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RISS 인기검색어
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- 저자 : 나채영 ( Tae Song Koh (검색결과 1 건)
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증류수 혹은 0.25N NaClO2 에서 가열한 볏짚의 구성분의 변화와 가금에서의 영양소이용성
고태송,김해수,김성규,나채영 ( Tae Song Koh,Hae Soo Kim,Sung Gyu Kim,Chae Young Ra ) 한국축산학회 1985 한국축산학회지 Vol.27 No.12
In order to observe an effect of the components of rice straw on the utilization of nutrient in chicks, 100 g batches of rice straw were soaked in 800 ㎖ of either distilled water or 0.25N NaC10₂ and then autoclaved for 30, 60 and 120 minutes at the temperature of 135℃ and at the pressure of 3.2㎏/㎠(water or NaC10₂-30, 60 and 120-RS). Neutral detergent fiber(NDF), acid detergent fiber(ADF) and lignin of the washed and dried rice straw meal were analyzed. Hatched single comb White Leghrn male chicks were fed on a commercial chick mash for the first 10 days and five kinds of experimental diets which contained 17.0% of wheat bran(basal), cellulose(cotton meal), non-treated RS, water-30-RS and NaC10₂-30-RS, respectively, for the next 8 days. The water-30, 60 and 120-RS had lost 9.7, 12.1 and 13.3% of dry matter, respectively, while NaC10₂-30-RS had shown similar dry matter loss to those of water-30-RS though NaC10₂-60 and 120-RS had lost 1.5 times of dry matter compared with those of water-60 and 120-RS, respectively. And the dry matter loss of the water-RS or NaC10₂-RS was mainly originated from the extractable cell contents and hemicellulose of the non-treated RS. Birds fed water-30-RS diets showed higher body weight gain and lower feed conversion than those of birds fed non-treated and NaC10₂-30-RS diets during 8 days of experimental feeding. Also nitrogen balance and retention rate of birds fed water-30-RS was higher compared with those of birds fed non-treated and NaC10₂-30-RS. And digestibility of crude fat tended to be high in birds fed water-30-RS. The rate of metabolizable energy(MEn) to gross energy(GE) of birds fed non-treated RS, water-30-RS and NaC10₂-30-RS diets were 71.9, 72.9 and 70.4%, respectively, and energy intake per metabolic body size ㎏^(0.75)) were reached to 307.3, 296.2 and 291.4 ㎉ per day, respectively. And daily protein retention per ㎏^(0.75) were 1.647, 1.969 and 1.560 g, respectively. The MEn required for 1 g of protein retention was 30.56 ㎉ in the bird fed water-30-RS, which was lower than 36.90 and 37.56 ㎉ of birds fed non-treated and NaC10-30-RS, respectively. The results seems to indicate that non-treated rice straw had a substance or characters which affect the energy utilization or protein retention of diets and which will be eliminated by boiling in water.
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