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오한진(Han-Jin Oh),윤원(Won Yun),이지환(Ji-Hwan Lee),곽우기(Woo-Gi Kwak),오서영(Seo-Young Oh),류슈동(Shu-Dong Liu),김광식(KwangSik Kim),조진호(JinHo Cho) 충북대학교 동물생명과학연구소 2017 동물생명과학연구 Vol.9 No.-
In modern livestock industry, the use of antibiotics in the diets was strictly prohibited. Currently many additives are studied and used as antibiotic substitutes. Among them, we reviewed the effects of supplement charcoal in monogastric livestock`s feed additives. Supplement charcoal in diets showed improvement of growth performance and improved immune response to mycotoxin. Moreover, in faeces of fattening pigs, charcoal reduced emission of noxious gases and faecal pH and fecal microflora. The use of charcoal as feed additives has a positive benefit on livestocks.
안지선(Ji-Seon An),오한진(Han-Jin Oh),윤원(Won Yun),이지환(Ji-Hwan Lee),곽우기(Woo-Gi Kwak),이창희(Chang-Hee Lee),류수동(Shu-Dong Liu),조진호(JinHo Cho) 충북대학교 동물생명과학연구소 2018 동물생명과학연구 Vol.10 No.-
The objective of this study was to investigate the effects of Essential oils (EO) on the storage and improvement of quality of dog food. These treatments were as follows : CON (ether extract (EE)/ crude protein (CP) ratio 〈 0.5), and TRT (EE/CP ratio > 0.5). In the test for antioxidant effect, EO was sprayed to the food surface to observe the delay of corruption by external observation. In the test for quality improvement, the sample was diluted and the microorganism was observed. With regard to decayed time, storage time was improved in EO treatment than CON on 1.1 days. Lactobacillus content was significantly increased (P 〈 0.05) in EO treatment than CON. Salmonella and E. coli contents were significantly decreased (P 〈 0.05) in EO treatment than CON. In conclusion, antioxidant function and storage stability of the feeds with the EE/CP ratio above 0.5 were improved by EO supplementation on dog diets. The quality of the feed was improved by controling contents of pathogen microorganisms.
괴산지역 내 귀리(다크호스)의 파종시기가 생산량 및 영양소 함량에 미치는 효과
지윤광(Yoon-Guang Ji),박성준(Seong-Joon Park),장연(Yan Zhang),김덕순(Deuk-Soon Kim),곽우기(Woo-Gi Kwak),최성호(Seong-Ho Choi) 충북대학교 동물생명과학연구소 2016 동물생명과학연구 Vol.8 No.-
Oats are used for livestock feed in the world. This experiment was conducted at Goesan Gun of Korea in 2015. The objective of this study was to evaluate oat (Darkhorse) cultivars with high-yielding and a quality for forage adaptable in spring planting seasons. Experimental design was split-plot design with three replications. A split plot design was used with seeding date on the main plots and other treatments fully randomized in sub-plots. Plant dry matter (DM), crude protein (CP), ether extract (EE), neutral detergent fiber (NDF), acid detergent fiber (ADF) and ash were significantly affected by seeding dates. The pH and gas production were affected by planting period when incubated with rumen microbes. Harvested oat from early planting is more useful in composition of useful nutrients and degradation by rumen microbes.