Gustavo Pourraid

This is a very interesting issue, we had some different ways to measuring the feed efficiency. Where we involved the following: PenBox TMR valuation, manure evaluator, rumination valuation, rejection valuation and finally DM consuption, and relate to productivity. Your explanation is very short then I will appreciate a writing presentation and some scientific support. Thank you and regards Gu ...

This is an interesting issue where for the feeding methodology of the TMR, some of the behavior of the cows in the feeding process came relegate or forgotten. In the intensive grazing system the; smell and selective process, as well the palatability and the speeding in harvest of the forage are factors which are complete linked. To all these need to be add the factor of the competence in between ...

Dear Ulrika, Feeding Starch is required in formulation but will depend on the conditions or environment as well type of cattle. According to my experience is not the same fattening bulls starch requirements than milking cows with 30-40Lt, as well if in is hot environments where I will arrive at list minimum 22 to 30%as maximum. In a temperate condition where you are using grazing system for fatten ...

Maybe is interesting to add to this topic the importance of the selection the good quality and the appropriate DDGS into the formulations of the dairy cows in hot environment. An consider to use the DDGS from yellow corn which is the best in the research, and in the practice, as well when arrive at 10% of Fat in the DDGS and take into consideration when make the formula included about 55% of forag ...

Dear Dr. Alvaro Garcia, Thank you for your very good work and technical description. The problem is that this approach, specifically from USA where the harvesting system and storage of the grains is done with a high technology, and where the Aflatoxin can be relatively well controlled with a good management and environment. This situation does not fit very well for our working conditions. As I am ...

Dear Mr. Branco Stuburi, sorry you request the valuable opinion to Dr. Claudia Parys, but for me all which is relate to cows physiology is my passion and of course specifically amino acid which is one of the most important fields, where the science do not advance to much yet. So please allow me to provide some personal opinion to your question about combination of RP Methionine and RP Lysine. The ...

The addition of Amino acid to the dairy cows in the formulations came more attention from a few years ago; today most of the farmers are interested in this technology. The research start up long time ago, as an example when start to study the free methionine and lysine had a relatively high rumen degradation escape values when they were fed to high producing dairy cows (Velle et al., 1997, 1998; ...

The addition of Amino acid to the dairy cows in the formulations came more attention from a few years ago; today most of the farmers are interested in this technology. The research start up long time ago, as an example when start to study the free methionine and lysine had a relatively high rumen degradation escape values when they were fed to high producing dairy cows (Velle et al., 1997, 1998; ...

Dr. Flamenbaum, I consider a very good technical article with excellent data support, specifically in the economic negative effect of the milk production in hot conditions. But if you allow me, I want to add some personal experiences, as I am dairy specialist working in dairy production in hot environments since 1976. And according my criteria, I consider three types of hot conditions which are in ...

Closer to three years I am working with the supplementation of Aminoacids (Lys\Met) in hot environments conditions (high THI). I learn that work with these Aminoacids in temperate conditions and in grazing systems in these places have better results because the temperature helps in good quality of grains and forages, have better quality that helps to improve the digestibility and the results.Oppos ...