TY - JOUR AU - Kaewtapee, Chanwit AU - Bunchasak, Chaiyapoom PY - 2019/03/25 Y2 - 2024/03/29 TI - Comparative effect of DL-methionine and DL-methionine hydroxy analogue supplemented diet on productive performance, fat accumulation and lipid profile in blood of meat-type ducks JF - The Thai Journal of Veterinary Medicine JA - TJVM VL - 48 IS - 4 SE - Original Articles DO - UR - https://he01.tci-thaijo.org/index.php/tjvm/article/view/179858 SP - 645-653 AB - <p><span class="fontstyle0">The objective of this study was to compare the effect of DL-methionine (DLM) and DL-methionine hydroxy<br>analogue (DL-MHA) supplementation on the growth performance, carcass quality, fat accumulation and lipid profile<br>in blood of meat-type duck. Three hundred male Cherry Valley ducks were divided into 3 groups with 4 replications<br>of 25 ducklings each. Each group was given a diet as follows: 1) basal diet, 2) basal diet + DLM, and 3) basal diet + DLMHA. The results show that dietary supplementation with DLM and DL-MHA increased body weight (P&lt;0.01), feed<br>intake (P&lt;0.01) and pectoralis major (P&lt;0.05), but decreased abdominal fat (P&lt;0.01) when compared to the basal diet.<br>Supplementation with DL-MHA also resulted in greater levels of triglycerides (P&lt;0.05), low-density lipoprotein<br>(P&lt;0.05) and cholesterol (P&lt;0.05) in the blood compared to the DLM group, in addition to greater levels of triglycerides<br>(P&lt;0.05) and high-density lipoprotein (P&lt;0.05) compared to the basal diet. Furthermore, supplementation with DLM<br>was shown to lower the level of plasma uric acid (P&lt;0.05) compared to the basal diet. It is concluded that DL-MHA can<br>promote the same productive performance in meat-type ducks as DLM, but the fat accumulation and lipid profile in<br>blood was greater with the DL-MHA supplementation than with DLM. Furthermore, the underlying mechanism of<br>different effects between DL-MHA and DLM on the lipid metabolism in ducks should be further investigated.</span> </p> ER -