Scholarlink

<p>Rising costs and environmental concerns are driving the search for sustainable alternatives to soybean meal (SBM), the predominant protein source in dairy cattle diets, due to its economic volatility and environmental footprint. This review examines blood meal (BM), feather meal (FM), and SDBC as potential protein sources for dairy diets, focusing on their chemical composition, nutrient utilization, and effects on lactating dairy cows’ performance. These animal-derived proteins offer high protein content and balanced amino acid profiles, making them viable SBM substitutes. BM and FM are known for their high rumen undegradable protein (RUP) content, which refers to the portion of dietary protein that escapes degradation in the rumen and is digested in the small intestine, thereby supporting greater amino acid absorption and milk production. Similarly, SDBC provides additional nutritional benefits, including high digestibility and antioxidant properties. Despite advantages, challenges such as palatability, amino acid imbalances, and digestibility issues limit their widespread adoption. Proper processing and supplementation can address these concerns, promoting a more sustainable approach to dairy nutrition. Future research should investigate higher inclusion levels of BM, FM, and SDBC in dairy diets to enhance our understanding of their effects on nutrient utilization, milk production, and overall sustainability.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Blood meal, feather meal, and spray-dried blood cells in dairy diets: a review

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年7月13日

查看全文
  • C. A. Hammond,
  • A. P. Faciola

摘要

Rising costs and environmental concerns are driving the search for sustainable alternatives to soybean meal (SBM), the predominant protein source in dairy cattle diets, due to its economic volatility and environmental footprint. This review examines blood meal (BM), feather meal (FM), and SDBC as potential protein sources for dairy diets, focusing on their chemical composition, nutrient utilization, and effects on lactating dairy cows’ performance. These animal-derived proteins offer high protein content and balanced amino acid profiles, making them viable SBM substitutes. BM and FM are known for their high rumen undegradable protein (RUP) content, which refers to the portion of dietary protein that escapes degradation in the rumen and is digested in the small intestine, thereby supporting greater amino acid absorption and milk production. Similarly, SDBC provides additional nutritional benefits, including high digestibility and antioxidant properties. Despite advantages, challenges such as palatability, amino acid imbalances, and digestibility issues limit their widespread adoption. Proper processing and supplementation can address these concerns, promoting a more sustainable approach to dairy nutrition. Future research should investigate higher inclusion levels of BM, FM, and SDBC in dairy diets to enhance our understanding of their effects on nutrient utilization, milk production, and overall sustainability.