DOI QR코드

DOI QR Code

EFFECT OF SUPPLEMENTATION WITH PROTEIN MEAL ON THE GROWTH OF CATTLE GIVEN A BASAL DIET OF UNTREATED OR AMMONIATED RICE STRAW

  • Perdok, H.B. (CAF) ;
  • Leng, R.A. (Department of Biochemistry, Microbiology and Nutrition, University of New England)
  • Received : 1990.02.26
  • Accepted : 1990.06.25
  • Published : 1990.12.01

Abstract

A 98 d feeding trial carried out to study liveweight change and rumen metabolites in heifers weighing initially 275 kg and given either untreated or ammoniated rice straw supplemented with 0, 0.4, 0.8 or 1.2 kg protein meal consisting of cottonseed meal (60). All 32 animals received 0.6 kg rice polishings/hd/d and had continuous access to molasses/urea block-licks containing 15% urea. The effects on growth rates of treatment of the straw with ammonia and of supplementation with bypass protein were additive. The heifers fed ammoniated straw grew 267 g/hd/d (p<0.001) faster and consumed 11% (p<0.05) more straw than the heifers on untreated straw. The mean growth response to bypass protein was 0.37 kg gain/kg protein meal supplied. Supplementation with protein meal tended (p=0.06) to depress intake of straw, but straw intakes of the unsupplemented groups were high. Small changes in the composition of the block-licks that were fed throughout the feeding trial led to changes in block intake and in intake of untreated straw. Increasing quantities of protein meal fed were associated with linear increase in concentrations of ammonia (p<0.05) and in molar percentages of iso-butyrate (p<0.01), iso-valerate (p<0.01) and valerate (p<0.01) in the rumen fluid of the heifers on a basal diet of untreated straw. However, in the rumen fluid of the heifers given ammoniated straw, the levels of these metabolities were not affected by the quantity of protein meal given.

Keywords

Acknowledgement

Supported by : Australinan Centre for International Agricultural Research

Cited by

  1. Nutrient digestibility and ruminal fermentation characteristic in swamp buffaloes fed on chemically treated rice straw and urea vol.44, pp.3, 2012, https://doi.org/10.1007/s11250-011-9946-6
  2. Rumen metabolism of swamp buffaloes fed rice straw supplemented with cassava hay and urea vol.48, pp.4, 2016, https://doi.org/10.1007/s11250-016-1026-5
  3. Effects of crude glycerin from waste vegetable oil supplementation on feed intake, ruminal fermentation characteristics, and nitrogen utilization of goats vol.48, pp.5, 2016, https://doi.org/10.1007/s11250-016-1047-0
  4. Responses to various protein and energy supplements by steers fed low-quality tropical hay. 1. Comparison of response surfaces for young steers vol.57, pp.3, 2017, https://doi.org/10.1071/AN15659
  5. Responses to various protein and energy supplements by steers fed low-quality tropical hay. 2. Effect of stage of maturity of steers vol.57, pp.3, 2017, https://doi.org/10.1071/AN15660
  6. Digestion and passage kinetics of fibre in mature dairy heifers maintained on poor quality hay as affected by the source and level of nitrogen supplementation vol.109, pp.1, 2003, https://doi.org/10.1016/s0377-8401(03)00211-6
  7. Effects of Replacing Ground Corn with Cassava Chip in Concentrate on Feed Intake, Nutrient Utilization, Rumen Fermentation Characteristics and Microbial Populations in Goats vol.20, pp.10, 2007, https://doi.org/10.5713/ajas.2007.1557
  8. Effect of Roughage Sources on Cellulolytic Bacteria and Rumen Ecology of Beef Cattle vol.20, pp.11, 2007, https://doi.org/10.5713/ajas.2007.1705
  9. Effect of Levels of Supplementation of Concentrate Containing High Levels of Cassava Chip on Rumen Ecology, Microbial N Supply and Digestibility of Nutrients in Beef Cattle vol.20, pp.1, 2007, https://doi.org/10.5713/ajas.2007.75
  10. Nutrition and feeding of swamp buffalo: feed resources and rumen approach vol.6, pp.suppl2, 2007, https://doi.org/10.4081/ijas.2007.s2.67
  11. Effect of Feeding Rubber Seed Kernel and Palm Kernel Cake in Combination on Nutrient Utilization, Rumen Fermentation Characteristics, and Microbial Populations in Goats Fed on Briachiaria humidicola H vol.24, pp.1, 2011, https://doi.org/10.5713/ajas.2011.10171
  12. Sunnhemp (Crotalaria juncea, L.) silage can enrich rumen fermentation process, microbial protein synthesis, and nitrogen utilization efficiency in beef cattle crossbreds vol.53, pp.1, 1990, https://doi.org/10.1007/s11250-021-02628-z