Dissertation
Dissertation > Agricultural Sciences > Livestock, animal medicine,hunting,silkworm,bee > Poultry > Chicken > Feed and nutrition

Effect of Vc and Chinese Herbal Medicines As Feed Additives on Reproductive Performance in Cockerel in Summer

Author TanQianHong
Tutor ZhangZhaoWang
School Gansu Agricultural University
Course Animal Genetic Breeding and Reproduction
Keywords Vitamin C Chinese medicine Chemical additive cockerel Reproduction performance Seminal fluid quality
CLC S831.5
Type Master's thesis
Year 2010
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This article in view of plants the cockerel to reproduce the production actual problem which the performance drops in the hot summer, 30只40 week age body weights which is approximately the 2250g parents generation of peaceful card Red Indian cockerel, divides into three groups stochastically, which are the Vc group, the Chinese medicine group and the control group, each group of 10, the experimental group is fed in the foundation date grain which is increased 250mg?kg Vc, 1.5% Chinese medicine separately (obscene Yang Huo, cuscuth japonica, licorice, Chinese cassia tree, merinda officinalis and so on), the control group only is fed the foundation date grain. Entire experimental period mainly observes and analysis target is: the seminal fluid pollution rate, the seminal fluid quality(Picks the fine Picked quantity, sperm living rate, the sperm density, the sperm abnormal rate), the breeding egg rate of fertilization, the sperm frost resistance(Individual, group), the body weight testicle heavy cockscomb with to pick fine aspects again and so on quantity relevance as well as blood plasma reproduction hormone conducts, for the purpose of discussing Vc and the Chinese medicine chemical additive plants the cockerel reproduction performance to the summer the influence, plants cockerel’s seminal fluid quality by the time from the different angle improvement, plants the cockerel reproduction performance for the summer the enhancement and the genetic resources protection provides the technical support. The concrete test result is as follows:1. From the end of the raising period in advance after the experiment the 15d control group cockerel’s average to the appetite to drop 7.4g.d-1/each chicken。2. In feeding the chemical additive entire experimental period, the Vc group’s average pollution rate reduced 13.9% compared to control group’s average pollution rate, the Chinese medicine group’s average pollution rate reduced 9.9% compared to control group’s average pollution rate.3. When trial period 60d compare to raised the end of the advanced period, the Vc group each chicken’s effective sperm number (effective sperm number = picks fine quantity * sperm density * living rate) is 538,000,000, the Chinese medicine group each chicken’s effective sperm number is 541,000,000, the control group each chicken’s effective sperm number is 255,000,000. Thus it may calculate that Vc group each chicken’s effective sperm number compared to control group each chicken’s effective sperm number many 283,000,000, Chinese medicine group each chicken’s effective sperm number compared to control group each chicken’s effective sperm number many 286,000,000. Loses fine quantity each share to guarantee that every day has 10,000,000 effective sperms, the Vc group and the Chinese medicine group each only plants the cockerel to be possible to increase 28 with to match the hen.The Vc group and the Chinese medicine group’s rate of fertilization enhanced 2.0% and 4.0% separately compared to the control group a, the difference is remarkable(P﹤0.05).4. Add 1g/L taurine to the fluid to have better protective function to sperm’s freezing ,after the Chinese medicine group’s frozen, sperm activity is generally higher, 100% kind of cockerel’s frozen sperm activity is above 0.3.5. The cockerel’s testicle is again heavy with the cocks comb, the testicle with the fine picked quantity to assume the varying degree again related.Compare with raised the time, experimented when 60d the Vc group cockerel blood plasma testosterone density in advance increased 0.31ng. L-1, the difference is remarkable(p<0.05), the Vc group cockerel blood plasma pressed the lutein density to increase 0.45 mIU.mL-1, the difference is remarkable(p<0.05), the Vc group cockerel blood plasma prolan density increased 0.13 mIU.mL-1, the difference is remarkable; (p<0.05) The Chinese medicine group cockerel blood plasma testosterone density increased 1.47 ng. L-1, the difference is extremely remarkable(p<0.01), the Chinese medicine group cockerel blood plasma pressed the lutein density to increase 1.62mIU.mL-1, the difference is extremely remarkable(p<0.01), The Chinese medicine group cockerel blood plasma prolan density increased 0.88mIU.mL-1, the difference is extremely remarkable(p<0.01).Thus it can be seen, add Vc and the Chinese medicine chemical additive to the date grain plants the cockerel reproduction performance to the summer the enhancement to have obviously the promoter action. In the burning hot summer, plants the cockerel to pick the appetite to be normal,“hypothalamic - pituitary gland - testicle axis”the function obtained the full display, thus improving plants cockerel’s seminal fluid quality, the breeding egg the rate of fertilization is enhanced. In the actual production, suggested cockerel’s the date grain in the summer, add certain Vc and the Chinese medicine chemical additive to the foundation date grain, thus enhancing cockerel’s reproduction performance, increasing the chicken house the economic efficiency.

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