Nutritive value of evening primrose (Oenothera paradoxa) cake for ruminants
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Research Institute of Animal Production, Department of Animal Physiology and Nutrition, 32-083 Bailce, Poland
The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
Publication date: 1998-03-25
J. Anim. Feed Sci. 1998;7(2):187–195
The nutritive value of evening primrose (Oenothera paradoxa) oil cake was estimated from chemical composition and nutrient digestibility. The cake contained on average (per kg): 210 g crude protein, 0.55 UFL, 0.44 UFV, 110 PDI (PDIE - PDIN = - 22 g), 92 g PDIA and 100 g of ether extract. The proportion of methionine and cystine in cake was relatively high (1.97 and 2.17 g/16 g N) but that of lysine was rather low (2.00 g/16 g N). Linoleic (C18:2 n-6) - 73.1%, γ-linolenic (C18:3 n-6) - 9,0% and oleic (C18:1 n-9) - 6.4% acids dominated in total fatty acid content. Rumen degradability and intestinal digestion coefficients of protein of evening primrose oil cake or seeds were 0.39 and 0.65, respectively.
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