Effect of Diets Differing in Crude Protein and Undegraded Intake Protein Level on Total-Tract Nutrient Digestibility and Nitrogen Metabolism in Sheep
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Diets different in crude protein (CP) and undegraded intake protein (UIP) contents were offered to sheep in a metabolism study to describe their effects on nutrient digestibility and nitrogen (N) metabolism. Six Corriedale sheep (body weight=56.2±2.3 kg) were divided in random within a Latin square design (replicated) to 1 of 3 diets: 1) a low-CP diet (LP; 12.2% CP with 35.1% UIP), 2) high CP with low UIP diet (HPLU; 14.9% CP with 33.7% UIP), and 3) high CP with high UIP diet (HPHU; 15.5% CP with 45.8% UIP). High-protein dried distillers grain and soybean meal were the main CP sources for the adjustment of UIP:DIP in the diets. No significant differences were found in feed consumption and nutrient digestibility; however, a greater proportion of CP was digested in sheep fed the HPLU diet (69.4%; P=0.04). Although N intake was greater in sheep receiving HPLU and HPHU diets, loss of N through fecal or urinary route was not different among sheep, which resulted in the highest (12.7 g/d) and lowest N retention (7.40 g/d) in HPHU- and LP-fed sheep, respectively. In conclusion, although CP or UIP content had marginal effects on feed consumption and whole-tract digestibility of the majority of nutrients, with the increased CP and UIP levels in the diet, the efficiency of N utilization was improved with regard to increased N retention with minimal differences in N excretion, which is important from an economic and environmental standpoint.
Abstract
Diets different in crude protein (CP) and undegraded intake protein (UIP) contents were offered to sheep in a metabolism study to describe their effects on nutrient digestibility and nitrogen (N) metabolism. Six Corriedale sheep (body weight=56.2±2.3 kg) were divided in random within a Latin square design (replicated) to 1 of 3 diets: 1) a low-CP diet (LP; 12.2% CP with 35.1% UIP), 2) high CP with low UIP diet (HPLU; 14.9% CP with 33.7% UIP), and 3) high CP with high UIP diet (HPHU; 15.5% CP with 45.8% UIP). High-protein dried distillers grain and soybean meal were the main CP sources for the adjustment of UIP:DIP in the diets. No significant differences were found in feed consumption and nutrient digestibility; however, a greater proportion of CP was digested in sheep fed the HPLU diet (69.4%; P=0.04). Although N intake was greater in sheep receiving HPLU and HPHU diets, loss of N through fecal or urinary route was not different among sheep, which resulted in the highest (12.7 g/d) and lowest N retention (7.40 g/d) in HPHU- and LP-fed sheep, respectively. In conclusion, although CP or UIP content had marginal effects on feed consumption and whole-tract digestibility of the majority of nutrients, with the increased CP and UIP levels in the diet, the efficiency of N utilization was improved with regard to increased N retention with minimal differences in N excretion, which is important from an economic and environmental standpoint.
참고문헌 (30)
- Farhad Ahmadi, "Fruit and vegetable discards preserved with sodium metabisulfite as a high-moisture ingredient in total mixed ration for ruminants: effect on in vitro ruminal fermentation and in vivo metabolism", Animal Bioscience, 33(3), pp.446~455 (2020), 아세아·태평양축산학회[DOI]
- Official Methods of Analysis, "AOAC International", AOAC Int, ~ (2012)
- Arroquy, J. I., "Effect of level of rumen degradable protein and type of supplemental non-fiber carbohydrate on intake and digestion of low-quality grass hay by beef cattle", Anim. Feed Sci. Technol, 115, pp.83~99 (2004)
- Atkinson, R., "Effects of supplemental ruminally degradable protein versus increasing amounts of supplemental ruminally undegradable protein on nitrogen retention, apparent digestibility, and nutrient flux across visceral tissues in lambs fed low-quality forage", J. Anim. Sci, 85, pp.3331~3339 (2007)
- Atkinson, R. L., "Effects of supplemental ruminally degradable protein versus increasing amounts of supplemental ruminally undegradable protein on site and extent of digestion and ruminal characteristics in lambs fed low-quality forage", J. Anim. Sci, 85, pp.3322~3330 (2007)
- Bandyk, C. A., "Effect of ruminal vs postruminal administration of degradable protein on utilization of low-quality forage by beef steers", J. Anim. Sci, 79, pp.225~231 (2001)
- Böt ger, C., "Review : protein value of distillers dried grains with solubles(DDGS)in animal nutrition as affected by the ethanol production process", Anim. Feed Sci. Technol, 244, pp.11~17 (2018)
- Davies, K., "Effects of dietary ruminally degradable starch and ruminally degradable protein levels on urea recycling, microbial protein production, nitrogen balance, and duodenal nutrient flow in beef heifers fed low crude protein diets", Can. J. Anim. Sci, 93, pp.123~136 (2013)
- Egan, A., "Nutritional status and intake regulation in sheep. I. Effects of duodenally infused single doses of casein, urea, and propionate upon voluntary intake of a low-protein roughage by sheep", Crop Pasture Sci, 16, pp.437~449 (1965)
- Huntington, G., "Effect of ruminal protein degradability on growth and N metabolism in growing beef steers", J. Anim. Sci, 79, pp.533~541 (2001)
- Ishler, V., "Nitrogen, ammonia emissions and the dairy cow", Extension Associate, Pennsylvania State University, Mid-Atlantic CSREES Regional Water Quality Project., ~ (2004)
- Kiran, D., "Effects of barley grain processing and dietary ruminally degradable protein on urea nitrogen recycling and nitrogen metabolism in growing lambs", J. Anim. Sci, 85, pp.3391~3399 (2007)
- Korean Feeding Standard Establishment Council, "Korean Feeding Standard for Korean Cattle (Hanwoo)", National Livestock Research Institute, RDA, Ministry of Agriculture and Forestry, ~ (2007)
- 곽완섭, "In situ ruminal degradation characteristics of dry matter and crude protein from dried corn, high-protein corn, and wheat distillers grains", 한국축산학회지, 58(9), pp.1~7 (2016), 한국축산학회
- Lee Youn Hee, "Effect of crude protein content and undegraded intake protein level on productivity, blood metabolites, carcass characteristics, and production economics of Hanwoo steers", Animal Bioscience, 33(10), pp.1599~1609 (2020), 아세아·태평양축산학회[DOI]
- Licitra, G., "Standardization of procedures for nitrogen fractionation of ruminant feeds", Anim. Feed Sci. Technol, 57, pp.347~358 (1996)
- Ludden, P. A., "Effects of oscillating dietary protein on nutrient digestibility, nitrogen metabolism, and gastrointestinal organ mass in sheep", J. Anim. Sci, 80, pp.3021~3026 (2002)
- Tao Ma, "Effect of Dietary Concentrate:forage Ratios and Undegraded Dietary Protein on Nitrogen Balance and Urinary Excretion of Purine Derivatives in Dorperthin-tailed Han Crossbred Lambs", Animal Bioscience, 27(2), pp.161~168 (2014), 아세아·태평양축산학회[DOI]
- Marini, J., "Partition of nitrogen excretion in urine and the feces of Holstein replacement heifers", J. Dairy Sci, 88, pp.1778~1784 (2005)
- Marini, J. C., "Effect of nitrogen intake on nitrogen recycling and urea transporter abundance in lambs", J. Anim. Sci, 82, pp.1157~1164 (2004)
- Mathis, C. P., "Effects of supplemental degradable intake protein on utilization of medium-to low-quality forages", J. Anim. Sci, 78, pp.224~ (2000)
- Nakamura, T., "Evaluation of acid detergent insoluble nitrogen as an indicator of protein quality in nonforage proteins", J. Anim. Sci, 72, pp.1043~1048 (1994)
- Nennich, T. D., "Prediction and evaluation of urine and urinary nitrogen and mineral excretion from dairy cattle", J. Dairy Sci, 89, pp.353~364 (2006)
- National Research Council, "Nutrient Requirements of Small Ruminants" (2007), Natl. Acad. Press
- Paengkoum, P., "Effects of crude protein and undegradable intake protein on growth performance, nutrient utilization, and rumen fermentation in growing Thai-indigenous beef cattle", Trop. Anim. Health. Pro, 51, pp.1151~1159 (2019)
- Salisbury, M. W., "Effects of supplemental protein type on intake, nitrogen balance, and site, and extent of digestion in whiteface wethers consuming low-quality grass hay", J. Anim. Sci, 82, pp.3567~3576 (2004)
- Savari, M., "Effects of rumen-degradable protein : rumen-undegradable protein ratio and corn processing on production performance, nitrogen efficiency, and feeding behavior of Holstein dairy cows", J. Dairy Sci, 101, pp.1111~1122 (2018)
- Swanson, K. C., "Influence of undegraded intake protein on intake, digestion, serum hormones and metabolites, and nitrogen balance in sheep", Small Rumin. Res, 35, pp.225~233 (2000)
- Van Soest, P. J., "Nitrogen fractions in NDF and ADF", Proc. 39th Distillers Feed Conf, pp.72~ (1984)
- Yulistiani, D., "Nutrient digestibility and growth of five breeds of sheep under different levels of undegradable protein", JITV, 20, pp.23~30 (2015)