Nutrition And The Environment

Nutrient management is an issue in many parts of the world. In the United States, nitrogen (N) and phosphorus (P) are the nutrients currently regulated. A full lactation study was done, examining different protein feeding strategies for dairy cows.[6] Milk production was similar among three treatments, even though total N intake was 25 kg less and manure N excretion decreased 21 kg on one of the treatments. A 3-lactation study found that decreasing P from 0.47% to 0.39% of the total diet did not affect milk production.1-7-1 A 5-year field study in a commercial dairy herd reported a 17% decrease in manure N excretion even though animal numbers increased by 33%.[8] P excretion decreased by 28% during this same period. Milk production per cow increased by about 9% during this same time. These results indicate that there are opportunities to reduce nutrient excretion to the environment in dairy herds without decreasing milk production.

Weight Loss All Star

Weight Loss All Star

Are you looking to lose weight or even just tone up? What is stopping you from having the body you want and help you feel great at the same time? I created Weight Loss All-Star for all those wanting to lose weight, and keep the weight off. I know how hard it is to do diets and stick with them, and get the motivation to get up and exercise.

Get My Free Ebook


Post a comment