Threonine has limits: a 3-point protein cut is too much
550 broilers aged 21–42 days were fed 17% or 20% protein with 80–120% of NRC threonine. The 17% protein diets reduced weight gain, feed efficiency and antibody response, and even high threonine could not fully bring them back to the control level.
Practical takeawayThreonine can support a mild protein reduction, but a large cut harms both growth and immunity.
Original article
- Authors
- R. Jahanian
- Title
- Threonine Supplementation of Growing Diets Can't Highly Reduce Dietary Crude Protein Requirements of Broiler Chicks
- Published in
- XXIV World's Poultry Congress, Salvador, Brazil (Book of Abstracts), 5–9 August 2012
- Year
- 2012
Conference paper, no online link
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