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RISS 인기검색어
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- 저자 : 이인형(I . H . Lee) (검색결과 6 건)
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당밀 - 요소 액상사료의 급여가 우유생산량 및 우유의 화학성분에 미치는 영향
한인규,하종규,이봉덕,김영길,이인형 ( I . K . Han,J . K . Ha,B . D . Lee,Y . K . Kim,I . H . Lee ) 한국축산학회 1975 한국축산학회지 Vol.17 No.1
To study the effects of molasses-urea liquid mixture supplementation on the milk yields, milk composition and feed utilization of lactating dairy cows, a series of two experiments was conducted during winter season of hay feeding period (Experiment I) and during summer season of green grass feeding period(Experiment II). Results obtained are summarized as follows: 1. Feeding molasses urea mixture in liquid form replacing 20% of concentrates resulted no changes in the production of milk, chemical composition of milk, feed intake and feed efficiency for milk production when this was fed either in the form of mixture with concentrates or in the form of liquid. 2. Present data revealed that 5.23 won of cash during hay feeding period and 4.34 won of cash during green grass feeding period could be saved by feeding 20% molasses urea mixtures instead of the same amount of concentrates. 3. No adverse effects or ammonium toxicity were detected by feeding urea upto 170 g daily when this was fed three times a day. It may be concluded from the above results that molasses urea mixture can be used to lactating dairy cows without any harmful effect.
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Broiler 용추에 대한 탤로의 첨가효과에 관한 연구
지규만 ( K M Chee ),이인형 ( I H Lee ),이영상 ( Y S Lee ),설동섭 ( D S Sul ) 한국축산학회 1968 한국축산학회지 Vol.10 No.1
This experiment was carried out to investigate the feeding effects of bleachable fancy tallow and to determine the proper supplementation level of tallow in broiler diets. Two trials involving lots (Control, Test 1, Test 2) of 120 male and female Nichols chicks with 2 replications fed 24% level of protein in each trial conducted for 8 weeks. Starters were given to chicks from 1 day of age to 4 weeks of age and finishers from 5 to 8 weeks of age. Tallow was supplemented to each experimental diets at the levels of 0, 4 and 8% in starter and 0, 5 and 10% in finisher replacing ground yellow corn and soybean oil meal. Calorie-protein ratios based on metabolizable energy were 57.9, 58.2 and 60.2 in starter and 60.9, 64.4 and 66.0 in finisher, respectively. No significant differences were observed in growth rate and feed intake. Feed conversion, however, was improved by 3.9 and 8.3% in female Test 1 and Test 2, respectively and by 4.9 and 6.3% in male Test 1 and Teat 2. The differences in feed conversion efficiency were significant only in male at the level of 5% but the difference between Test 1 and Test 2 and was not significant.
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이규호 ( K H Lee ),이인형 ( I H Lee ) 한국축산학회 1971 한국축산학회지 Vol.13 No.3
This experiment was conducted to assess the feeding value of Silk-Worm Excreta(SWE) in laying hen diet. For the experiment, a total of 225 hens of White Leghorn was used for 95 days after the total group entered 50% of egg production. The trial was divided into the five different treatments by replacing wheat bran to the silk-worm excreta by 0.0%, 3.0%, 6.0%, 9.0%, and 12.0% groups, respectively. The results obtained are summarized as follows; 1. Egg production in Control (0.0% SWE) and 3.0% SWE groups were 72.96% and 71.29%. respectively, and were higher than those of other groups. However, no statistical significance was found. 2. Feed conversion rate per kilogram of egg production was the best of 2.98 at 3.0% SWE group. No statistical significance was found between the treatments. 3. No difference was found among treatments of the experiment in average weight or Haugh Unit of eggs. 4. Egg Yolk Pigmentation tended to be thicker orange as increasing the amount of SWE in the diet. (p$lt;0.01). Heiman-Carver Yolk Color Rotor was compared and found optimum at 12.8 in the 3.0%SWE, and 14.2 in 6.0%SWE groups. 5. Gross income per hen for the 95 days of the experiment was 329.60 won for the control and 347.10 Won for the 3.0%SWE, respectively. Therefore, it may be concluded from the result that silk worm excreta could well be replaced for wheat bran in the ordinary diets for laying hen at 3.0% level.
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Broiler 용 사료의 어분과 대두박의 대치효과에 관한 시험
이규호 ( K H Lee ),이인형 ( I H Lee ) 한국축산학회 1971 한국축산학회지 Vol.13 No.3
This study was carried out to determine the level of substituting soybean oil meal for imported fish meal in broiler diets. For the experiment, the levels of 0, 2.0, 4.0, 6.0 and 8.0% of imported fish meal were added in the respective diets to replace soybean meal on an isocaloric and isonitrogeneous basis. In addition to these, 6.0% of domestic fish meal group was also designed to compare the effects of from that of imported fish meal. A total of 360 (mixed sex) broiler type of chicks were raised from the day of hatching for a period of 8 weeks. The results obtained are summarized as follows; 1. There was a significant decrease in body weight gain (p$lt;0.05) as the feeding level of the imported fish meal decreases. However, Duncan`s multiple range test shows no difference among the groups of 4.0%, 6.0%, 8.0% of imported fish meal and 6.0% of domestic. 2. Feed consumption decreased significantly (p$lt;0.01) as the fish meal feeding level decreases. However, there were no statistical significance in feed conversion rate among the treatments. 3. An economic analysis shows higher earning for the groups of 6.0% and 8.0% of imported fish meal, the gross incomes 143.35 and 141.41 per chick, but the statistical significance was shown among these experimental groups. 4. A separate test was also carried out by using a total of 120 broiler chicks to compare the difference between the effects of fish meal and that of Methionine. The experimental groups were designed; one to add 0.39% of Methionine in the diet without fish meal, and 8.0% of imported fish meal was used as a control. There were no significant differences in body weight gain or feed consumption, etc. However, the usage of fish meal for the place of DL methionine is shown to be more economical for the broiler production and this is due to the expensive present market price of Methionine. 5. In conclusion of the experiment, it was found possible to decrease the present usual proportion of imported fish meal 8.0%, down to 4.0% by substituting soybean oil meal at 28.5% in the broiler diets. And if Methionine is added to the broiler diets, it was found not necessary to mis any fish meal at all.
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