AbdelRahman Youssef, PhD

Great topic! That will be a robust energy system to chase NE for maintenance and production. So far, there's been an ongoing debate among researchers on whether the poultry industry would benefit from a NE system over the ME system due to the following challenges: 1. Inconsistent definition of NE 2. Challenges regarding measuring heat production (Sources of heat are confounded; Non-feed factors ca ...

In my viewpoint, you need to consider matrix value of Ca as well; otherwise, and as mentioned by others, Ca level in your diets incased that has adverse effect on Phytase. Below I added some considerations regarding Phytase and its matrix value. I hope this would be applicable. Factors affecting phytase activity Mineral contentAlthough doubted in some literature, high level of dietary calcium has ...

Hello from Colmenar Viejo, Spain. Enzymes need a certain level of substrate in the feed so that they work like a key-lock complex. If we take look to ruminants, these poligastric animals can digest plenty of various fibrous materials due to their capacity - due to the microflora in rumen- to produce fibrolytic enzymes. Monogastrics, on the other hand, don´t show this capacity - some fermenta ...