混菌發(fā)酵全穗玉米及其對(duì)母豬繁殖性能的影響.pdf

1、 獨(dú) 創(chuàng) 性 聲 明 本人聲明所呈交的論文是我個(gè)人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作及取得的研究成果。盡我所知，除了文中特別加以標(biāo)注和致謝的地方外，論文中不包含其他人已經(jīng)發(fā)表或撰寫(xiě)過(guò)的研究成果， 也不包含為獲得安徽農(nóng)業(yè)大學(xué)或其它教育機(jī)構(gòu)的學(xué)位或證書(shū)而使用過(guò)的材料。 與我一同工作的同志對(duì)本研究所做的任何貢獻(xiàn)均已在論文中作了明確的說(shuō)明并表示了謝意。 研究生簽名： 時(shí)間： 年 月 日

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3、 日 第一導(dǎo)師簽名： 時(shí)間： 年 月 日 corn with ear (seeds, coating and core), and clear its effects on reproductive performance of sows. The results show as follows: Test 1: Research on the best fermentative

4、 technology of fresh corn thick slurry feed with multi-strains The experiment was designed with The saccharomyces cerevisiae , bacillus subtilis and plant lactobacillus to fermented the prepared fresh corn thick slurry f

5、eed. The number of viable cells after fermentation was used as an indication, to explore the effects of fermentative parameters including fermentative time, temperature, inoculation amount, proportion of vaccination a

6、nd material-water ratio on the value of fresh corn feed by single factor and four factors with three levels for L9(34) orthogonal experiments. The result shows as follows: the optimal condition for mixed strains fermen

7、ted the fresh corn thick slurry feed was by 6% of Inoculation amount, 3:3:4 of proportion of strains, 2.5:1 of material-water ratio, 37℃ of fermentative temperature, 10 days of fermentative time, and under these circu

8、mstances, the effect of fermentation has significantly increased, the crude protein content increased to 12.51%, the crude fiber content decreased to 16.88%, the lactic acid and biomass content increased to 4.3%, 68.7

9、× 107cfu/ml. Test 2: Effect of Dietary Fermented Corn with Ear Feed on Reproductive Performance of Sows One hundred and twenty late gestation(81 to 85 d) sows with the same parity were randomly divided into 4 grou

10、ps with 3 repeat per group and 10 sows per repeat. In experimental groups, the mixed fermented corn coat to core pulp feed was fed for sows by different proportion replace material corn as: 10%, 15% and 20% replacement

11、 group, respectively, while the control group was fed with based diet. The pre breeding of the test were 10 days, and the durations were 80 days. The results shows as follows:1）compare with control group, the score of

12、 sow body condition at weaning in 15% group was significantly improved (P<0.01). The normal estrus and fecundation rates in experimental groups were 90.00% and 100.00%, respectively. 2) Compare with control group,t

13、he weight of piglets at weaning, average daily gain and score of piglet skin development condition in experimental groups were significantly improved (P<0.01); diarrhea rate showed a decreased tendency. 3) Compared

14、 with control group, feeding fermented corn coat to core pulp feed replace material corn has a significant effect on content of immunoglobulin G in colostrums (P<0.05), moreover, the content of milk protein, milk

15、fat and serum antioxidative indexes of the colostrums also had increased tendency. In 20% group, the number of E.coli and Salmonalla were significantly lower than those in control group (P<0.05), nevertheless, the n

16、umber of Lactubacillus was significantly higher (P<0.05). These results prove that feeding fermented corn coat to core pulp feed replace material corn can improve intestinal microorganisms and healthy conditions of

17、pigs; moreover, it can improve reproduction performance of sows and growth performance of suckling piglets. Keywords: mixed fermentation, fermented corn with ear feed, sow, suckling piglet, reproductive performance