The influence of replacing slow with rapid starch in growing rams' diets on the level of rumen microbial proteosynthesis
2010
Vasilachi, A., National Research and Development Institute for Animal Biology and Nutrition, Balotesti, Ilfov (Romania) | Pop, S., National Research and Development Institute for Animal Biology and Nutrition, Balotesti, Ilfov (Romania) | Dragomir, C., National Research and Development Institute for Animal Biology and Nutrition, Balotesti, Ilfov (Romania) | Vlassa, M., Babes-Bolyai University, Cluj-Napoka (Romania). Raluca Ripan Institute for Research in Chemistry | Filip, M., Babes-Bolyai University, Cluj-Napoka (Romania). Raluca Ripan Institute for Research in Chemistry
The objective of the study was to estimate the level of microbial proteosynthesis in sheep, following the replacement of a classical ingredient (corn) with a rapidly fermentable energy source (barley), when protein ingredient of the compound feed is highly degradable (rapeseed meal). The diets were tested on two groups of four Merinos rams each, weighing 50-55 kilos. It is concluded that the effect of synchronizing the energy and protein dynamics in barley group was counteracted by the fact that energy and protein availability were limited to the first hours after administration of compound feed, when the capacity of the ruminal microorganisms to grow was probably exceeded. In order to maximize their growth potential, it is necessary to extend the period of synchronized ruminal availability of energy and protein.
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