The study was performed on 630 Cherry Valley ducks reared from 1 to 42 days in China.
DL-HMTBA was found as efficient as DL-Methionine to sustain Cherry Valley ducks’ growth performance concerning body, carcass, breast or feather weights.
In addition, methionine efficacy determined as the extra methionine intake per extra weight gain shows similar values between DL-Met and DL-HMTBA. The calculation of bio-efficacy on this criteria confirms that DL-Met and DL-HMTBA have the same bio-efficacy on body weight gain.
No significant difference of feather weight or yield was observed between DL-Met and DL-HMTBA independently to the age. The two methionine sources promote feather growth in the same way.
This study shows that DL-HMTBA is 100% efficient to sustain growth performance and feather development of Cherry Valley ducks.
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