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RISS 인기검색어
- 검색키워드
- 저자 : 권항기 ( H K Kwon ) (검색결과 4 건)
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Broiler 사료의 유지첨가에 의한 사양시험과 경제성에 관한 연구
권항기 ( H K Kwon ),김춘수 ( C S Kim ),오세정 ( S J Oh ) 한국축산학회 1972 한국축산학회지 Vol.14 No.4
The experiments supported jointly by National Renderers Association, Far East Office and Korea Mixed Feed Association were conducted in three different poultry farms in or vicinity of Seoul, Korea. The objectives were to demonstrate the economic and nutritional value of using tallow as a feed ingredient in formulating the isocaloric and high energy broiler rations. It was also to determine the dietary level of tallow which is most feasible for the economy of broiler production in Korea. on an Isocaloric Basis The use of tallow to replace corn on an isocaloric basis upto 9 percent level did not improve the growth over the control chicks. Little significant difference was also observed in the feed efficiency of control group from those of the experimental groups of receiving 3, 6 and 9 percent tallow. This is also true for the values of among the experimental groups. Through the observations of these results, it is concluded that tallow as a feed ingredient can be added to the diet upto 9 percent level on an isocaloric basis without any deteriorating effects on it`s nutritive value. The addition of tallow to the place of corn on an isocaloric basis resulted in higher prices of the feeds of added tallow. Since little improvement on the feed efficiency was gotten by adding tallow, it is assumed that the economic broiler production is rather solely depended upon the price of tallow rather than the value of tallow itself. on a High Energy Basis On the contrary from that of isocaloric basis, all three experimental groups of receiving tallow are responded favorably over the control group. As for the weight at the end of 8 weeks of feeding, broilers receiving 7% tallow gained 10.0%, and 7.6% for the semibroilers over the control group. Cumulative feed efficiency for the broiler indicate that all the experimental groups receiving tallow improved to compare to that of control. For the groups receiving 5 and 7% tallow, the efficiency was 2.11 for the 5% and 2.04 for the 7% group compared to that of control 2.46 For the semibroilers, efficiency was 2.25 for the 5% and 2.21 for the 7% tallow compared to that of control 2.46. These differences from that of control were statistically significant. The analysis on the economic return indicate that the return for all experimental groups receiving tallow, except for the 7% tallow group of semibroilers, was greater than that of control. The best economic return was attained for the group receiving 5% tallow with increase of 8.4% return for the broiler and 6.1% for the semibroiler.
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"부로일러" 飼料에 있어 油脂 添加에 對한 飼養試驗과 經濟性 分析에 關한 硏究 : 同熱量 水準의 飼料에서 on an Isocaloric basis
吳世正,金春洙,權恒基 건국대학교 1971 學術誌 Vol.12 No.1
The usage of tallow to replace corn on an isocaloric basis upto 9 percent level did not improve the growth over the control chicks and no significant difference was. also observed in the feed efficiency of control group from those of the experimental groups of receiving 3,6 and 9 percent tallow. This is also true for the values of among the experimental groups. Through the observations of these results. it is concluded that tallow as a feed ingredient can be added to the diet upto 9 percent level on an isocaloric basic, without deteriorating it's untritive value. With an estimated price of tallow 70 won per kg. weight, the addition of tallow for the place of corn on an isocaloric basis resulted in higher prices of the feeds of added tallow. Since no improvement on the feed efficiency was affected by the addition tallow, it is assumed that the economy of broiler production is very much depended upon the cost of tallow rather than the value of tallow itself. Based on the current market price of corn 25.28 won per kg. weight, it is estimated that tallow as a feed ingredient is to bepriced at less than 65.73 won per kg. weight to bring about broiller production cost economically possible.
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'부로일러' 飼料의 油脂 添加에 대한 飼養 試驗과 經濟性 分析에 관한 硏究 (第2報) : 高熱量 水準 飼料에서
吳世正,金春洙,權恒基 건국대학교 1972 學術誌 Vol.13 No.1
The experiments were supported jointly by National Renderers Association, Far East Office and Korea Mixedfeed Association, and were conducted in three different poultry farms of In-san, Kun-kuk and So-shin in or vicinity of Seoul, Korea. The objectives were to demonstrate the economy and the nutritional value of using tallow as a feed ingredient in formulating the high energy broiler rations. It was also to determine the dietary level of tallow which is most feasible for the economy of broiler production in Korea. Per this purposes, the feeding trials were set fur four different dietary levels of 0, 3, 5 and 7 percent tallow, and the rations were formulated to meet all the known nutritional requirements for the optimum broiler production. The dietary energy levels were increased with increasing the dietary levles of tallow, and the levels of dietary protein were also increased accordingly to maintain constant theoretic calorie-protein ratios of 62 for the starter and 70 for the finisher rations. During the course of experiments, the comparative effects of four different rations were made upon weekly weight, feed consumption and fried convection. Other are studies on losses, carcass quality and finally upon the economy of broiler productions.
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