Effects of reducing inclusion rate of roughages by changing roughage sources and concentrate types on intake, growth, rumen fermentation characteristics, and blood parameters of Hanwoo growing cattle (Bos Taurus coreanae)
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Objective: Reducing roughage feeding without negatively affecting rumen health is of interest in ruminant nutrition. We investigated the effects of roughage sources and concentrate types on growth performance, ruminal fermentation, and blood metabolite levels in growing cattle. Methods: In this 24-week trial, 24 Hanwoo cattle (224±24.7 kg) were fed similar nitrous and energy levels of total mixed ration formulated using two kinds of roughage (timothy hay and ryegrass straw) and two types of concentrate mixes (high starch [HS] and high fiber [HF]). The treatments were arranged in a 2×2 factorial, consisting of 32% timothy–68% HS, 24% timothy–76% HF, 24% ryegrass–76% HS, and 17% ryegrass–83% HF. Daily feed intakes were measured. Every four weeks, blood were sampled, and body weight was measured before morning feeding. Every eight weeks, rumen fluid was collected using a stomach tube over five consecutive days. Results: The mean dry matter intake (7.33 kg) and average daily gain (1,033 g) did not differ among treatments. However, significant interactions between roughage source and concentrate type were observed for the rumen and blood parameters (p<0.05). Total volatile fatty acid concentration was highest (p<0.05) in timothy–HF-fed calves. With ryegrass as the roughage source, decreasing the roughage inclusion rate increased the molar proportion of propionate and decreased the acetate-to-propionate ratio; the opposite was observed with timothy as the roughage source. Similarly, the effects of concentrate types on plasma total protein, alanine transaminase, Ca, inorganic P, total cholesterol, triglycerides, and creatinine concentrations differed with roughage source (p<0.05). Conclusion: Decreasing the dietary roughage inclusion rate by replacing forage neutral detergent fiber with that from non-roughage fiber source might be a feasible feeding practice in growing cattle. A combination of low-quality roughage with a high fiber concentrate might be economically beneficial.
Abstract
Objective: Reducing roughage feeding without negatively affecting rumen health is of interest in ruminant nutrition. We investigated the effects of roughage sources and concentrate types on growth performance, ruminal fermentation, and blood metabolite levels in growing cattle. Methods: In this 24-week trial, 24 Hanwoo cattle (224±24.7 kg) were fed similar nitrous and energy levels of total mixed ration formulated using two kinds of roughage (timothy hay and ryegrass straw) and two types of concentrate mixes (high starch [HS] and high fiber [HF]). The treatments were arranged in a 2×2 factorial, consisting of 32% timothy–68% HS, 24% timothy–76% HF, 24% ryegrass–76% HS, and 17% ryegrass–83% HF. Daily feed intakes were measured. Every four weeks, blood were sampled, and body weight was measured before morning feeding. Every eight weeks, rumen fluid was collected using a stomach tube over five consecutive days. Results: The mean dry matter intake (7.33 kg) and average daily gain (1,033 g) did not differ among treatments. However, significant interactions between roughage source and concentrate type were observed for the rumen and blood parameters (p<0.05). Total volatile fatty acid concentration was highest (p<0.05) in timothy–HF-fed calves. With ryegrass as the roughage source, decreasing the roughage inclusion rate increased the molar proportion of propionate and decreased the acetate-to-propionate ratio; the opposite was observed with timothy as the roughage source. Similarly, the effects of concentrate types on plasma total protein, alanine transaminase, Ca, inorganic P, total cholesterol, triglycerides, and creatinine concentrations differed with roughage source (p<0.05). Conclusion: Decreasing the dietary roughage inclusion rate by replacing forage neutral detergent fiber with that from non-roughage fiber source might be a feasible feeding practice in growing cattle. A combination of low-quality roughage with a high fiber concentrate might be economically beneficial.
참고문헌 (35)
- K J Cheng, "A review of bloat in feedlot cattle.", Journal of Animal Science, 76(1), pp.299~308 (1998), Oxford University Press (OUP)[DOI]
- H. Maktabi, "Effects of substituting grain with forage or nonforage fiber source on growth performance, rumen fermentation, and chewing activity of dairy calves", Animal Feed Science and Technology, 221, pp.70~78 (2016), Elsevier BV[DOI]
- 기광석, "Evaluation of the nutritional value of locally produced forage in Korea using chemical analysis and in vitro ruminal fermentation", Animal Bioscience, 30(3), pp.355~362 (2017), 아세아·태평양축산학회[DOI]
- Galyean M, "Effects of roughage source and level on intake by feedlot cattle", J Anim Sci, 81(Suppl 2), pp.E8~E16 (2003)[DOI]
- M.L. Eastridge, "Feeding equivalent concentrations of forage neutral detergent fiber from alfalfa hay, grass hay, wheat straw, and whole cottonseed in corn silage based diets to lactating cows", Animal Feed Science and Technology, 150(1-2), pp.86~94 (2009), Elsevier BV[DOI]
- Jun Xu, "Effects of Forage Sources on Rumen Fermentation Characteristics, Performance, and Microbial Protein Synthesis in Midlactation Cows", Animal Bioscience, 27(5), pp.667~673 (2014), 아세아·태평양축산학회[DOI]
- J. T. Hsu, "Evaluation of Corn Fiber, Cottonseed Hulls, Oat Hulls and Soybean Hulls as Roughage Sources for Ruminants", Journal of Animal Science, 65(1), pp.244~255 (1987), Oxford University Press (OUP)[DOI]
- S.J. Weidner, "Soyhulls as a Replacement for Forage Fiber in Diets for Lactating Dairy Cows", Journal of Dairy Science, 77(2), pp.513~521 (1994), American Dairy Science Association[DOI]
- Miron J, "Soybean hulls as a replacement of forage neutral detergent fiber in total mixed rations of lactating cows", Anim Feed Sci Technol, 106, pp.20~28 (2003)[DOI]
- G. Adin, "Effect of feeding cows in early lactation with diets differing in roughage-neutral detergent fiber content on intake behavior, rumination, and milk production", Journal of Dairy Science, 92(7), pp.3364~3373 (2009), American Dairy Science Association[DOI]
- Seongwon Seo, "Guidelines for experimental design and statistical analyses in animal studies submitted for publication in the Asian-Australasian Journal of Animal Sciences", Asian-Australasian Journal of Animal Sciences, 31(9), pp.1381~1386 (2018), Asian Australasian Association of Animal Production Societies[DOI]
- National Research Council, "Nutrient requirements of beef cattle" (2000), National Academy Press
- 이민경, "Changes in the ruminal fermentation and bacterial community structure by a sudden change to a high-concentrate diet in Korean domestic ruminants", Animal Bioscience, 32(1), pp.92~102 (2019), 아세아·태평양축산학회[DOI]
- 서성원, "Evaluation of feed value of a by-product of pickled radish for ruminants: analyses of nutrient composition, storage stability, and in vitro ruminal fermentation", 한국축산학회지, 58(9), pp.1~9 (2016), 한국축산학회
- Fox DG, "The Cornell Net Carbohydrate and Protein System model for evaluating herd nutrition and nutrient excretion", Anim Feed Sci Technol, 112, pp.29~78 (2004)[DOI]
- Leng RA, "Factors affecting the utilization of ‘poor-quality’ forages by ruminants particularly under tropical conditions", Nutr Res Rev, 3, pp.277~303 (1990)[DOI]
- Dado R, "Variation in and relationships among feeding, chewing, and drinking variables for lactating dairy cows", J Dairy Sci, 77, pp.132~144 (1994)[DOI]
- J. Salinas-Chavira, "Influence of forage NDF level, source and pelletizing on growth performance, dietary energetics, and characteristics of digestive function for feedlot cattle", Animal Feed Science and Technology, 183(3-4), pp.106~115 (2013), Elsevier BV[DOI]
- Bhatti S, "Kinetics of hydration and functional specific gravity of fibrous feed by-products", J Anim Sci, 73, pp.1449~1458 (1995)[DOI]
- Seo S, "Development and evaluation of empirical equations to predict feed passage rate in cattle", Anim Feed Sci Technol, 128, pp.67~83 (2006)[DOI]
- Abdelhadi LO, "Corn silage versus grain sorghum silage as a supplement to growing steers grazing high quality pastures : effects on performance and ruminal fermentation", Anim Feed Sci Technol, 127, pp.33~43 (2006)[DOI]
- B. D. Highfill, "Effects of High Fiber Energy Supplements on Fermentation Characteristics and In Vivo and In Situ Digestibilities of Low Quality Fescue Hay", Journal of Animal Science, 65(1), pp.224~234 (1987), Oxford University Press (OUP)[DOI]
- M.H. Poore, "Response of Lactating Holstein Cows to Diets Varying In Fiber Source and Ruminal Starch Degradabllity", Journal of Dairy Science, 76(8), pp.2235~2243 (1993), American Dairy Science Association[DOI]
- Jan Dijkstra, "The role of dynamic modelling in understanding the microbial contribution to rumen function", Nutrition Research Reviews, 15(01), pp.67~90 (2002), CABI Publishing[DOI]
- A. Javaid, "Ruminal dynamics of ad libitum feeding in buffalo bulls receiving different level of rumen degradable protein", Livestock Science, 135(1), pp.98~102 (2011), Elsevier BV[DOI]
- Ndlovu T, "Assessing the nutritional status of beef cattle: current practices and future prospects", African Journal of Biotechnology, 6(24), pp.2727~2734 (2007), Academic Journals[DOI]
- Agenäs S, "Indicators of undernutrition in cattle", Anim Welf, 15, pp.149~160 (2006)
- Doornenbal H, "Reference values of blood parameters in beef cattle of different ages and stages of lactation", Can J Vet Res, 52, pp.99~105 (1988)
- Säkkinen H, "Variation in the blood chemical constituents of reindeer: Significance of season, nutrition and other extrinsic and intrinsic factors" (2005), Acta Univesitatis Ouluensis
- C.K. Reynolds, "Splanchnic Metabolism of Dairy Cows During the Transition From Late Gestation Through Early Lactation", Journal of Dairy Science, 86(4), pp.1201~1217 (2003), American Dairy Science Association[DOI]
- JC O'kelly, "Comparative Studies of Lipid Metabolism in Zebu and British Cattle in a Tropical Environment. II. Blood Lipid Levels of Cattle on Different Diets", Australian Journal of Biological Sciences, 21(5), pp.1025~1032 (1968), CSIRO Publishing[DOI]
- G. Campanile, "Growth, metabolic status and ovarian function in buffalo (Bubalus bubalis) heifers fed a low energy or high energy diet", Animal Reproduction Science, 122(1-2), pp.74~81 (2010), Elsevier BV[DOI]
- Ariëtte T.M. van Knegsel, "Effect of dietary energy source on energy balance, production, metabolic disorders and reproduction in lactating dairy cattle", Reproduction Nutrition Development, 45(6), pp.665~688 (2005), EDP Sciences[DOI]
- A.T.M. van Knegsel, "Effect of Glucogenic vs. Lipogenic Diets on Energy Balance, Blood Metabolites, and Reproduction in Primiparous and Multiparous Dairy Cows in Early Lactation", Journal of Dairy Science, 90(7), pp.3397~3409 (2007), American Dairy Science Association[DOI]
- Rowlands G., "A review of variations in the concentrations of metabolites in the blood of beef and dairy cattle associated with physiology, nutrition and disease, with particular reference to the interpretation of metabolic profiles", World Rev Nutr Diet, 35, pp.172~235 (1980)