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Effect of forage type and enzyme feed additive on performance of Iranian Holstein cows
Published online by Cambridge University Press: 23 November 2017
Extract
Enzymes are used to improve the nutritive value of feeds for nonruminants. Many experiments showed that enzymes substantially improved feed digestibility and animal performance in sheep and cattle, but results were often inconsistent (yang et al, 1999). Various results from recent studies can be contributed to a number of factors including diet composition, type of enzyme preparation, complement of enzyme activities, amount o enzyme provided, enzyme stability, and method of application (Schingoethe et al, 1999). Some experiments showed that type of forage and grains in rations can be as an important factor for effecting enzyme in diets (Beauchemin et al, 1999). The objectives of this experiment were to determine the effects of type of forage (Corn silage vs. barley silage) in diets with and without mixture enzyme in the diets of dairy cows on food intake, milk production, and milk production.
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- Copyright © The British Society of Animal Science 2008