2024-06-04 ペンシルベニア州立大学(PennState)
Pennsylvania is the foremost producer of mushrooms in the U.S., accounting for 64% of all button mushrooms produced in the country from 2021 to 2023, according to the U.S. Department of Agriculture’s National Agricultural Statistics Service. Consequently, a lot of mushroom stump waste is available. Credit: WS Studio/Getty Images. All Rights Reserved.
＜関連情報＞
- https://www.psu.edu/news/research/story/mushroom-stump-waste-could-be-inexpensive-healthy-chicken-feed-supplement/
- https://www.sciencedirect.com/science/article/pii/S1056617124000205
ブロイラー用飼料にキノコの切り株廃棄物を配合した場合のアミノ酸消化率およびd1-21成績に及ぼす影響 Effects of mushroom stump waste inclusions to broiler diets on amino acid digestibility and d1–21 performance
L.S. Erb, C.M. Poholsky, A.M. Lyons, J.W. Boney
Journal of Applied Poultry Research Available online: 23 February 2024
DOI:https://doi.org/10.1016/j.japr.2024.100421
SUMMARY
Mushroom cultivation in the United States generates a considerable waste stream of inutile mushroom stumps. Stumps were dried and ground to create the current study’s mushroom stump waste (MSW) product. This study aimed to determine the energy and amino acid profile of MSW and the optimal inclusion of MSW in broiler diets based on performance measurables and amino acid digestibility. The TMEn of MSW (1,173 kcal/kg) and proximate analysis results were used to formulate broiler diets containing 0% and 5% MSW which were blended to create experimental diets containing 1, 2, 3, and 4% MSW. Day 21 performance results indicate birds consuming 1% MSW improved LWG by 57.6 g per bird compared to birds fed 5% MSW. Birds fed 0, 2, 3 or 4% MSW were intermediate for LWG (P = 0.024). Broilers provided 1% MSW improved average body weight (BW) compared to those fed 4 or 5% MSW. Birds consuming 0, 2, or 3% were intermediate for BW (P = 0.026). Birds fed 1% MSW improved FCR by 0.105 compared to those fed 5% MSW. Broilers consuming 0, 2, 3 or 4% MSW were intermediate for FCR (P = 0.0002). Neither mortality nor feed intake were affected by MSW inclusion (P > 0.05). Although 16 of the 19 reported AA had reduced AIAAD when MSW was included (P < 0.05), amino acid digestibility coefficients were not affected by MSW inclusion (P > 0.05). These data support MSW inclusion in broiler diets up to 3% without detriment to performance or amino acid digestibility coefficients.
