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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 98 - 108 (11page)
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초록· 키워드
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Four Korean native steers (511 ± 17.2 kg; 2 × 2 replicated crossover design) fitted with duodenal cannulas were used to investigate the influence of oral administration of soluble whey protein (WP; 82.29% crude protein) on ruminal fermentation, gastrointestinal (GI) hormone secretion in the blood, pancreatic α-amylase activity in the duodenum, and disappearance rate in each segment of the GI tract. Steers were orally fed the basal diet (control; TMR [total mixed ration] 9 kg/d) or the basal diet with enriched WP (400 g/d) for 14 days. The apparent crude protein disappearance rate in the rumen of the WP was higher than in control (p < 0.05). However, no difference between groups was observed in the apparent crude protein disappearance rate in the intestine and the apparent starch disappearance rates in the rumen, GI tract. The level of cholecystokinin, secretin, and ghrelin in serum and pancreatic α-amylase activity in the duodenum of the WP also did not change. The changes in the level of blood urea nitrogen related to protein metabolism were higher in the WP than in the control (p < 0.05). However, the levels of total protein, lipid, carbohydrate and mineral metabolites did not change. Consequently, we suggest that the oral administration of WP in steers assisted in ruminal fermentation due to the population increase of microbes in the rumen but did not improve the starch digestion rate in the small intestine because GI hormone secretion in the blood and pancreatic α-amylase activity did not change.
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참고문헌 (35)
참고문헌 신청
David L. Harmon / 2009 / Understanding Starch Utilization in the Small Intestine of Cattle / ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 22(7):915~922
Harmon DL / 2005 / Factors influencing assimilation of dietary starch in beef and dairy cattle / Proceedings of the Southwest Nutrition Conference :55~66
Taniguchi K / 1995 / Net nutrient flux by visceral tissues of beef steers given abomasal and ruminal infusions of casein and starch / J Anim Sci 73:236~249
Richards CJ / 2003 / Pancreatic exocrine secretion in steers infused postruminally with casein and cornstarch / J Anim Sci 81:1051~1056
Maiga HA / 1995 / Evaluation of diets containing supplemental fat with different sources of carbohydrates for lactating dairy cows / J Dairy Sci 78:1122~1130
Harmon DL / 2005 / Factors influencing assimilation of dietary starch in beef and dairy cattle / Proceedings of the Southwest Nutrition Conference :55~66
Taniguchi K / 1995 / Net nutrient flux by visceral tissues of beef steers given abomasal and ruminal infusions of casein and starch / J Anim Sci 73:236~249
Richards CJ / 2003 / Pancreatic exocrine secretion in steers infused postruminally with casein and cornstarch / J Anim Sci 81:1051~1056
Maiga HA / 1995 / Evaluation of diets containing supplemental fat with different sources of carbohydrates for lactating dairy cows / J Dairy Sci 78:1122~1130
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