Effects of Potato By-products Containing Glycoalkaloid on Rumen Fermentation Characteristics
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
The present study was conducted to investigate the effects of feed types (powder vs. pellet) from potato by-product containing glycoalkaloid on rumen fermentation with different rumen pH (low vs. high) using in vitro technique. Rumen fluid was collected from two cannulated Hanwoo heifers before morning feeding (high rumen pH at 6.71) and 3 h after feeding (low rumen pH at 6.20). A 0.5 gram of powder or pellet from potato by-product was incubated in the rumen buffer for 48 h at 39℃. Four replications for each treatment were used along with two blanks. Pellet had higher (p<0.05) the immediately degradable fraction, the fractional degradation rate, and the lag phase than those of powder. However, feed type had no effects on the potentially degradable fraction and the total degradable fraction. In fermentation characteristics, powder had higher (p<0.05) concentrations of ammonia-N, total volatile fatty acid (VFA), and acetate than those of pellet. In addition, a high rumen pH had higher (p<0.05) concentrations of ammonia-N and acetate, but lower (p<0.05) total VFA concentration than those of a low rumen pH. The interaction effects between feed type and rumen pH were found on the total degradable fraction and concentrations of ammonia-N, total VFA, and acetate. The present study concluded that generally feed type had no effects on rumen degradation kinetics, but potato by-product in the powder form is recommended due to produce higher fermentation characteristics than in the pellet form.
Abstract
The present study was conducted to investigate the effects of feed types (powder vs. pellet) from potato by-product containing glycoalkaloid on rumen fermentation with different rumen pH (low vs. high) using in vitro technique. Rumen fluid was collected from two cannulated Hanwoo heifers before morning feeding (high rumen pH at 6.71) and 3 h after feeding (low rumen pH at 6.20). A 0.5 gram of powder or pellet from potato by-product was incubated in the rumen buffer for 48 h at 39℃. Four replications for each treatment were used along with two blanks. Pellet had higher (p<0.05) the immediately degradable fraction, the fractional degradation rate, and the lag phase than those of powder. However, feed type had no effects on the potentially degradable fraction and the total degradable fraction. In fermentation characteristics, powder had higher (p<0.05) concentrations of ammonia-N, total volatile fatty acid (VFA), and acetate than those of pellet. In addition, a high rumen pH had higher (p<0.05) concentrations of ammonia-N and acetate, but lower (p<0.05) total VFA concentration than those of a low rumen pH. The interaction effects between feed type and rumen pH were found on the total degradable fraction and concentrations of ammonia-N, total VFA, and acetate. The present study concluded that generally feed type had no effects on rumen degradation kinetics, but potato by-product in the powder form is recommended due to produce higher fermentation characteristics than in the pellet form.
참고문헌 (21)
- Adesogan AT, "A novel, wireless, automated system for measuring fermentation gas production kinetics of feeds and its application to feed characterization", Anim. Feed Sci. Technol., 123-124, pp.211~223 (2005)
- AOAC, "Official methods of analysis" (1995), Association of Official Analytical Chemists
- Bradshaw L, "Potato by-product feeding in the Pacific Northwest", Vet. Clin. Food Anim, 18, pp.339~347 (2002)
- Busboom JR, "Effects of graded levels of potato by-products in barley-and corn-based beef feedlot diets: II. Palatability", J. Anim. Sci., 78, pp.1837~1844 (2000)
- Chaney AL, "Modified reagents for determination of urea and ammonia", Clin. Chem, 8, pp.130~132 (1962)
- Charmley E, "Nutrient cycling in the vegetable processing industry: Utilization of potato by-product", Can J. Soil Sci, 86, pp.621~629 (2006)
- Hobson PN, "The rumen microbial ecosystem" (1997), Blackie Academic and Professional
- Hoover WH, "Chemical factor involved in ruminal fiber digestion", J. Diary Sci., 69, pp.2755~2766 (1986)
- King RR, "Transformations of potato glycoalkaloids by rumen microorganisms", J. Agric. Food Chem, 29, pp.1101~1103 (1981)
- McDonald I, "A revised model for the estimation of protein degradability in the rumen", J. Agri. Sci, 96, pp.251~252 (1981)
- Mohan B, "Evaluation of organic growth promoters on yield of dryland vegetable crops in India", J. Org. Syst, 3, pp.23~36 (2008)
- Muck RE, "Storage temperature effects on proteolysis in alfalfa silage", Trans. ASAE, 31, pp.1005~1009 (1988)
- Ncobela CN, "A review of the utility of potato by-product as a feed resource for smallholder pig production", Anim. Feed Sci. Technol, 227, pp.107~117 (2017)
- Nelson ML, "Effects of graded levels of potato by-product in barley-and corn-based beef feedlot diets: I. Feedlot performance, carcass traits, meat composition, and appearance", J. Anim. Sci, 78, pp.1829~1836 (2000)
- Omayio DG, "A review of occurrence of glycoalkaloids in potato and potato products", Curr. Res. Nutr. Food Sci, 4, pp.195~202 (2016)
- Dimas Hand Vidya Paradhipta, "Effects of wild or mutated inoculants on rye silage and its rumen fermentation indices", Animal Bioscience, 33(6), pp.949~956 (2020), 아세아·태평양축산학회[DOI]
- STAT user’s guide: Version 9, "SAS", pp.2002, SAS Institute Inc
- Stewart CS, "Factor affecting the cellulolytic activity of rumen contents", Appl. Environ. Microbiol, 33, pp.497~502 (1977)
- Sutton JD, "Rates of production of acetate, propionate, and butyrate in the rumen of lactating dairy cows given normal and low-roughage diets", J. Dairy Sci, 86, pp.3620~3633 (2003)
- Thomas M, "Physical quality of pelleted animal feed 3. Contribution of feedstuff components", Anim. Feed Sci. Technol, 70, pp.59~78 (1998)
- Van Soest PJ, "Methods for dietary fiber, neutral detergent fiber and non-starch polysaccharides in relation to animal nutrition", J. Dairy Sci, 74, pp.3583~3597 (1991)