단위동물 사료 생산 기술의 최근 발전 현황

채병조(B . J . Chae),한인규(I . K . Han),이영철(Y . C . Rhee),오상집(S . J . Ohh),김지훈(J . H . Kim),정용기(Y . K . Chung) 한국영양사료학회 1997 韓國營養飼料學會誌 Vol.21 No.1

부로일러에 대한 처리별 어유 ( 魚油 )의 사료 이용성에 관한 연구

한인규,채병조,오상집 ( I . K . Han,B . J . Chae,S . J . Ohh ) 한국축산학회 1982 한국축산학회지 Vol.24 No.1

In order to evaluate the nutritive value of crude and refined fish oils as a high energy feed, a feeding experiment was conducted employing 3 days old 200 broiler chicks of Hisex-Hibro strain for a period of 6 weeks. Birds were distributed into 5 experimental treatment groups with 4 replicates per treatment, consisting of control (starter; rice bran oil, grower; soybean oil), crude fish oil 5%, deoxidized fish oil 5%, decolorized fish oil 5% and deodorized fish oil 5%. The results obtained are summarized as follows: 1. Linoleic acid content of fish oils used in this study was considerably lower than soybean oil and rice bran oil, but arachidonic acid content of the fish oils was slightly higher than those of the vegetable oils. The acid value of crude fish oil was considerably higher (17.30) than those of other oils. 2. Body weight gain was slightly decreased by feeding crude or refined fish oils at 5% level. And it was found that body weight gain obtained from 5% deodorized fish oil group was significantly (p$lt;0.01) decreased. 3. There was a significant (p$lt;0.01) decrease in feed consumption for crude or refined fish oil groups. The amount of feed intake by deodorized fish oil group was significantly (p$lt;0.01) smaller than those of other fish oil fed groups. 4. No difference was observed in feed efficiency (feed/gain) and nutrients utilizability of the experimental diets among treatments. 5. Mortality was not affected by oil sources, but only crude fish oil group showed 2.5% mortality. From the results of present experiment it may be concluded that the use of deoxidized fish oil rather than crude fish oil would be desirable in broiler rations because of the lethal effect of the crude fish oil. Further study maybe necessary for the use of refined fish oils or mixture of fish oil with the other animal or vegetable oils, as feedstuffs and for the determination of the proper level of usage in broiler rations.

단위동물에 있어서 칼슘 및 인의 영양에 관한 연구 1 . 브로일러에 있어서 칼슘 , 인 및 비타민 D3 의 교호작용에 관한 연구

오상집,한인규,채병조 ( S . J . Ohh,I . K . Han,B . J . Chae ) 한국축산학회 1982 한국축산학회지 Vol.24 No.3

To search for the interaction of three antirachitogenic nutrients, calcium, phosphorus and vitamin D₃, two experiments were conducted using a total of 512 commercially hatched broiler chicks of Hisex Hybro strain. One experiment, arranged in 2 x 2 x 3 factorial design were used to study the growing performance of the chicks, supplemented with two levels (0.9, 0.45%) of calcium, two levels (0.7, 0.35%) of phosphorus and three levels (0, 200, 400 IU/㎏ diet) of vitamin D₃. Another experiment was designed to study the changes in serum calcium and phosphorus contents with or without vitamin D₃ dose. A 2 x 2 x 2 factorial arrangement with 4 replications of chicks was employed with two levels (0 and 0.66 g per day) of calcium, two levels (0 and 0.51 g per day) of phosphorus and two levels (0, and 30 IU per day) of vitamin D₃. The result obtained are summarized as follows. 1. There were significant effects on body weight gain with single administration of calcium, phosphorus and vitamin D₃ and also showed marked effects on growth rate with calcium x phosphorus interaction and calcium x vitamin D₃ interaction. However, present evidence indicated that the effect of phosphorus x vitamin D₃ interaction and calcium x phosphours x vitamin D₃ interaction on growing performance were not significant. 2. Feed intake were significantly (p $lt; 0.01) influenced by the single administration of calcium and vitamin D₃ and by the interaction of calcium x phosphorus, calcium x vitamin D, phosphorus x. vitamin D and calcium x phosphorus x vitamin D. There was not a significant effect of single phosphorus administration on feed intake. 3. It was found that feed conversion were also greatly influenced by the silagle supplementation of calcium, phosphorus and vitamin D₃. And also influenced by calcium x phosphorus, calcium vitamin D₃, phosphorus x vatimin D₃ and calcium x phosphorus x vitamin D₃ interaction. 4. Data revealed that there was no marked improvement in growing performance by in; creasing vitamin D₃ level to 400 IU/㎏ to the chicks, previously fed no or low vitamin D₃. But there was a great improvement on feed conversion with increasing level of vitamin D₃ to the chicks. 5. No significant differences were found in nutrient utilizabilities among treatments. Protein utilizabilities were gradually increased with increasing level of vitamin D₃ in optimum calcium fed groups and vice versa in low calcium received group. 6. Analytical indicated that raising the level of dietary vitamin D₃ led to increase in tibia ash content and calcium and phosphorus content of tibia. Tibia ash contents were greater in optimum calcium fed groups than in suboptimum calcium treated groups. However, there was no difference in tibia ash content between optimum and suboptimum phosphorus fed groups. 7. Supplementing no vitamin D₃ led to high mortality percent during experimentation. There was also significant difference in mortality between low and optimum calcium fed groups and not between dietary phosphorus level. 8. Present data showed that serum calcium level was, increased in contrast with the serum phosphorus level, decreased after vitamin D₃ administration. This tendency was evident at 12 hours after dose of vitamin D₃. When the optimum calcium was offered, the serum phosphorus contents was decreased after vitamin D₃ administration but showed no changes in no prior vitamin D₃ administration. It could be concluded that the supplementation of vitamin D₃ to the broiler chick diet is indispensable for the normal growth, especially in suboptimum level of calcium and phosphorus diet. It was also apparent that increasing vitamin D₃ above 200 IU per ㎏ diet did not show additional effect on the growing performance of chicks. It would be necessary to undertake more-detailed study for the time course information of serum calcium and phosphorus change after vitamin D₃ dose.

복지 사육환경에서 산란계 및 육계의 사양지침 변화

이준엽,이용준,채병조,이정헌,윤석민,이명호,오상집,Lee, Jun-Yeop,Lee, Yong-Joon,Chae, Byung-Jo,Lee, Jeong-Heon,Yoon, Seok-Min,Lee, Myoung-Ho,Ohh, Sang-Jip 한국축산환경학회 2010 축산시설환경학회지 Vol.16 No.1

Poultry welfare has recently appeared as worldwide concern as well as Korea. The recent action plan for farm animal welfare introduced by the European Commission intends to expand the body of regulatory standards. In this context, many countries and/or organization are on the verge of establishing the most optimum poultry welfare standards. To establish the most optimum standards, comparative analysis of feeding regimen before and after welfare-bestowed environment need to be preceded. Most guidelines or standards for poultry welfare do not suggest the nutritional requirements and feeding system in detail, although it is deterimental especially for the farmer. This review intends to find scientific base to establish detailed welfare feeding guidelines. However, only limited research has been conducted in the view of actual poultry welfare. The results indicated the incidence of SDS, ascites, skeletal dysfunctions caused by fast growth rate in broiler, feather pecking and cannibalism in laying hen, and feed restriction in broiler breeder could be reduced by changing nutritional regimen and feeding strategies or both. The regimen and feeding strategies are certainly near to the direction that the poultry welfare ought to be in the right track. In this article, feeding and drinking guidelines in many standards as well as welfare feeding experiments have been reviewed and compared In the view of chicken productivity, welfare physiology and poultry health.