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- 저자 : 손창호 (검색결과 265 건)
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손창호,김혜령,김정훈,정경아,이주환,오기석,박인철,박상국,김성호 한국임상수의학회 2001 한국임상수의학회지 Vol.18 No.2
This study was undertaken to determine the normal serial ultrasonographic appearance of the postpartum uterine involution in small pet dogs (Yorkshire terrier and Maltese). Postpartum changes in uterine shape, architecture, echogenicity and diameter were monitored by ultrasonography in 12 small pet dogs. Serial ultrasonographic examinations were done daily during the first week, 3 days interval from 8 to 30 days, and weekly from 31 to 100 days postpartum. The excretory period of vaginal discharge in 12 normal bitches of uterine involution was finished completely within 3 weeks postpartum. The short axis shape of the uterus was initially often flaccid-appearing. It varied from circular to polygonal. This lasted until 15.75$\pm$3.84 days postpartum, during which time the short axis uterine shape gradually changed to circular. Also, the long axis shape of the uterus was a beaded appearance until 30.89$\pm$4.25 days postpartum. After 30 days, it was appeared as tubular shape between placental and interplacental sites. The ultrasonographic image of the postpartum uterus consisted of four echogenicity distinct layers. Uterine wall was represented as very hyperechoic serosa, hypoechoic myometrium, hyperechoic endometrium and anechoic structures of fluid in the uterine cavity until 7 days postpartum. The individual uterine layers were most prominent during the first week postpartum, and they became progressively less distinct throughout the course of uterine involution. The thickness of myometrium was decreased rapidly in the placental sites from 4.47$\pm$1.42 mm at 1 day to 1.92$\pm$0.26 mm at 16 day, and in the interplacental sites from 3.19$\pm$0.61 mm at 1 day to 1.39$\pm$0.61 mm at 16 day. And it was decreased slowly until 94 day and was been minimum thickness at 94 day. The thickness of endometrium was also decreased like that of myometrium. The uterine diameter in the placental sites was decreased from 22.28$\pm$3.01 mm at 1 day to 16.11$\pm$1.46 mm at 7 day, and in the interplacental sites was decreased from 13.65$\pm$2.34 mm at 1 day to 9.41$\pm$1.59 mm at 7 day postpartum. From 7 day to 93 day, the change of diameter was more and more slow. At 94 days postpartum, the uterine diameter was 5~6 mm both placental and interplacental sites, and the uterine horns were uniform hypoechoic, tubular structures without enlargement. Therefore, complete involution of the uterus occurred at 94 days. It was concluded that normal post partum uterine involution in small pet dogs appeared to be completed 94 days postpartum by gross findings such as vaginal discharges, and by ultrasonographic findings, uterine shape and echogenicity.
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지렁이 분말의 급여가 강제환우시킨 산란노계의 생산성에 미치는 영향
손창호 한국유기농업학회 2004 韓國有機農業學會誌 Vol.12 No.2
A study was conducted to investigate the effect of supplementing earthworm meal (EWM) on the performance of spent laying hens after induced molting, and fatty acid composition in egg yolks. A total of 90 laying hens at 73 weeks of age were fed the experimental diets containing 0.0% (Control) and 0.2% of EWM for 4 weeks. Eggs were collected and weighted every day and egg production and feed conversion were recorded every week during the experimental period. However fatty acid composition of egg yolk were measured at last week of experimental period. An amount of feed intake increased by supplemental with EMW except for first week experimental period (P<0.05). When 76 and 77 week of age, egg production and daily egg mass were improved by the supplemented with EWM (P<0.01), but average egg weight was not different when fed a EWM, therefore feed/egg mass was significantly decreased when fed a EWM. The ratio of egg yolk n-6/n-3 fatty acids contents was significantly improved fed a EMW (P<0.05). It is concluded that supplementing 0.2% of earthworm meal in the spent laying hens after induced molting was fast in recover of physical strength, therefore improves laying performance. 본 연구는 강제환우를 실시한 산란노계의 생산성과 난황 지방산 조성에 미치는 지렁이 분말(EWM)의 첨가 효과를 구명하기 위해서 실시되었다. 총 90수의 73주령의 산란계를 공시하여서 EWM 0.0%(대조구) 및 0.2%를 첨가한 사료로 4주 동안의 사양시험을 실시하였다. 계란은 매일 수집하여 난중을 측정하였고 산란율 및 사료요구율은 시험기간동안 매주단위로 조사하였다. 뿐만 아니라 시험 마지막 주에는 난황중의 지방산 조성도 조사하였다. 사료섭취량은 EWM의 첨가에 의해서 시험 일주째를 제외하고 증가되었다(P<0.05). 76 및 77주령에서 평균산란율 및 일일 산란량은 지렁이 분말 첨가에 의해서 증가되었다(P<0.01), 그러나 평균난중은 지렁이 분말급여로 인한 차이는 인정되지 않았다. 결과적으로 사료요구율은 EWM의 급여에 의해서 낮아졌다(P<0.05). 난황중의 n-6/n-3지방산의 비는 지렁이 분말의 급여에 의해서 유의하게 개선되었다(P<0.05). 결론적으로 강제환우를 실시한 산란노계에 0.2%의 EWM(지렁이분말)의 첨가는 빠른 체력회복을 도모하여서 생산성을 개선시켰다.
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