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- 저자 : 김내수 ( Bub Hoe Kim (검색결과 1 건)
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사료자원 개발에 관한 연구 ( 효모에 의한 발효우분의 사료화에 관한 연구 )
김법회,이택원,김내수 ( Bub Hoe Kim,Taeck Won Lee,Nae Soo Kim ) 한국축산학회 1979 한국축산학회지 Vol.21 No.6
As a series of the research for converting animal excreta into feedstuffs, feed substitutes by fermenting cattle waste was processed as follows: Active Dry Yeast and Yellow Koji were purchased at market, from which strains were separated. Dried cattle wastes mixed with same amount of corn flour were boiled with steam, inoculated with Active Dry Yeast and Yellow Koji, fermented at 30℃ for 48 hours and then dried in shade. In order to observe the optimum level of this feed substitute for mixed brans (barley bran and wheat bran was mixed at same rate in weight), 16 heads of rearing fattening piglets (12 of Landrace and 4 of tri-hybrids) were fed 4 different levels of experimental feed, such as 0, 10, 20 and 30 % by weight, for 4 months. The results obtained were summarized as follows: 1. Active Dry Yeast was classified as Saccharomyces cerevisiae and Yellow Koji as Aspergillus oryzae. 2. One gram of experimental feed was contained 5 to 6 × 10^9 cells of yeast. 3. Comparing the contents of raw cattle waste, the fermented experimental feed was shown increasing value of crude protein, crude fiber and crude ash while nitrogen free extract was decreased. 4. Fermented cattle waste contained more amino acid than that of raw material, especially lysine, methionine, histidine and arginine were doubled. 5. The weight of raw material was reduced by 5 - 6% during the process of fermentation. 6. During the first half period of fattening, substitution with experimental feed showed no bad effects upon fattening up to 30%. However 20 or 30% substitution of experimental feed showed remarkable decreasing value of body weight gain (p$lt;0.01) during the later half period of fattening. 7. No significance difference was observed in the amount of feed intake among the experimental lots. This seem to he that the fermented cattle waste had fair palatability for pig. 8. 10% substitution of experimental feed was observed better feed efficiency than that of control, bat 20% or 30% substitution was worse than control. Considering the above results, the fermented cattle waste could be substituted for various bran during the first period of fattening up to 30%, and later half period by 10%.
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