PMID: 9638305Jun 25, 1998Paper

Effect of different technical treatments of rapeseed on the feed value for broilers and laying hens

Archiv für Tierernährung
S DänickeR Löwe

Abstract

The effect of different technical treatments of rapeseed on its feed value for broilers and laying hens was the object of the study. The technical treatments comprised different grinding procedures (whole seed, roller mill--coarse and fine adjustment, flake mill) resulting in different average particle sizes of the ground seed and thermal treatments of flaked seed (hydrothermal treatment, micronizer, jet sploder). Each thermal treatment was carried out at two temperatures. A marked increase in the digestibility of organic matter and of the AMEN content was observed as the average particle size of the seed was decreased to < or = 0.56 mm and was much more pronounced for the broilers. AMEN contents of 21.1 to 22 and 22.6 to 23 MJ/kg DM were observed at this particle sizes for broilers and hens, respectively. Thermal treatment of rapeseed improved the apparent crude fat digestibility slightly whereas the apparent crude protein digestibility tended to decrease especially at the higher temperatures. This resulted in inconsistent changes in the apparent digestibility of the organic matter and the AMEN content. Only the treatment with hot air (jet sploder) seemed to have preferential effects on the feed value for both broilers and hen...Continue Reading

References

Mar 1, 1988·British Poultry Science·T R Morris, R M Gous
May 1, 1985·The Journal of Nutrition·A Krogdahl
Feb 1, 1974·European Journal of Clinical Investigation·H J Weis, J M Dietschy
Jul 1, 1981·The Journal of Surgical Research·L R SehgalG S Moss
Apr 1, 1960·The Journal of Nutrition·M R FeddeR E Burger

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