Effect of heat and humidity on in situ rumen degradability of cottonseed
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Abstract
up to 81.00 % for DM and CP of normal and treated seed, respectively. However, the c fraction, for DM and for CP, had better performance in the normal seed, compared with the treated with heat and humidity. The dynamics of rumen degradation evidenced increasing trend, from the first to the last incubation time, with differences (P < 0.01) in the treated and non-treated seeds. The chemical composition had adequate concentrations in this feed, with values up to 23.12 and 22.94 %, for CP in non-treated and treated seed meal, respectively. It was
concluded that by humidifying the seed, there is higher availability of CP and DM for the ruminant animals. Besides, there is an efficient and easy to use alternative in animal feeding, with important contribution of bypassing proteins for the different feeding systems. Further studies on metabolism and productive indicators are recommended to support these results.
Key words: cottonseed, degradability, DM, protein.
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