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The effect of phenological stage and season on nutritive value, chemical composition and nutrient digestibility of lucerne (Medicago sativa L.) green forage in the alimentary tract of cattle

Author

Listed:
  • B. Niwińska

    (Department of Animal Nutrition, Research Institute of Animal Production, Balice, Poland)

  • J.A. Strzetelski

    (Department of Animal Nutrition, Research Institute of Animal Production, Balice, Poland)

  • J. Kowalczyk

    (The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, Poland)

  • F. Borowiec

    (Department of Animal Nutrition, Cracow Agricultural University, Kraków, Poland)

  • P. Domański

    (Research Centre for Cultivars Testing, Słupia Wielka, Poland)

Abstract

Green forage of fourteen lucerne varieties grown at four Experimental Stations of the Research Centre for Cultivar Testing in Słupia Wielka was harvested in these stages: the first growth in the budding stage (cut I), re-growths in the pre-bloom stage of maturity (cut II) 35 days after the first cut, and the next cut, 42 days later (cut III). Three bulls equipped with rumen and duodenal cannulas were used to study rumen degradability by the nylon bag technique and intestinal digestibility by the mobile bag method. The nutritive value of lucerne green forage was estimated according to IZ-INRA (2001) feed evaluation system. The composition of the lucerne cuts differed in DM content (P < 0.01); the highest was found in cut III (226.9 g/kg), the lowest in cut II (182.0 g/kg).The crude protein content (CP) in DM of cuts I and II was similar (P > 0.05) but lower in cut III (P < 0.05). Cut II contained the highest (P < 0.05) levels of crude fibre, neutral detergent fibre (NDF), acid detergent fibre (ADF), cellulose (CE), and acid detergent lignin (ADL), and the lowest of non-structural carbohydrates (NFC) and soluble in neutral detergent cell content (CC), (P < 0.01). The differences between cut I and III in the contents of these components were not significant (P > 0.05). The highest DM digestibility in the total alimentary tract was found for cut I (P < 0.05). The DM of cuts II and III was digested at a similar rate (P > 0.05). There were no significant differences between the cuts in effective degradability, digestibility in the small intestine of the fraction not digested in the forestomachs and total digestibility of CP, CF, NDF, ADF, hemicellulose and cellulose (P > 0.05). The digestion of rumen undegraded CP in the post-rumen part of the alimentary tract was lower compared with the digestion of essential amino acids (81% and 98%; respectively). The first cut harvested in the spring in the budding stage contained about 5% more PDIA and PDIN, but 7% less LFU compared with both cuts of regrowth (cuts II and III) which contained on average: 58 g PDIA; 123 g PDIN and 0.93 kg LFU. All the cuts contained similar levels of PDIE, UFL per kg of DM (106 and 0.76 g, respectively).

Suggested Citation

  • B. Niwińska & J.A. Strzetelski & J. Kowalczyk & F. Borowiec & P. Domański, 2005. "The effect of phenological stage and season on nutritive value, chemical composition and nutrient digestibility of lucerne (Medicago sativa L.) green forage in the alimentary tract of cattle," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 50(11), pages 511-518.
  • Handle: RePEc:caa:jnlcjs:v:50:y:2005:i:11:id:4256-cjas
    DOI: 10.17221/4256-CJAS
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    Citations

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    Cited by:

    1. P. Homolka & V. Koukolová & Z. Němec & Z. Mudřík & B. Hučko & J. Sales, 2008. "Amino acid contents and intestinal digestibility of lucerne in ruminants as influenced by growth stage," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 53(12), pages 499-505.
    2. J. Hakl & J. Šantrůček & P. Fuksa & L. Krajíc, 2010. "The use of indirect methods for the prediction of lucerne quality in the first cut under the conditions of Central Europe," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 55(6), pages 258-265.
    3. L. Kolář & J. Frelich & J. Brouček & S. Kužel & J. Borová-Batt & J. Peterka & M. Šlachta & K. Volfová & J. Pezlarová & J. Hřebečková & V. Čechová, 2010. "Anaerobic degradability of organic matter of cattle faeces and a possibility of its utilization," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 55(12), pages 538-547.
    4. L. Kolář & M. Maršálek & J. Frelich & S. Kužel & P. Smetana & J. Zedníková & M. Švecová, 2009. "Changes in methane release from organic matter passing through the digestive tract of horses," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 54(3), pages 112-120.

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