육용 종계의 영양소 요구량에 관한 연구 2 . 육용 종계의 단백질 요구량에 관한 연구

이규호,한인규,이상진,강태홍,김강식 ( K . H . Lee,I . K . Han,S . J . Lee,T . H . Kang,K . S . Kim ) 한국축산학회 1985 한국축산학회지 Vol.27 No.3

In order to calculate the theoretical daily nutrient requirements for broiler breeder hens in relation to the weeks of age, estimates were made of daily needs for metabolizable energy, protein and amino acids using various prediction equations previously suggested by other researchers and compared each other and with the results of feeding trials. These were based on the average performance of hens on the production model calculated from the results of current studies by the author.

난용계(卵用鷄) 산란기(産卵期)의 선택채식(選擇採食)에 관(關)한 연구(硏究)

이규호,이덕수,Lee, K.H.,Lee, D.S. 한국가금학회 1994 韓國家禽學會誌 Vol.21 No.1

본(本) 연구(硏究)에서는 난용계(卵用鷄) 산란기(産卵期)의 self-selection diets를 개발하기 위한 기초자료를 얻기 위하여 각종 선택채식(選擇採食) 방법(方法)에 의해 산란기의 사료(飼料) 및 영양소(營養素) 섭취형태(攝取形態)를 조사하였다. 선택채식시험을 위하여 옥수수사료, 대두박사료, 밀기울사료, 대두박+어분사료 그리고 석회석사료를 각각 만든 후 단일배합사료(單一配合飼料)를 급여(給與)하는 대조구(對照區)(C)와 옥수수-대두박-석회석사료(飼料) 선택채식구($T_1$), 옥수수-대두박-밀기울-석회석사료(飼料) 선택채식구($T_2$), 옥수수-대두박+어분-밀기울-석회석사료(飼料) 선택채식구($T_3$)등 4개처리에 유색산란계(有色産卵鷄)를 처리당 10수씩 총 40수를 공시(供試)하여 31주령과 41주령에 2회에 걸쳐 각 1주일간의 본(本) 시험(試驗)을 실시한 결과(結果)는 다음과 같다. 1. 처리별 산란률(産卵率)은 73.02~79.83%로 큰 차이는 없었으며, 1일중 시간대별(時間帶別) 산란분포(産卵分布)는 처리간에 큰 경향의 차이없이 07-13시의 오전시간에 대부분의 산란되었다. 2. 각 처리 공히 계란형성일(鷄卵形成日)에는 비형성일(非形成日)에 비해 사료(飼料) 및 영양소(營養素) 섭취량(攝取量)이 많았으며, 계란형성일에는 선택채식구(選擇採食區)들이 대조구(對照區)에 비해 에너지와 단백질(蛋白質) 섭취량(攝取量)이 적었다. 3. 계란형성일의 시간대별 사료(飼料)와 에너지 및 단백질섭취량(蛋白質攝取量)은 대조구(對照區)가 10시 이후부터 22시까지 계속 증가하였으나, 선택채식구(選擇採食區)들은 10시 이후부터 22시까지 계속 증가하였으나, 선택채식구(選擇採食區)들은 10시 이후부터 증가하다가 19~22시의 마지막 3시간 동안의 섭취량(攝取量)이 감소하였다. 4. 계란 형성일의 시간대별 칼슘섭취량(攝取量)은 대조구(對照區)가 10시 이후부터 22시까지 계속 완만하게 증가하였으며, 선택채식구(選擇採食區)은 16시 이전까지는 대조구(對照區)보다 훨씬 적었으나 16시 이후에는 급격히 증가하여 대조구(對照區)보다 훨씬 많이 섭취(攝取)하였다. 결론적으로 난용계(卵用鷄) 산란기에는 영양소요구량(營養素要求量)의 주기적인 변화에 대처할 수 있는 복수선택채식사료(複數選擇採食飼料)의 개발이 필요하다고 생각된다. In order to get information for the improvement of feeding systems of egg-type layers, a dietary self-selection study was conducted. Corn diet, soybean meal diet, wheat bran diet, soybean meal+fish meal diet, and limestone diet were individually prepared for self-selection regime. Forty brown layers were offered either a control laying diet (C) or one of the 3 self-selection regime consisted of corn-soybean meal-limestone diet ($T_1$), corn-soybean meal-wheat bran-limestone diet ($T_2$) and corn-soybean meal+fish meal-wheat bran-limestone diet ($T_3$) for one wk each at 31 wk and 41 wk of age. In all dietary treatments, most of the eggs were laid from 0700 h 1300 h and hens consumed more feed, energy and protein on egg forming days than on non-forming days. On egg forming days, hens fed self-selection regime consumed less energy and protein than those fed control diet. On egg forming days, the consumption of feed, energy and protein increased continuously from 1000 h 2200 h in the control diet group but they decreased during the last 3 hours from 1900 h to 2200 h in self-selection regime groups. Up to 1600 h, calcium intake of the self-selection regime groups were much less than that of the control group but after that time, they increased markedly and were much more than that of the control group. The results of the study suggest that the practical self-selection regime for layers should be developed to meet the daily cyclic requirement for nutrients without consuming an excess energy and protein at certain times of the day.

육성기 사료의 양적 제한급여가 육용종계의 발육 및 산란성에 미치는 영향

이규호,김덕교 ( K . H . Lee,D . K . Kim ) 한국축산학회 1974 한국축산학회지 Vol.16 No.4

The effect of feed restriction during the rearing period on sexual maturity, performance in the laying house and economy was studied using 305 birds of broiler breeder pullet. During the rearing period(7∼24 weeks of age) feed was offered 80%, 75%, 70%, and 65% of feed consumption of full fed group. From 25 weeks of age all groups were fed ad libitum The results obtained are summarized as follows: 1. Body weight of 65% restricted group at 24 weeks of age was 73% of that of ad libitum group. At 45 weeks of age it was 85% of that of full fed group and not yet recovered completely. 2. Feed consumption of restricted groups from 25 to 50 weeks of age was somewhat more that of control group. However, there was no significant difference. 3. The degree of sexual maturity examined by weight of reproductive organ, length of fallopian tube and weight of comb and wattle at 21 weeks of age was extremely delayed with groups of feed restriction. The skeleton, however, almost equally developed between ad libitum and restricted groups. 4. The first egg production (days to 50% egg production) was delayed 1∼2 weeks with the restricted feeding. 5. Hen-day egg production was improved as the degree of restriction became intensive and 65% restricted group had the best result. The production of egg over 53g(hatchable egg) showed the same tendency. 6. Egg size was not affected by treatment. 7. Feed cost required for lkg egg production was the highest with the ad libitunz group and was decreased as the degree of feed restriction increased. The same tendency was obtained for the feed cost for 1 hatchable egg (over53g) Summarizing all of the da-ta, it was suggested that in broiler breeder the feed restriction should be below 65% of ad libitum group during the rearing period(7∼24 weeks of age), and the body weight at 24 weeks of age should be kept at the level of less than 70% of the control in order to get better performance during the laying period.

난용계(卵用鷄) 육성기(育成期)의 선택채식(選擇採食)에 관(關)한 연구(硏究)

이규호,이덕수,Lee, K.H.,Lee, D.S. 한국가금학회 1994 韓國家禽學會誌 Vol.21 No.1

본(本) 연구(硏究)에서는 난용계(卵用鷄) 육성기(育成期) 사료비(飼料費)를 절감(節減)할 수 있는 새로운 사양체계(飼養體系)를 개발하기 위한 기초자료를 얻기위하여 각종 선택채식방법(選擇採食方法)에 의해 육성기의 사료(飼料) 및 영양소(營養素) 섭취(攝取) 형태(形態)를 조사하였다. 선택 채식시험을 위하여 옥수수사료, 대두박사료, 밀기울사료 그리고 대두박+어분사료를 각각 만든 후 배합사료(配合飼料)를 급여하는 대조구(對照區)(C)와 옥수수-대두박사료 선택채식구($T_1$), 옥수수-대두박-밀기울사료 선택채식구($T_2$), 옥수수-대두박+어분-밀기울사료 선택채식구($T_3$)등 4개 처리에 유색난용계(有色卵用鷄) 초생추(初生雛) 380수를 공시(供試)하여 육성기간(育成期間)(0~20주령) 동안 시험(試驗)한 결과(結果)는 다음과 같다. 1. 선택채식구(選擇採食區)들의 육성기간중 평균체중(平均體重)은 대조구(對照區)에 비해 억제(抑制)되었으며 특히 성장초기에 현저히 억제(抑制)되어 대조구(對照區) 체중(體重)(100%) 대비 6주령에 70%, 14주령에 81%, 20주령에 88%로 억제(抑制)되었다. 2. 육성기간(育成期間)중 사료섭취량(飼料攝取量)은 대조구(對照區)(100%)에 비해 $T_1$은 86%로 적었으나 선택채식사료(選擇採食飼料) 중에 밀기울이 포함된 $T_2$(106%)와 $T_3$(112%)는 대조구(對照區)보다 오히려 많았다. 3. 선택채식구(選擇採食區)들의 육성기간(育成期間)중 에너지와 단백질(蛋白質) 섭취량(攝取量)은 선택채식방법(選擇採食方法)에 따라 차이가 있었으나 평균적으로 대조구(對照區)에 비해 각각 11%와 9% 정도 적었다. 4. 육성기간중 섭취(攝取)된 사료(飼料)의 대사에너지 수준(水準)은 모든 처리에서 성장기별(成長期別) 차이(差異)는 없었으며 대조구(對照區)(C)가 2,900 kcal/kg인데 비해 옥수수-대두박사료 선택채식구(選擇採食區)인 $T_1$은 3,200 kcal/kg정도로 매우 높았으며 선택채식사료중에 밀기울이 포함된 $T_2$와 $T_3$는 2,300 kcal/kg내외로 극히 낮았다. 한편 섭취된 사료의 단백질수준(蛋白質水準)은 대조구(對照區)가 2~6주령에 18%, 6~14주령에 15%, 14~20주령에 12%였는데 비해 선택채식구(選擇採食區)들 ($T_1$, $T_2$ 및 $T_3$)은 모두 선택채식(選擇採食) 방법(方法)이나 성장기에 관계없이 12~13%정도로 매우 낮았다. 결론적(結論的)으로 난용계(卵用鷄) 육성기(育成期)에는 육성기(育成期) 체중(體重)을 효과적(效果的)으로 조절(調節)하고 사료비(飼料費)를 절감(節減)할 수 있는 사료체계(飼料體系)의 근본적인 개선(改善)이 필요하다고 생각된다. A dietary self-selection study was carried out to get information for the improvement of feeding systems of egg-type growing pullets. Corn diet, soybean meal diet, wheat bran diet and soybean meal+fish meal diet were individually prepared for self-selection regime and 380 day-old chicks of a brown egg strain were offered either a control grower diet(C) or one of the 3 self-selection regime consisted of corn-soybean meal diet ($T_1$), corn-soybean meal-wheat bran diet($T_2$) and corn-soybean meal+fishmeal-wheat bran diet($T_3$) during 20 weeks of the growing period. Compared with pullets fed control diet(C), those fed the self-selection diets($T_1$, $T_2$ and $T_3$) were smaller in body weight at 20 weeks of age by 12% and consumed less energy and protein by 11% and 9%, respectively. Calculated metabolizable energy levels of feed consumed during the growing period were about 3,200 kcal/kg in $T_1$ and 2,300 kcal/kg in $T_2$ and $T_3$ and dietary protein levels were about 12~13% in all self-selection diets ($T_1$, $T_2$ and $T_3$) regardless of pullet age. The results of the study suggest that the conventional feeding system of egg-type growing pullets should be improved in order to control the body weight effectively and to reduce the cost of grower feed.

국내산 어류의 사료가치에 관한 시험

이규호,김덕교 ( K . H . Lee,D . K . Kim ) 한국축산학회 1974 한국축산학회지 Vol.16 No.4

To serve as a basic information in using domestic fish meals instead of imported one in chick ration, two feeding trials were carried out with broilers for eight weeks each. 1. The content of crude protein and essential and non-essential amino acids except valine in the foreign fish meal was superior to that of ten kinds of domestic fishes.(Harengula zunasi, Chasmichthys gulosus, Clupanodon punctatus, Arctoscopus japonicus, lagre anchovy, medium anchovy, small anchovy, anchovy heads, fish heads and mixed fishes). 2. No statistical differences were noted among 5 domestic fishes (Harengula zunasi, Chasmichthys gulosus, medium anchovy, small anchovy and mixed fishes), 7 domestic fish meals (Arctoscopus japonicus, Harengula zunasi, Engraulis japonica, Ammodytes personatus, Trichiurus haumela, Monacanthus cirrhifer and small Alaska pollack.) and imported fish meal in weight gain, feed consumption and feed efficiency. It was thus concluded that all of the domestic fishes and fish meals used in these experiments were just as effective as the imported one when used to supply comparable amounts of protein in broiler rations.

지능형컴퓨터의 기본 하드웨어 구조

이규호(K-H Lee),이장선(J-S Lee),김상범(S-B Kim),박성배(S-B Park),양호(H Yang) 한국정보과학회 1990 한국정보과학회 학술발표논문집 Vol.1990 No.5

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.

난용계의 선택채식과 영양소 공급체계

이규호 ( K . H . Lee ) 한국영양사료학회 1995 제6회 사료가공 단기과정 Vol.- No.-

산란계에 대한 잠분 급여시험

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.

육용종계의 산란기의 요구량에 관한 연구

이규호(K . H . Lee),이상진(S . J . Lee),김영호(Y . H . Kim) 한국영양사료학회 1988 韓國營養飼料學會誌 Vol.12 No.3