Effects of PROXYMet™ replacing MHA-FA in male broiler diets
This study conducted at a customer’s trial facility in Oceania showed that 1 kilogram of MHA-FA can be replaced by 650 grams of DL-methionine in male Ross 308 broilers. This has strong cost saving potential when applied in commercial production conditions.
The results of this experimental trial clearly show that 650 grams of DL-methionine achieve the same performance in male broilers as 1 kilogram of MHA‑FA . This may have significant economic impact for commercial production.
Business Director, Evonik Australia
The objective of this study was to evaluate whether 650 g of DL‑methionine supplied via PROXYMet™ could replace 1 kg of MHA‑FA in diets for all‑male broiler chickens while maintaining similar growth performance.
Location: Oceania
Project team leaders: Amy Liu, Sheila Heidi M. Ramos, Pradeep Krishnan
| Animals | 320 Ross 308 male broilers |
| Design | Completely randomized design: 2 treatments with 8 replicates per treatment, 20 birds each |
| Housing | Housing is based on a pen-trial shed |
| Diets | Corn, soybean meal and sunflower based diet, supplemented with either: 1) MHA‑FA as the methionine source; or 2) PROXYMet™: The feeding period (day 0-35) included 3 feeding phases: |
| Feeding | The alignment between measured and expected concentrations of ProxyMet™ and MHA‑FA throughout all feeding phasessubstantiates the precision and consistency of feed manufacturing in the analyzed trial diets. |
| Parameters | Average daily feed consumption, average daily gain (ADG), and feed conversion ratio (FCR) |
| Duration | 35 days |
Trial results
- The findings of this study indicate that the inclusion of 650 grams of DL‑methionine supplied through PROXYMet™ can effectively substitute for 1 kilogram of MHA‑FA in diets for all-male broiler chickens while sustaining comparable growth performance, as reflected by similar body weight (BW, Figure 1), feed consumption (Figure 2), and feed conversion ratio (FCR, Figure 3).
- 650 grams of DL-methionine supplied through PROXYMet™ is equivalent to 1,000 grams of MHA‑FA.
- Replacement of MHA-FA with PROXYMet™ resulted in a feed cost reduction of 1.42 USD/t (Table 1).
