Evaluación de la digestibilidad in situ e in vivo de las grasas de sobrepaso con sales de sodio, potasio y calcio

Abstract

In the sheep - goat modular and experimental station Tunshi of ESPOCH - Riobamba - Ecuador, was evaluated the degradability in situ and the digestibility in vivo of fats made from palm oil (RAPPСa, RAPPK, RAPPNa) and beef tallow (SOPCa, SOPK, SOPNa), before including in the diet of cattle. It was used a completely randomized design whit 3 replications per treatment for 3 fistulated cows (727,33 Kg average weight) for degradability in situ and 6 sheep with 21,38 Kg averege weight for didestibility in vivo. The degradability in situ of the fats showed us higher levels above 80% in 48 hours of ruminal exposure. The degradability in situ of the MS and MO that contains in the hay and evaluated under the influence of fats studied, showed us closer percentages above 85% in 96 hours of exposure with different statics for protected fats Ca(OH)2. The digestibility in vivo of the bromatological components of the forage mixture evaluated, under the influence of RAPPСa, it did not affect with level by 7%; and under of SOPCa, it did not affect until level by 5%. It is concluded that the methods of protection against ruminal degradability of fats was included in RAP and So were adequate because it did not affect the degradability of the MS; the digestibility of the MS it was not affected with 7% of RAPPCa and 5% of SPCa, that's with we recommend to study the influencyof these fats over production and bovine reproduction.