Participation in Forum on February 12, 2024
Dear Dr. Wilkinson. Very interesting material. The variability of limestone in Australia is quite similar to what we see in Brazil, including micro-minerals like iron. One major problem I see with calcium digestibility is how, different form other nutrients, including phosphorus, digestibility is highly influenced by the amount of calcium in a complete feed, as you have mentioned. This is mostly c ...
Participation in Forum on November 8, 2023
Dear Dave Albin. I am not sure if I understood your explanation. Could you try to put it in another words? Sorry for my lack of understanding.
Participation in Forum on November 8, 2023
Dear Dr. Prasad. I got curious about the maximum energy release of 125-150 kcal/kg, whatever the combination of additives and diet composition. Where does this number comes from?
Participation in Forum on November 8, 2023
Very interesting trial. I wonder why the authors didn't analyze the data based on a factorial design with a control diet. Discussion and conclusions would be more simple and direct.
Participation in Forum on November 6, 2023
Dear Luis Fernando Luna. Thanks for the explanation and offering. My point is that there are two nutrient releases that have a direct link with performance: Energy (not really a nutrient) and amino acids. There's no way, just based on the performance change, to separate how much of the impact is coming from each one. Throwing everything in only one (f.i., energy), would generate either an over or ...
Participation in Forum on October 27, 2023
Dear Luis Fernando Luna. I became curious about your comment on defining matrices for a combination of enzymes based on growth models. Could you elaborate on that? Thank you.
Participation in Forum on October 4, 2023
Absolutely, Mike. Even more challenging is the occurrence of epigenetic impacts on the next generation. Lots to understand better in that regard.
Participation in Forum on September 21, 2023
Interesting evaluation. There is a published paper with this evaluation?
Participation in Forum on September 7, 2023
Dear Dr. Vermana. Safety margins are a common practice in animal nutrition basically as a way to ensure birds receive 100% of the time (or close to that) the nutrients they need to keep high standards of performance. In that regard, use of phytase (which itself is another source of variability) does not eliminate the use of safety margins. Our job is to try to reduce them as much as we can (precis ...
Alvaro Dubois likes the comment:
Hi, Doug, interesting findings. I have another question: Would an increase in fiber in layer and pullet diets increase the calcium and phos digestible, due to longer retention time? Any studies done on this?Thanks, Mike.