Digestive, fermentative, and physical properties of pineapple residue as a feed for cattle

Chunyan Liu, Sanae Asano, Hikonosuke Ogata, Shun Ito, Takumi Nakase, Sui Takeda, Kyougo Miyoshi, Youichi Numata, Kei Takahashi, Hiroshi Kajikawa

研究成果: ジャーナルへの寄稿記事査読

8 被引用数 (Scopus)

抄録

The intake, digestion, and ruminal fermentation properties; the antioxidative activity; and the physical effectiveness of pineapple residue (PR) from the cut-fruit industry as a feed for cattle were investigated. Four nonlactating Holstein cows were fed a basal diet and diets with 1.4- and 3.6-kg dry matter (DM)/day of PR (low-PR and high-PR diets, respectively). The DM digestibility and total digestible nutrients were 71% and 70%, respectively. Ruminal pH, volatile fatty acids, and ammonia-N did not differ among the diets. The numbers of total viable, amylolytic, cellulolytic, and methanogenic bacteria and protozoa, and microbial protein synthesis in the rumen also did not differ significantly. Blood triglyceride, nonesterified fatty acids, urea nitrogen, and aspartate transaminase were lower in the high-PR diet. Feeding PR did not affect blood malondialdehyde, although PR has a higher antioxidative value than other commonly used feeds. The particle distribution of PR satisfied the recommended range for haylage. The chewing time for ingestion and rumination did not change with PR content, and the roughage value index of PR was 57-min/kg DM. These results suggest that PR has good intake and digestion properties and satisfactory physical effectiveness. Even a high-PR-content feed unlikely induces the risk of ruminal acidosis.

本文言語英語
論文番号e13535
ジャーナルAnimal Science Journal
92
1
DOI
出版ステータス出版済み - 1 1月 2021

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