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Chemical composition and in vitro digestibility of certain commonly used feedstuffs in ruminant rations

Chemical composition and in vitro digestibility of certain commonly used feedstuffs in ruminant rations

Indian Journal of Dairy Science 57(2): 114-117

Studies were conducted to evaluate the chemical composition, in vitro dry matter, organic matter and neutral detergent fibre (NDF) digestibility of commonly used feedstuffs such as expelled groundnut cake, deoiled groundnut cake, extracted cottonseed, expelled cottonseed cake, rapeseed extraction, expelled chilliseed cake, deoiled chilliseed cake, maize gluten meal-60, palm kernel meal, extracted salseed, navane (Setaria italica), wheat bran, deoiled rice bran, maize grain, jowar grain, deoiled silkworm pupae and silkworm pupae. Among the feedstuffs studied, the highest crude protein (CP) was observed in deoiled silkworm pupae (72.07%) and the lowest in jowar grain (5.03%). CF, NDF and ADF were highest in palm kernel meal at 42.79, 84.57 and 64.5, respectively. Nitrogen free extract content was highest in jowar (87.69%) and maize grain (86.45%) and lowest in deoiled silkworm pupae (9.02%). The highest in vitro digestibility (IVDMD and IVOMD), i.e. >70%, was observed in maize grain and jowar grain, followed by maize gluten meal-60, expelled groundnut cake, Setaria italica, deoiled groundnut cake, extracted salseed, extracted rapeseed, wheat bran, extracted cottonseed and silk worm pupae. Higher IVNDFD values (>50%) was observed in jowar grain, maize gluten meal-60, maize grain, Setaria italica, extracted rapeseed, and extracted salseed. However, long-term studies are required to make use of the feedstuffs such as silkworm pupae, deoiled silkworm pupae and expelled and deoiled chilliseed cake in ruminant rations.

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