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국산박류의 사료적 가치에 관한 연구 9 . 제독피마자박의 사료가치에 관한 시험
이규호,한인규,정천용 ( Kyu Ho Lee,In K . Han,Chon Yong Chung ) 한국축산학회 1978 한국축산학회지 Vol.20 No.2
This experiment was carried out using 440 broiler chicks to study the nutritive value of detoxicated castor bean meal for about 75 days when it was used in broiler rations. The castor bean meal used in this experiment was detoxicated by the method of autoclaving at 120℃ and 1㎏/㎠ pressure and then water treatment. The results obtained are summarized as follows: 1. The body weight gains were significantly different (P$lt;0.01) among treatments. Data revealed that the body gain was decreased as the level of castor bean meal increased in feed. The treatments 6, 10, 9, 2 and 3 containing the castor bean meal less than 5% in their rations were not significantly different with control group in body weight gain. 2. The weight gain of treatments 5 containing the castor bean meal up to 20% was significantly inferior to the ether treatments and some birds in this treatment have shown coma symptom during 1-2 weeks of age. 3. Feed required per ㎏ of body weight gain were significantly increased (P$lt;0.05) as the level of castor bean meal increased. However, among the treatments substituting castor bean meal for perilla oil meal or sunflower seed oil meal differences were not significant in feed efficiency. 4. The content of crude protein, crude fat and crude fiber of castor bean meal was 37.5%, 6.7% and 26.8%, respectively. Amino acid composition of castor bean meal was relatively superior to sunflower seed oil meal, similar to perilla oil meal and inferior to soybean meal. 5. It was found that the utilizability of dry matter, crude protein, crude fat and total carbohydrates of finisher diets were depressed as the level of castor bear meal increased in feeds. 6. The carcass rate was decreased (P$lt;0.05) in same trend as weight gain did and the carcass rate of treatment 5 was significantly inferior to the other treatments. 7. The values of thyroid gland weight, skin pigmentation score and serum cholesterol content were no significantly affected by the feeding castor bean meal.
국산박류의 사료적 가치에 관한 연구 8 . 피마자박의 제독처리방법에 관한 시험
김규호,한인규,정천용,정운익 ( Kyu Ho Lee,In K . Han,Chon Young Chung,U . I . Chung ) 한국축산학회 1978 한국축산학회지 Vol.20 No.2
This experiment was undertaken using 314 broiler chicks to study the detoxification methods of castor bean meal for about 100 days which was unused until today due to its serious toxic effect to the animal despite of its valuable protein content. In this experiment, 12 kinds of detoxification treatments of castor bean meal were compared by the biological test and nutrient content. The results obtained are summarized as follows: 1. There were no differences in general composition and amino acid content among the castor bean meals detoxicated by various treatments which were combined with autoclavings (0, 30, 60 minutes), HCl or NaOH treatment and water treatment. 2. In body weight gain of broilers, remarkable differences were found among the experimental diet groups which contained 12 kinds of detoxicated castor bean meals. Body weight gain was significantly improved by autoclaving process (P$lt;0.05) and water treatment (P$lt;0.05). Especially, the treatment 7 which contained the castor bean meal autoclaved at 120℃ and 1㎏/㎠ pressure for 60 minutes and then treated with water was superior to all of the other treatments, judging by the weight gain and simplicity of treatment. 3. The mortality of broilers for 4 weeks of experimental period was also decreased by the autoclaving and water treatment, and was not affected by HCl or NaOH solution treatment. Mortality was nil for the bird in treatment 5, 6 and 7. On the other hand, 94.4% of the chicks were died on the non treated castor bean meal diet. 4. No difference was obtained in hematocrit value and red blood cell number among treatments.