Abstract
Four ruminally cannulated, Debouillet wethers were used in a 4×4 latin square experiment to evaluate the influence of a forb mix, a shrub mix and alfalfa (ALF) hay on ruminal fermentation characteristics and digesta kinetics of a basal grass hay/straw (GH/S; 1.04% N) diet. The grass hay was mostly blue grama (Bouteloua gracilis) mixed with barley (Hordeum vulgare) straw. Wethers were fed either the GH/S mix (70∶30), GH/S∶ALF (29∶58∶13), GH/S∶forbs (26∶54∶20), or GH/S∶shrubs (26∶54∶20). The forb component consisted of equal parts of scarlet globemallow (Sphaeralcea coccinea) and leatherleaf croton (Croton corymbulosus) while shrubs were composed of equal parts of fourwing saltbush (Atriplex canescens) and mountain mahogany (Cercocarpus montanus). Ruminal pH, ammonia-N, as well as total VFA concentrations and molar proportions of individual VFA did not differ among diets. Particulate passage rates tended (P>0.10) to be greater for diets containing ALF, forbs or shrubs (2.8, 2.9 and 2.8% h−1) than the GH/S diet (2.5% h−1). In situ DM and NDF disappearance of a GH/straw (50∶50) mix did not differ among treatments at most incubation times, except at 96 h when extent of both DM and NDF disappearance were greater (P<0.05) in sheep fed either forbs or shrubs than in those fed other diets.
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References
Annison EF and Armstrong DG (1970) Volatile fatty acid metabolism and energy supply. In: Phillipson AT, ed, Physiology of Digestion and Metabolism in the Ruminant, pp 422–437. Oriel Press, Newcastle, UK
Association of Official Analytical Chemists (AOAC) (1985) Official Methods of Analysis (13th ed). AOAC, Washington, DC
Barry, TN and Manley TR (1984) The role of condensed tannins in the nutrition value ofLotus pedunculatus for sheep. 2. Quantitative digestion of carbohydrates and proteins. Brit J Nutr 51: 493–504
Barton KJ and Hibberd CA (1984) Effects of protein supplementation on ruminal fermentation of low-quality native grass hay in steers. Oklahoma Agric Exp Sta MP-116: 165–167
Bergen WG, Bates DB, Johnson DE, Waller JC and Black JR (1982) Ruminal microbial protein synthesis and efficiency. In: Owens FN, ed, Symposium on Protein Requirements for Cattle, pp 99–112. Oklahoma Agric Exp Sta MP-109
Boutouba A, Holechek JL, Galyean ML, Nunez-Hernandez G, Wallace JD and Cardenas M (1990) Influence of two native shrubs on goat nitrogen status. J Range Manage 43(6): 530–534
Broderick GA and Kang JH (1980) Automated simultaneous determination of ammonia and total amino acids in ruminal fluid and in vitro media. J Dairy Sci 63: 64–75
Campling RC, Freer M and Balch CC (1962) Factors affecting the voluntary intake of food by cows. 3. The effect of urea on the voluntary intake of oat straw. Brit J Nutr 16: 115
Caton JS (1987) Influence of protein supplementation on ruminal and cecal fermentation and digesta kinetics in steers grazing dormant blue grama rangelands and sheep fed low-quality hay. Ph.D. Dissertation. New Mexico State University. Las Cruces, New Mexico, USA
Cheema AU, Galyean ML, Caton JS and Freeman AS (1991) Influence of protein levels and naloxone on intake, nitrogen metabolism and digestion kinetics in lambs fed oat hay or barley straw. Small Ruminant Res 5(1–2): 35–46
Clark RTJ and Bauchop T (1977) Microbial Ecology of the Gut. Academic Press, New York, USA
Coombe JB and Tribe DE (1963) The effect of urea supplements on utilization of straw plus molasses diets by sheep. Aust J Agric Res 14: 70
Funk MA, Galyean ML, Branine ME and Krysl LJ (1987) Steers grazing blue grama rangelands throughout the growing season. I. Dietary composition, intake, digesta kinetics and ruminal fermentation. J Animal Sci 65: 1342–1353
Goering HK and Van Soest PJ (1970) Forage Fibre Analyses (Apparatus, Reagents, Procedures and Some Applications). ARS Agr Handbook 379 USDA, Washington, DC
Goetsch AL and Galyean ML (1983) Influence of feeding frequency on passage fluid and particulate markers in steers fed concentrate diet. Can J Anim Sci 63: 727–730
Guthrie MJ and Wagner DG (1988) Influence of protein or grain supplementation and increasing levels of soybean meal on intake, utilization and passage rate of prairie hay in beef steer's and heifers. J Animal Sci 66: 1529–1537
Hart SP and Polan CE (1984) Simultaneous extraction and determination of ytterbium and cobalt ethylenediaminetetra-acetate complex in faeces. J Diary Sci 67: 888–892
Hennessy DW, Williamson PJ, Nolan JV, Kempton TJ and Leng RA (1983) The role of energy- or protein-rich supplements in the subtropics of young cattle consuming basal diets that are low in digestible energy and protein. J Agric Sci (Camb) 100: 657
Holechek JL, Estell RE, Galyean ML and Richards W (1989a) Chemical composition, in vitro digestibility and in vitro VFA concentration of New Mexico native forages. Grass and Forage Sci 44: 101–105
Holechek, JL, Pieper RD and Herbel CH (1989b) Range Management. Principles and Practices. Prentice-Hall Pub. Co. Englewood Cliffs, NJ, USA
Judkins MB, Wallace JD, Galyean ML, Krysl LJ and Parker EE (1987) Passage rates, rumen fermentation and weight change in protein supplemented grazing cattle. J Range Manage 40: 100–104
Krysl LJ (1986) Influence of nitrogen fertilization on dietary, botanical and chemical composition, intake and digesta kinetics of steers grazing blue gramma rangelands. PhD dissertation. New Mexico State University, Las Cruces, New Mexico, USA
Krysl LJ, Branine ME, Galyean ML, Estell RE and Hoefler WC (1987a) Influence of cottonseed meal supplementation on voluntary intake, ruminal and cecal fermentation, digesta kinetics and serum insulin and growth hormone in mature ewes fed prairie hay. J Animal Sci 64: 1178–1188
Krysl LJ and Galyean ML, Wallace JD, McCollum FT, Judkins MB, Branine ME and Caton JS (1987b) Cattle nutrition on blue grama rangelands in New Mexico. New Mexico Agric Exp Sta Bull 727, 35 pp
mcCollum FT and Galyean ML (1985) Influence of cottonseed meal supplementation on voluntary intake, rumen fermentation and rate of passage of prairie hay in beef steers. J Animal Sci 60: 570–577
McCollum FT, Galyean ML, Krysl LJ and Wallace JD (1985) Cattle grazing blue grama rangelands. I. Seasonal diets and rumen fermentation. J Range Manage 38: 539
Mertens DR (1979) Effects of buffers upon fibre digestion. In: Hale WH and Meinhardt P, eds, Regulation of Acid-Base Balance, pp 65–80. Church and Dwight Company Inc., Piscataway, NJ
Mertens DR and Loften JR (1980) The effect of starch on forage fibre digestion kinetics in vitro. J Dairy Sci 63: 1437–1446
Nunez-Hernandez G, Wallace JD, Holechek JL, Galyean ML and Cardenas M (1991) Condensed tannins and nutrient utilization by lambs and goats fed low-quality diets. J Animal Sci
Orskov ER (1982) Protein Nutrition in Ruminants. Academic Press, New York, 160 pp
Owens FN and Isaacson HR (1977) Ruminal microbial yields: Factors influencing synthesis and by-pass. Fed Proc 36: 198
Parker EE, Donart GB, Pieper RD, Wallace JD and Wright JD (1987) Response of range beef cattle to different grazing management systems. New Mexico Agric Exp Sta Bull 732, 22 pp
Playne JJ and Kennedy PM (1976) Ruminal volatile fatty acids and ammonia in cattle grazing dry tropical pastures. J Agric Sci (Camb) 86: 367
Pond KR, Ellis WC, Ferreiro JH and Sutton JD (1988) Compartment models for estimating attributes of digesta flow in cattle. Brit J Nutr 60: 571–595
Rafique S, Wallace JD, Holechek JL, Galyean ML and Arthun DP (1992) Influence of forbs and shrubs on nutrient digestion and balance in sheep fed grass hay. Small Ruminant Res 7: 113–122
Roffler RE, Schwab CG and Satter LD (1976) Relationship between ruminal ammonia and nonprotein-nitrogen utilization by ruminants. III. Influence of intra-ruminal urea infusion on ruminal ammonia concentration. J Dairy Sci 59: 80
Satter LD and Slyter LL (1974) Effect of ammonia concentration on ruminal microbial protein production in vitro. Brit J Nutr 32: 199
Slyter LL (1986) Ability of pH-selected mixed ruminal microbial populations to digest fibre at various pHs. Appl Environ Microbiol 52: 390
Slyter LL, Satter LD and Dinius DA (1979) Effect of rumina ammonia concentration on nitrogen utilization by steers. J Animal Sci 48: 906–912
Spalinger DE, Robbins CT and Hanley TA (1986) The assessment of handling time in ruminants: The effect of plant chemical and physical structure on the rate of breakdown of plant particles in the rumen of mule deer and elk. Can J Zool 64: 312–321
Statistical Analysis System (SAS) (1985) SAS User's guide: Statistics. SAS Inst. Inc. Cary, NC, USA
Steel RGD and Torrie JH (1982) Principles and Procedures of Statistics (2nd ed). McGraw-Hill Co. New York
Teeter RG, Owens FN and Mader TL (1984) Ytterbium chloride as a marker for particulate matter in the rumen. J Animal Sci 58: 465–473
Theurer CB, Lesperance AL and Wallace JD (1976) Botanical composition of the diets of livestock grazing mature ranges. Arizona Agric Exp Res Station Tech Bull 233, 19 pp
Van Soest PJ (1982) Nutritional Ecology of the Ruminants. O and B Books Inc, Corvallis, OR, USA
Weston RH (1967) Factors limiting the intake of feed by sheep. II. Studies with wheaten hay. Aust J Agric Res 18: 983
Wofford H and Holechek JL (1982) Influence of grind size on 4- and 48-hour in vitro digestibility. Proc West Sec Amer Soc Anim Sci 33: 261
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Rafique, S., Wallace, J.D., Galyean, M.L. et al. Influence of forbs and shrubs on ruminal fermentation and digesta kinetics in sheep fed a grass hay/straw diet. Agroforest Syst 24, 145–156 (1993). https://doi.org/10.1007/BF00706888
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DOI: https://doi.org/10.1007/BF00706888