Manipulation of microbial protein supply and resultant performance of bullocks by increasing straw content in the diet

Animal Research

Volumn 46, Issue 1, 1997, Pages 81-92

  Todorov, N ^a   Ganev, G ^b   Djurbinev, D ^b   Djouvinov, D ^a   Grigorova, R ^b  

^a TRAKIA UNIVERSITY   (Bulgaria)

^b Res Inst of Cattle and Sheep Prod   (Bulgaria)

Author keywords

Dry matter intake; Fattening bullocks; Microbial synthesis; Performance; Protein source

Indexed keywords

HELIANTHUS; TRITICUM AESTIVUM;

EID: 3142550989     PISSN: 16273583     EISSN: None     Source Type: Journal    
DOI: 10.1051/animres:19970108     Document Type: Article

References (25)

1. AOAC (1980) Official Methods of Analysis, 13th edn. Association of Official Analytical Chemists, Washington, DC, 125-142
2. ARC (1984) The Nutrient Requirements of Ruminant Livestock (suppl 1), Commonwealth Agric Bureau, Slough, UK, 45 p
3. Balch C (1950) Factors affecting the utilization of food by dairy cows. 1. The rate of passage of food through the digestive tract. Br J Nutr 4, 361-388
4. Chen XB (1989) Excretion of purine derivatives by sheep and cattle and its use for the estimation of absorbed microbial protein. Ph D thesis, University of Aberdeen, Aberdeen, UK
5. Demeyer D, Tamminga S (1987) Microbial protein yield and its prediction. In: Agriculture: Feed Evaluation and Protein Requirement Systems for Ruminants. Proceedings of CEC seminar held in Brussels. Belgium, 25-27 June 1986 (R Jarrige, G Alderman, eds), CEC, Luxembourg, 129-141
6. Djouvinov D, Todorov N (1994) Influence of dry matter intake and passage rate on microbial protein synthesis in the rumen of sheep and its estimation by cannulation or by non invasive method. Anim Feed Sci Technol 48, 289-304
7. Forbes J (1986) The voluntary food intake of farm animals. Butterworths, London, UK
8. Fujihara T, Ørskov E, Reeds P, Kyle D (1987) The effect of protein infusion on urinary excretion of purine derivatives in ruminants nourished by intragastric nutrition. J Agric Sci (Camb) 109, 7-12
9. Hopper TH (1944) Methods of estimating physical and chemical composition of cattle. J Agric Res 68, 239-268
10. Madsen J (1985) The basis for the proposed Nordic protein evaluation system for ruminants. The AAT-PBV system. Acta Agric Scand 25 (suppl), 9-20
11. Maentysaari P (1993) The effect of feeding level and protein source of the diet on growth and development at slaughter of pre-pubertal heifers. Acta Agric Scand 43, 44-51
12. McDonald I (1981) A revised model for the estimation of protein degradability in the rumen. J Agric Sci (Camb) 96, 251-252
13. Mudgal V, Dixon MR, Kennedy P, Milligan M (1982) Effect of two intake levels on retention times of liquid, particle and microbial markers in the rumen of sheep. J Anim Sci 54, 1051-1055
14. NRC (1985) Ruminant Nitrogen Usage. National Academic Press, Washington, DC, USA
15. Ørskov E, McDonald I (1979) The estimation of protein degradability in the rumen from incubation measurements weighed according to rate of passage. J Agric Sci (Camb) 92, 499-503
16. Platikanov N, Todorov N, Djurbinev D (1985) Comparison of Kellner's system and new DDR system for energy feed evaluation, and effect of pelleting and sodium hydroxide treatment of straw on the fattening of bullocks. Zhivotnovadni nauki 22, 17-27 [in Bulgarian]
17. Slabbert N, Campcher JP, Shelby T, Leeuw KJ, Kuen G, Meissner H (1992) Influence of dietary energy concentration and feed intake level on feedlot steers. S Afr J Anim Sci 22, 107-114
18. Sokac S, Petricivic A, Sencic D (1991) Klaonicka obiljezja tovne junadi hranjene obrocima s razlicitim odnosom energije iz voluminoznih i koncentriranih krmiva. Krmiva 33, 127-130
19. Tamminga S (1980) Energy-protein relationships in ruminant feeding: similarities and differences between rumen fermentation and post ruminal utilization. In: Proc 5th Int Symp Fish Meal Manuf (EL Miller, IM Pike, eds), Butterworths, London, UK, 2-17
20. Tamminga S (1981) Effect of the roughage:concentrate ratio on nitrogen entering the small intestine of dairy cows. Proefschrift, Landbouwhogeschool Wageningen, The Netherlands, 65-77
21. Tamminga S, Van der Koelen C, Van Vuuren A (1979) The effect of level of feed intake on nitrogen entering the small intestine of dairy cows. Livest Prod Sci 6, 255-262
22. Todorov N (1995) Nutrient Requirements of Cattle and Buffalo. Publishing House NIS-UZVM, Stara Zagora, Bulgaria [in Bulgarian with English headings and summary]
23. Vérité R, Peyraud J (1989) Protein: the PDI system. In: Ruminant Nutrition: Recommended Allowances and Feed Tables (R Jarrige, ed), INRA, Paris, France, 33-46
24. Zakhariev Z, Pincas A (1979) Methods for Carrying Experiments, Slaughter Analysis and Estimation of the Quality of Meat from Large Ruminants. NAPS, Sofia, Bulgaria [in Bulgarian]
25. Zinn R, Owens F (1982) Predicting net uptake of non-ammonia nitrogen from the small intestine. In: Protein Requirements for Cattle. Oklahoma State University, Stillwater, OK, USA, 133-140