http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
닭의 단백질 및 에너지요구량 결정에 관한 연구 2 . 단백질 및 에너지수준이 초생추의 영양소이용율 및 체조성에 미치는 영향
안병홍,한인규 ( B . H . Ahn,I . K . Han ) 한국축산학회 1981 한국축산학회지 Vol.23 No.6
This experiment was carried out to investigate the dietary protein and energy requirements of egg type starting chickens of single comb white leghorn. Three energy levels (2900, 2800, 2700㎉, ME/㎏) were employed and each energy level contained three protein levels of 20, 18, 16%. Digestion trial and slaughter analysis were conducted. The results obtained were as follows. 1. In the energy levels, dry matter utilization of starting chickens was significantly (p$lt;0.01) lower in the energy 2700㎉ level than in the energy 2800 and 2900㎉ levels. However, there were no significant differences between energy 2800 and 2900㎉ levels. Utilization of crude protein and carbohydrate decreased progressively with decreasing level of energy but no significant differences were found among energy levels. Utilization of crude fat and energy was significantly (p$lt;0.01) higher for the energy 2900 and 2800㎉ groups than for the energy 2700㎉ group. Utilization of dry matter (Y₁) and energy (Y₂) of starting chickens was found to be associated in a curvilinear manner with the energy levels (X) of ration. A regression equation: Y₁= - 326.99 + 0.2635X - 0.00004374X² Y₂= - 865.35 + 0.6408X - 0.0001095X² indicated that the maximum utilization of dry matter and energy occurred when the energy level was 2900㎉/㎏. 2. In the protein levels, dry matter utilisation was significantly (p$lt;0.01) higher for the protein 16% and 18% groups than for the protein 20% group. Crude fat utilization was significantly (p$lt;0.01) higher for the protein 20% group than for the protein, carbohydrate and energy was not affected by the protein levels. 3. Body composition of starting chickens was not greatly affected by the dietary energy levels. In the protein levels, body protein content of starting chickens decreased and body fat content increased progressively as the protein levels decreased. However, ash content was not affected by the dietary protein and energy levels. Content of body protein (Y₁) and body fat (Y₂) was associated in a curvilinear manner with the protein levels (X) of ration. A regression equation: Y₁ = 94.70 - 4.0392X + 0.1466X² Y₂ = 18.63 + 1.370X - 0.07499X² indicated that body protein content was high and body fat content was low when the protein level was 18% to 20%. According to the above results, it is concluded that protein levels of 18% to 20% and energy level of 2900㎉/㎏ would be suitable for optimal utilization of nutrients in starting chickens.
율무의 사료가치에 관한 연구 2 질소의 시비수준이 율무의 청예수량과 조성분 함량에 미치는 영향
안병홍,김병호,이병오 ( Beong Hong Ahn,Beong Ho Kim,Beong O Lee ) 한국축산학회 1976 한국축산학회지 Vol.18 No.2
To investigate the effect of the fertilization level of nitrogen on the grass height, green yield and chemical composition of Coix lacryma L., this experiment was carried out. The results obtained were as follow; 1. Grass height was 82-90㎝, 185-196㎝ and 186-201㎝ in the 2nd months and 3rd months after seeding and heading stage, respectively. Generally, the grass height increased as the fertilization level of nitrogen was increased. According to the cutting stage, grass height in the 3rd months after seeding and heading stage was higher (p$lt;0.05) than that in the 2nd cutting stage. 2. Green yield per 10 a. was 955-1835㎏, 3325-4608㎏ and 3815-5223㎏ in the 2nd months and 3rd months after seeding and heading stage, respectively. Green yield was greatly (p$lt;0.01) increased as the fertilization level of nitrogen was increased. According to the cutting stage, green yield in the 3rd months after seeding and heading stage was significantly (p$lt;0.01) higher than that in the 2nd months after seeding. 3. In the chemical composition on the dried basis, crude protein was 7.03-16.30% and the crude protein increased as the fertilization level of nitrogen was increased. According to cutting stage, the content of crude protein in the 3rd moths after seeding was lower than that in the 2nd months after seeding. The content of crude fiber was 26.42-37.21% and the crude fiber was not affected by the fertilization level of nitrogen. According to the cutting stage, the content of crude fiber in the 3rd months after seeding was 10% higher than that in the 2nd months after seeding. On the green basis, the content of crude protein was 1.76-3.10% and the crude protein was not affected by the fertilization level of nitrogen. According to the cutting stage, the content of crude protein in the 3rd months after seeding was lower than that in the 2nd months after seeding. The content of crude fiber was 5.02-8.93% and the crude fiber was not affected by the fertilization level of nitrogen.
고령토의 사료적가치에 관한 연구 2 . 고령토의 첨가수준이 병아리의 영양소이용율에 미치는 영향
안병홍,하정기,곽종형 ( B . H . Ahn,J . K . Ha,C . H . Kwack ) 한국축산학회 1979 한국축산학회지 Vol.21 No.4
This experiment was carried out to investigate the effect of kaolin supplementation from 1% to 6% on the nutrient utilization of egg type chickens of Babcock, The results obtained were as follows: 1. Dry matter utilization of chicken fed the different levels of kaolin was slightly improved as the levels of kaolin supplementation were hither, However, no statistical differences were found out on the dry matter utilization between treatments, 2. Crude protein utilization and nitrogen retention of chicken fed tire different levers of kaolin were significantly (P$lt;0.01) improved as the levels of kaolin supplementation were generally higher. Treatments supplemented with 5%, and 6% of kaolin had a higher crude protein utilization and nitrogen retention compared with those of other treatments. 3. NFE utilization was greatly (P$lt;0.01) improved and fat utilization was greatly (P$lt;0.01) decreased as the levels of kaolin supplementation were higher. 4. In general, crude fiber utilization was slightly improved as the levels of kaolin supplementation were higher, However it was found that there were a great differences between treatments.
닭의 단백질 및 에너지요구량 결정에 관한 연구 6 . 단백질 및 에너지수준이 대추의 영양소이용율 및 체조성에 미치는 영향
안병홍,한인규 ( B . H . Ahn,I . K . Han ) 한국축산학회 1982 한국축산학회지 Vol.24 No.6
This experiment was carried out to investigate the dietary protein and energy requirements of egg type White Leghorn pullets. Three metabolizable energy levels (2900, 2800, 2700㎉/㎏) were employed and each energy level contained three protein levels of 14, 13, 12%. Digestion trial and slaughter analysis were conducted. The results obtained were as follows. 1. In the energy levels, utilizability of dry matter of pullets was significantly higher in the 2800㎉ energy level than in the 2900㎉ and 2700㎉ energy levels but there were no differences between 2900㎉ and 2700㎉ energy levels. Utilizability of crude protein was significantly higher in the 2800㎉ energy level than in the 2900㎉ energy level but there were no differences between 2800㎉ and 2700㎉ energy levels. Utilizability of crude protein (X) of pullets was associated in a curvilinear manner with energy levels(X) of ration. A regression equation Y=-3899.2 + 2.8418X - 0.0005118X² indicated that maximum utilizability of crude protein occurred when the energy level was 2800㎉/㎏. Utilizability of carbohydrate was significantly higher in the 2800㎉ energy level than in the 2700㎉ energy level but no differences were found out between 2800㎉ and 2900㎉ energy levels. Utilizability of crude fat showed no differences among energy levels. Utilizability of metabolizable energy was significantly higher in the 2800㎉ energy level and that of ME(Y) was associated in a curvilinear manner with energy levels(X) of ration. A regression equation Y = -1615.5 + 1.2017X - 0.0002132X² indicated that maximum utilizability of ME occurred when the energy level was 2800㎉/㎏. 2. In the protein levels, utilizability of dry matter, crude protein, carbohydrate and energy showed no significant differences among protein levels. However, utilizability of crude fat was highest in the 13% crude protein level but there were no differences between 14% and 12% protein levels. 3. Body composition of pullets showed a tendency that body protein content was higher as the dietary energy levels increased and body fat content was higher as the dietary energy and protein levels decreased. However, ash content was not affected by the dietary energy and protein levels. According to the above results, it is concluded that 12% protein level and 2800㎉ metabolizable energy level would be suitable for optimal performance in egg type pullets.