Qualities & Attributes of Forage Feb Beef with Anibal Pordomingo Part 2 of 4
🎙️ Episode Title: Qualities & Attributes of Forage Feb Beef (Part 2 of 4)
đź“ť Featured Speaker: Anibal Pordomingo
In this second part, Anibal Pordomingo delves deeper into the critical role of forage quality in grass-fed beef production. He explores the impact of forage dry matter, protein balance, and fiber digestibility on animal performance, weight gain, and meat quality. Additionally, Pordomingo examines the influence of backgrounding strategies on beef tenderness, fat composition, and the omega-6 to omega-3 ratio in finished beef.
🔑 Key Points Covered:
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Forage Quality & Animal Performance: Pordomingo explains the importance of managing dry matter, protein, and fiber digestibility to optimize cattle weight gain, meat tenderness, and fat composition. Forages that are too lush can cause reduced intake, while excessive protein levels can lead to low weight gains due to nitrogen excretion.
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Balancing Nutrients for Growth: Achieving the right balance between protein and fiber in forage is essential. Pordomingo warns that high levels of soluble nitrogen from forage can stress cattle and hinder performance if not managed properly.
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Backgrounding Strategies: Pordomingo compares different backgrounding diets, highlighting that high-concentrate diets can negatively impact the omega-6 to omega-3 ratio in the finished beef. Hay-based diets, however, maintain carcass quality if cattle are properly finished on pasture.
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Rumen pH & Fatty Acids: Maintaining an optimal rumen pH during the pasture-finishing phase is crucial for the production of beneficial omega-3 fatty acids. Rumen pH levels below 6.5 can inhibit bacterial activity necessary for a healthy fatty acid profile.
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Impact of Diet on Meat Quality: Pordomingo emphasizes that starch-based concentrates during backgrounding should be avoided due to their negative impact on fatty acid profiles, even if cattle are finished on pasture later.
🌱 Actionable Insights:
- Monitor forage dry matter levels, targeting around 20-22% to avoid lush forages that reduce intake and cause mineral imbalances.
- Balance protein levels in forage to prevent excess nitrogen, which reduces weight gain and requires costly excretion by the animal.
- Ensure forage fiber digestibility is managed to support adequate intake and optimal animal performance.
- Avoid starch-based concentrates during backgrounding to protect the omega-6 to omega-3 ratio in finished beef.
- Maintain a high-fiber diet during backgrounding and ensure adequate pasture-finishing for compensatory gain and proper fat deposition.
- Monitor rumen pH levels during pasture supplementation, aiming for levels above 6.5 to support beneficial omega-3 production.
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