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약용 식물 가공 부산물의 첨가가 산란계의 생산성 및 난질에 미치는 영향
김지혁,나재천,김상호,장병귀,강희설,이덕수,이상진,좌승협,Kim J.H.,Na J.C.,Kim S.H.,Jang B.G.,Kang H.S.,Lee D.S.,Lee S.J.,Jwa S.H. 한국가금학회 2006 韓國家禽學會誌 Vol.33 No.2
본 실험은 약용 식물 가공 부산물의 산란계에 대한 급여 효과를 시험하기 위해 수행되었다. 95주령의 산란계 560수를 7처리 4반복으로 반복당 20수씩 배치하여 12주간 사육하면서 동충하초, 인진쑥, 울금 가공 부산물을 각각 1.5%, 3.0% 를 사료에 혼합 급여하였다. 산란율은 전 기간에 걸쳐 처리 구간에 유의적인 차이를 보이지 않았으며, 사료 섭취량과 평균 난중도 영향을 받지 않았다. 난각 두께, 난각 강도, 난각 색, 난황색에 있어서도 역시 처리구간 유의차가 나타나지 않았으나, Haugh unit 에 있어서는 대조구에 비해 모든 약용식 물 처리구에서 유의적으로 높았다(p<0.05). 실험 결과를 종합할 때, 동충하초, 인진쑥, 울금 가공 부산물을 산란계 사료 내 $1.5{\sim}3.0%$ 첨가 급여시 사료 섭취량, 산란율에는 영향을 미치지 않았으며, Haugh unit 에 있어서 유의적으로 향상되는 결과를 나타내어 고품질 계란 생산 및 약용식물 가공 부산물의 사료 자원화 가능성을 보여주었다. This experiment was carried out to investigate the effects of medicinal plant by-products on productivity and egg quality in laying hens. A total of five hundred sixty laying hens was randomly distributed into 7 treatments with 4 replicates of 20 birds per replicate and fed com-soy based experimental diets containing 1.5% and 3.0% by-products of Cordyceps militaris, Artemisia capillaris and Curcuma aromatica S., respectively for 12 weeks. Egg production was not significantly different among treatments. Haugh unit was significantly increased in all treatments compared to control(p<0.05). There was no difference among the treatments in egg shell breaking strength, shell thickness, and yolk color. In conclusion, three medicinal by-products used in this experiment did not affect feed intake, egg production and showed positive effect on Haugh unit when they used $1.5{\sim}3.0%$ of feed.
저단백질사료 급여시 육성돈의 Methionine 요구량에 대한 연구
김광현(K . H . Kim),곽종형(C . H . Kwack),김용식(Y . S . Kim),전우복(W . B . Chun),이상진(S . J . Lee) 한국축산학회 1990 한국축산학회지 Vol.32 No.12
This study was conducted to determine the optimumn level of DL-methionine for pro-finishing piglets fed 12% CP corn-soy diet fortified with 0.24% L-lysine and 0.06%, L-threonine. Onehundred and twenty growing pigs(L × W × D :34.4kg BW) were randomly allotted to 4 supplemental levels of DL-methionine treatments(0, 0.035, 0.07 and 0.105%) for 36 days feeding trial Each treatment consisted of 3 replicates and 10 pigs per replicate, respectively. A metabolic trial was conducted with 12 pigs for 5 days after the feeding trial. Results obtained were summarized as follows: l. Although there was no statistical differences among treatments, the average daily weight gain in 0.07% treatment and feed intake in basal diet were a little higher than the other treatments. However, there was a significant difference(p$lt;.05) between 0.07% and other groups in feed conversion. 2. Although there was no significant differences among treatments, the highest values of crude protein digestibility, TDN and nitrogen retention were obtained with the 0.07% treatment. However. the methionine availability value(88.82%) of 0.07% treatment was significantly(p$lt;.05) higher than those of the other treatments. 3. The free S-containing amino acid level of plasma tended to increased as dietary level of methionine increased. However, the plasma urea-N level was the lowest in 0.07% treatment. 4. The total non-sulfur free essential amino acid level of plasma was lowest in 0.07% treatment and tended to increase as the methionine level increased to 0.105%. It could be concluded that the optimum level of DL-methionine supplementation for growing piglets fed 12% CP corn-soy diet is 0.07%, resulting in 0.45% S-containing amino acids in the diet.