the test group daily gain was significantly higher than the control group(P<0.05).?The test group 1,group 2 and control group the lamb survival rate were 90%,90% and 80%;the experimental results show that the feasible of lamb weaned at 45 days of age,the comprehensive analysis for the best weaning time.Secondly,the effect of weaning from lambs at different ages on body condition recovery and estrogen in serum was observed.The blood of lactating ewes and non lactating ewes was collected regularly during the experiment period to 60 days old.The effects of early weaning on the changes of serum estradiol,progesterone and recovery of ewes were analyzed and analyzed.At 30-45,45-60 days of age,breast-feedingewes and breast-feeding ewes group group progesterone had no significant difference(P>0.05).The experiment shows that the early weaning of lamb is beneficial to the production of ewes and the rapid recovery of body condition is beneficial for the production of ewes and the early estrus cycle.Fuethermore,to study the lamb diarrhea therapy.Diarrhea is the harm to the lamb growth of the most common,multiple,a higher rate of fatal diseases,development has been a serious threat to our region lamb industry,if improper operation or weaning,lamb feeding is not fine,often causing diarrhea of lamb.The application of antibacterial drugs in the treatment of diarrhea lamb is the technical measures taken by technical personnel.However,with a large number of long-term use of antimicrobial drugs,enhance the resistance of bacteria,many antibiotics have not reached the curative effect of antibiotics should be.In view of this,during the period from April 2016 to December in the experimental sites also choose a different age with symptoms of diarrhea of the lamb 30 treatment test,treatment trials were divided into 2 groups,respectively,with western medicine group,western medicine group,15 rats in each lamb.The combination of Chinese and Western medicine treatment group the main treatment of BAITOUWENG decoction,Benzylpenicillin potassium for injection,gentamycin sulfate,course of five days.Western medicine treatment group mainly medication levofloxacin,gentamycin sulfate,course of five days.The cure rate was100%,87%.Through the experimental study,early weaning lamb daily gain,the survival rate is higher than the lactating group lamb.Get in the local area with milk in early weaned lamb feeding feasible material.Study on early weaning Lamb on reproductive performance of ewes,that is conducive to early weaning ewes health rapid recovery,which is propitious to the production of ewes early entry into the next reproduction cycle.Comprehensive treatment of diarrhea of lamb in western medicine treatment group curative effect to the cure rate of 100%.Through the above experimental research to find suitable for production of lamb early weaning suitable local production conditions and promote the rapid growth of fattening lamb in the short term,to provide high quality lamb for the market,to achieve better economic benefits,but also conducive to the production of ewes health rapid recovery,promote the production of ewes early entry into the next production a reproductive cycle,to help farmers get rich faster and cost saving.
Keywords/Search Tags:lamb, early weaning, female reproductive performance, diarrhea
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