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Escherichia coil phytase의 첨가가 비육돈의 생산성, 도체특성 및 분 내 구리와 아연 함량에 미치는 영향
김영화 ( Y. H. Kim ),신승오 ( S. O. Shin ),박준철 ( J. C. Park ),정현정 ( H. J. Jung ),조진호 ( J. H. Cho ),진영걸 ( Y. J. Chen ),유종상 ( J. S. Yoo ),문홍길 ( H. G. Moon ),지상윤 ( S. Y. Ji ),김인철 ( I. C. Kim ),이상진 ( S. J. Lee 한국동물자원과학회 2008 한국축산학회지 Vol.50 No.1
형태별 구리 및 아연 급여가 비육돈의 생산성, 영양소 소화율, 도체 및 육질 특성에 미치는 영향
김영화,유종상,박준철,정현정,조진호,진영걸,김해진,김인철,이상진,김인호,Kim, Y.H.,Yoo, J.S.,Park, J.C.,Jung, H.J.,Cho, J.H.,Chen, Y.J.,Kim, H.J.,Kim, I.C.,Lee, S.J.,Kim, I.H. 한국축산식품학회 2008 한국축산식품학회지 Vol.28 No.1
This study investigated the effects of copper and zinc sources on growth performance, nutrient digestibility, carcass traits and meat characteristics in finishing pigs. Dietary treatments included 1) inorganic copper ($CuSO_4{\cdot}5H_2O$ 30ppm), 2) organic copper (Cu-methionine, 30 ppm), 3) inorganic zinc (ZnO, 80 ppm) and 4) organic zinc (Zn-methionine, 80 ppm). ZnO treatment improved the ADFI (average daily feed intake) compared to Cu-met and Zn-met treatments (p<0.05) during 5 weeks of treatment. However, during the entire experimental period, the ADG (average daily gain), ADFI and F:G ratio (feed conversion ratio) were not significantly different among the treatments (p>0.05). DM and N digestibility were not significantly different among the treatments after 5 weeks (p>0.05). At the end of the experiment, DM and N digestibility were decreased with Zn-met treatment relative to the other three treatments. The pH value of meat from $CuSO_4$ treated pigs was greater than Zn-met and ZnO treated pigs (p<0.05). Sensory evaluation was carried out for randomly selected (n = 16) paired loin samples. Meat color levels were increased (p<0.05) with Cu treatments compared to Zn treatments. $CuSO_4$ decreased the marbling of meat relative to the other treatments (p<0.05). The firmness was greater with ZnO treatment compared to Cu-met and ZnO treatments (p<0.05). These results indicate that inorganic Zn can improve growth performance, however, inorganic Cu and Zn are as effective as organic Cu and Zn at improving nutrient digestibility, carcass traits and meat quality. This form of organic additive can be friendlier to the environment than inorganic supplements.
( Ji-yeon Oh ),( Jong-hwa Jang ) 융합연구학회 2018 융합연구학회지 Vol.2 No.1
The purpose of this study is to investigate the academic stress, self efficacy, burn out, social support and college life adaptation of dental hygiene students and their correlations with related factors influencing college life adaptation. A total of 265 students were selected as stratified sampling methods at the universities in which the department of dental hygiene was established nationwide. From September 1, 2015 to October 22, 2015, the self report questionnaire was used. The main variables were college life adaptation, academic stress, self efficacy, burn out, social support, and analyzed using SPSS 21.0. College life adaptation was 5.17 out of 9 points, academic stress was 2.88 points out of 6 points, self efficacy, burn out, and social support were 3.35, 2.60, and 3.54 out of 5, each respectively. Self efficacy and stress due to task and class were significant influences on individual-emotional adaptation in college life adaptation. In the case of college environment adaptation, exhaustion, self efficacy and social support were significant influencing factors. In the case of social adaptation, self efficacy and social support were significant influencing factors. Overall, academic stress and college life adaptation were closely related, and social psychological factors such as burn out, self efficacy and social support were mediated. Therefore, it is suggested that it should be applied to college education in order to increase adaptation of dental hygiene students, to reduce academic stress and burn out, and to develop intervention strategies that can enhance self efficacy and social support.
Selenium과 비타민 E의 급여가 비육돈의 육질 특성 및 저장성에 미치는 영향
김해진,박준철,진영걸,유종상,이상진,김인철,김명화,정현정,박병철,김인호,Kim H.J.,Park J.C.,Chen Y.J.,Yoo J.S.,Lee S.J.,Kim I.C.,Kim Y.H.,Jung H.J.,Park B.C.,Kim I.H. 한국축산식품학회 2006 한국축산식품학회지 Vol.26 No.2
본 연구는 비육돈 사료내 Se과 비타민 E를 첨가하였을 때 육질 특성 및 저장성을 알아보기 위해 실시하였다. 3원 교잡종($Landrace{\times}Yorkshire{\times}Duroc$) 비육돈 80두를 공시하였으며, 시험개시시의 체중은 74.74 kg이었다. 시험설계는 Se의 첨가수준과 첨가형태에 따라 1) CON(basal diet), 2) ISE2 (basal diet + 0.2 ppm inorganic Se + 100 ppm vitamin E), 3) ISE4(basal diet + 0.4 ppm inorganic Se + 100 ppm vitamin E), 4) OSE2(basal diet + 0.2 ppm organic Se + 100 ppm vitamin E) 및 5) OSE4(basal diet +0.4 ppm organic Se + 100 ppm vitamin E)로 5처리를 하여 처리당 4반복, 반복당 4마리 씩 완전임의 배치하였다. 가열 감량은 ISE4 처리구가 CON 처리구와 비교하여 유의적으로 낮게 나타났다(p<0.05). 조지방 함량은 OSE2 처리구가 다른 처리구들과 비교하여 유의적으로 높게 나타났다(p<0.05). 적색도를 나타내는 $a^*$-값은 저장 10일째 OSE2 처리구가 다른 처리구들과 비교하여 유의적으로 높게 나타났다(p<0.05). TBARS에서도 저장 10일째에 OSE4 처리구가 CON과 ISE2 처리구와 비교하여 유의적으로 낮게 나타났다(p<0.05). 결론적으로, 비육돈 사료내 Se와 비타민 E를 첨가하였을 때 가열감량, 육색 및 지방산패도에 미치는 영향은 미미한 것으로 사료된다. This study was conducted to investigate the effect of seleium (Se) and vitamin E supplementation on meat quality and shelf-life in finishing pigs. A total of eighty ($Landrace{\times}Yorkshire{\times}Duroc$) pigs (74.74 initial BW) were randomly allocated into five treatments with four replications and fed for six weeks. Dietary treatments included 1) CON (basal diet), 2) ISE2 (basal diet+0.2 ppm inorganic Se+100 ppm vitamin E), 3) ISE4 (basal diet+0.4 ppm inorganic Se+100 ppm vitamin E), 4) OSE2 (basal diet+0.2 ppm organic Se+100 ppm vitamin E) and 5) OSE4 (basal diet+0.4 ppm organic Se+100 ppm vitamin E). Cooking loss was decreased in treatment of ISE4 as compared with treatment of CON (p<0.05). Crude fat (%) of OSE2 was higher than those of others (p<0.05). Redness ($a^*$- value) of M. longissimus dorsi was increased in treatment of OSE2 as compared with other treatments after 100 of storage (p<0.05). Thiobarbituric acid reactive substances (TBARS) was decreased in treatment of OSE4 compared with treatments of CON and ISE2 after 10d of storage (p<0.05). In conclusion, Se and vitamin E combination did not significantly affect cooking loss,$a^*$- value and TBARS except for cases.