Participation in Forum on May 5, 2025
Thanks Dr. Penz, For the non-nutritionists who wish to know more about what data is needed in order to have a new factor (or non-nutritive) element calculated or evaluated in the Least Cost Formulation, you may find what you need in a recent book published by Dr. Todd Applegate of the University of Georgia. The book is entitled Advances in Poultry Nutrition. I was pleased to contribute the chapter ...
Participation in Forum on May 4, 2025
Thanks for the detailed information regarding the many factors that humans should be concerned about in the production of animal products. Your enumeration of possible improvements in the reduction of the harmful elements is a great way to get some action. My contribution to that effort was the development of software to minimize the cost of the Feeds. The use of Linear programming in the Feed For ...
Participation in Forum on March 1, 2025
Hi Dr. Leeson, I enjoyed reading your detailed post about feed intake, bird growth and all of the other great information you provided. As i was reading your article, i was reminded of the many lectures that you and Dr. Somers gave a few years back. Thanks for my updated course on Why Chickens Eat.
Bob J. Brill likes the comment:
Luis Fernando you are right. I am always against using enzymes on top; it is not only Waste of money but additionaly destroy the mineral balance as Phytase does. It costs extra. As the best case enzymes on top do not work and money to buy them are just lost
Bob J. Brill likes the comment:
Very good points were raised in this discussion and we see that different approaches are possible. Congrats to all of you. I also would like to add some points that I think we need to take into consideration to better use enzymes: 1-we need to know the amount of antinutritional factors and how they affect each specific feed, for example, soluble Arabinoxylans from one raw material can affect the d ...
Bob J. Brill likes the comment:
The enzyme products that have been developed are of great value to the broiler producer. We know commercial enzyme products release nutrients from the bulk ingredients that make the ingredients more valuable. Typically, a successful product improves value well beyond its cost. And we know that enzyme products named for the same enzyme can have other beneficial enzymes from the fermentation process ...
Bob J. Brill likes the comment:
Hi Everyone. Thanks for addressing the good and the bad about formulating multiple enzymes in the same diet. As a result of the great improvements in Enzymes and other Additives, people like Dr. Frank Ivey with his Broiler Opt, and others who know how to model animals have in effect taken the problem out of the structured Linear Programs that i and others have developed over the last 40 years. And ...
Participation in Forum on January 19, 2024
Hi Everyone. Thanks for addressing the good and the bad about formulating multiple enzymes in the same diet. As a result of the great improvements in Enzymes and other Additives, people like Dr. Frank Ivey with his Broiler Opt, and others who know how to model animals have in effect taken the problem out of the structured Linear Programs that i and others have developed over the last 40 years. And ...
Bob J. Brill likes the comment:
The prices are a moving target. But yes that paper is AUD not Euros. We can say that as time goes by, the purified AA sources will likely get cheaper as demand picks up and economy of scale is realised. The next thing to be considered will be sustainability. On first thought, most will think purified sources will be more sustainable than SBM. However one needs to consider the input materials to pr ...
Bob J. Brill likes the comment:
We often forget (or forget to teach) that the mathematical program known as linear programming, often known as "least cost", when in actuality it can be used to determine either least cost or maximum profit. One of the problems that the author I think overlooks is that for many nutrients feeding less than a requirement can lead to disastrous results, especially when it deals with trace mineral, vi ...