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Analysis of in situ Ruminal Digestive Characteristics and Nutritive Value of Pumpkin and Carrot Juice Residue for Ruminant Feeds

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  • カボチャならびにニンジンジュース粕の反すう家畜用飼料としての特性
  • カボチャ ナラビニ ニンジンジュース カス ノ ハンスウ カチクヨウ シリョウ ト シテ ノ トクセイ

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Abstract

This experiment was carried out to clarify the possibility of pumpkin and carrot juice residue as feeds. The contents of crude protein (CP) and neutral detergent fiber (NDF) were, respectively, 9.4% and 25.1% in pumpkin, and 7.7% and 31.0% in carrot juice residue. Dry matter (DM) and CP in pumpkin and carrot juice residue showed higher ruminal disappearance than beet pulp at early incubation times. In order to investigate the digestibility and nutritive value of pumpkin and carrot juice residue, four Japanese native goats were fed diets consisting of pumpkin and alfalfa hay cube (35.5 : 64.5 on dry matter basis ; AP feed), carrot juice residue and alfalfa hay cube (35.0 : 65.0 on dry matter basis ; AC feed) and alfalfa hay cube only (A feed). It was estimated that total digestible nutrients, digestible energy, and metabolizable energy were, respectively, 97.3%/DM, 16.90MJ/DMkg and 14.81MJ/DMkg for pumpkin, and 93.0%/DM, 15.66MJ/DMkg and 14.11MJ/DMkg for carrot juice residue. It is suer crested that pumpkin and carrot juice residue are promising new energy feed resources.

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