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동애등에(Hermetia illucens)유충 유래 기능성 사료첨가제가 육계 면역기능에 미치는 영향
지상윤 ( Sang-yun Ji ),박관호 ( Kwan-ho Park ),김기현 ( Ki-hyun Kim ),이희삼 ( Heui-sam Lee ),최규성 ( Gyu-sung Choi ),임연지 ( Yeon-ji Lim ),유리 ( Ri Yu ),최인학 ( In-hag Choi ),정태호 ( Tae-ho Chung ) 한국환경과학회 2018 한국환경과학회지 Vol.27 No.12
We investigate the effects of the immune function (HI titer) in broilers fed diets containing Hermetia illucens (H. illucens) peptide extract over a 40-day period. Twenty-four broiler chicks (Arbor Acres, 1 d old) were divided into four groups and fed different diets (control, 0.1%, 0.5%, and 1% H. illucens peptide extract). To evaluate HI titer, all broilers were vaccinated with H9H2 vaccine subcutaneously on the lateral thorax, according to the manufacturer’s recommendations. Similar HI titer was observed with 1% H. illucens peptide extract treatment compared to the control after 40 days (p>0.01). Groups fed 0.5% H. illucens peptide extract demonstrated the most effective immune effects (p<0.01), followed by groups fed 0.1% H. illucens peptide extract. In conclusion, using 0.1% or 0.5% H. illucens peptide extract before or after vaccination improved HI titer immune function in broilers.
동애등에(Hermetia illucens) 분말을 사료에 첨가 시 육계 생산성에 대한 변화
최인학 ( In-hag Choi ),지상윤 ( Sang-yun Ji ),박관호 ( Kwan-ho Park ),김기현 ( Ki-hyun Kim ),이희삼 ( Heui-sam Lee ),최규성 ( Gyu-sung Choi ),임연지 ( Yeon-ji Lim ),유리 ( Ri Yu ),정태호 ( Tae-ho Chung ) 한국환경과학회 2018 한국환경과학회지 Vol.27 No.12
This study was conducted to evaluate the growth performance of broilers fed different levels of Hermetia illucens powder. A total of 400 broiler chicks (1-day old Arbor Acres) were fed commercial diets containing H. illucens powder at 0%, 0.1%, 0.5%, and 1% with four replicates (25 chicks per replicate), for 35 days. Weight gain in broilers fed diets containing different levels of H. illucens powder increased significantly at 28 and 35 days, compared with that of the control (p<0.05). However, feed intake and mortality showed no differences among the treatments as a function of time. At 21, 28, and 35 days, broilers fed different levels of H. illucens powder had lower feed conversion rates (p<0.05) than their counterparts fed the control diet. In conclusion, 0.5% H. illucens powder is the optimal level for improved weight gain and feed conversion.
사료 중 단백질 수준 및 CLA (Conjugated Linoleic Acid) 첨가가 비육돈의 생산성 및 육질특성에 미치는 영향
문홍길 ( Hong Kil Moon ),이성대 ( Sung Dae Lee ),정현정 ( Hyun Jung Jung ),김영화 ( Young Hwa Kim ),박준철 ( Jun Cheol Park ),지상윤 ( Sang Yun Ji ),김종대 ( Chong Dae Kim ),권오섭 ( Oh Sub Kwon ),김인철 ( In Cheol Kim ) 한국동물자원과학회 2008 한국축산학회지 Vol.50 No.5
Ki-Hyun Kim(김기현),Jin-Young Jeong(정진영),Il-Hwan Song(송일환),Sung-Dae Lee(이성대),Sang-Yun Ji(지상윤),Yoo-Kyong Lee(이유경),Ki-Taeg Nam(남기택) 한국산학기술학회 2018 한국산학기술학회논문지 Vol.19 No.12
본 연구는 육계사료 내 금속단백질분해효소와 xylanase를 포함하는 복합 효소제 첨가 급여가 육계 생산성, 도체특성 및 계육 저장성에 미치는 영향을 조사하기 위하여 실시하였다. 실험 디자인은 2 (기초사료, 저영양사료) x 3 (0, 0.5, 1 g/kg 효소첨가) 요인 배치로 설계하였다. 실험동물은 ross broilers 수컷 360수를 공시하여 다음의 6개의 시험 그룹에 완전임의 배치하였다. BD-T0(기초사료+복합효소제 0 g/kg), BD-T1(기초사료+복합효소제 0.5 g/kg), BD-T2(기초사료+복합효소제 1 g/kg), LD-T0(저영양사료+복합효소제 0 g/kg), LD-T1(저영양사료+복합효소제 0.5 g/kg), LD-T2(저영양사료+복합효소제 1 g/kg). 사료와 물은 42일 동안 자유채식을 실시하였으며, 사료섭취량과 체중은 1주 간격으로 측정하였다. 사양시험 종료 후에 방혈로 도살하고 분석에 필요한 시료를 채취하였다. 사료 섭취량은 효소첨가 그룹이 효소 비첨가 그룹에 비해서 유의하게 감소하였으며, 체중과 일당증체량은 효소첨가 그룹이 효소 비첨가 그룹에 비하여 유의하게 증가하였다. 따라서 사료요구율은 복합효소 첨가에 의해 유의하게 개선되었다(p<0.05). 복합효소첨가 급여에 의하여 도체율과 생산지수 또한 유의하게 개선되었다(p<0.05). TBARS는 계육 저장 6일차에 효소첨가 그룹이 효소 비첨가 그룹보다 낮은 값을 나타내었다(p<0.05). 본 연구의 결과를 종합해보면, 사료 내 복합효소제의 첨가 급여는 생산성과 도체성적 그리고 저장성을 유의하게 개선시켰다. This study was conducted to investigate the effects of dietary supplementation of enzyme complex(metalloprotease and xylanase) on growth performance, carcass characteristics and meat storability of broiler chickens. The experiment utilized a 2 (basal and low spec diets) × 3 (0, 0.5 or 1 g/kg of enzyme supplementation) factorial arrangement. A total of 360 male Ross broilers were randomly assigned into the following six groups: BD-T0 (basal diet + enzyme complex 0 g/kg), BD-T1 (basal diet + enzyme complex 0.5 g/kg), BD-T2 (basal diet + enzyme complex 1 g/kg), LD-T0 (low spec diet + enzyme complex 0 g/kg), LD-T1 (low spec diet + enzyme complex 0.5 g/kg), LD-T2 (low spec diet + enzyme complex 1 g/kg). Feed and water were provided ad libitum for 42 days, during which time feed intake and body weight were measured at one-week intervals. After the feeding trial, chickens were slaughtered by exsanguination and samples were collected. Feed intake was lower in the enzyme supplemented groups than the non-supplemented groups (p<0.05), as were body weight and gain (p<0.05). Thus, the feed conversion ratio improved in the enzyme supplemented groups relative to the non-supplemented groups (p<0.05). The carcass rate and production index were also significantly improved by supplementation with enzyme complex (p<0.05). Finally, the thiobarbituric acid reactive substances (TBARS) values were lower in the enzyme supplementation groups after 6 storage days (p<0.05). In conclusion, dietary supplementation with enzyme complex including metalloprotease and xylanase improved growth performance, carcass characteristics, and storability of broiler chicken meat.
박관호(Kwanho Park),김용순(Yongsoon Kim),구본우(Bonwoo Goo),김은선(Eunseon Kim),박지영(Ji Yeong Park),지상윤(Ji Sang Yun) 한국식품과학회 2022 식품과학과 산업 Vol.55 No.2
Because of human population growth, longer lifespans, and climate change, there is growing concern around world to produce enough food and feed. Insects are regarded as an alternative with high potential because the production of insects demands limited amounts of water and land, and they can add value to low-value by-products. Insects have high levels of crude protein, lipids and minerals. The relative amount of protein can vary substantially, with crude protein content ranging from 23% to 76%, depending on insect species. Their amino acid composition is good and protein digestibility is high. Insect to be a significant sustainable source as a replacement of ingredients such as soya or fishmeal in the feeds of terrestrial livestock or fish. This review provides an overview of nutritional value of insect in animal feed and challenges required to develop a sustainable, safe, and affordable insect farming industry.