Torta de licuri (Syagrus coronata) na alimentação de caprinos

Abstract

The objective of this study weres to determine the best inclusion level of licuri cake in the diet of goats based on intake and digestibility and to determine its on ingestive behavior and physiological respponses, microbial synthesis estimated by purine derivatives in the total collection of urine and blood parameters ( urea and glucose). Twenty entire, one year old ⅓ Boer goats, 18.1 kg (DS=2.2) average body weight (BW), were allocated to dietary treatments in a completely randomized desing. Each animal was confined in a a 1.0, m² pen wiyh a suspended floor and given ad libitum Access to clean, fresh water. Diets were formulated to meet NRC (2007) requerements and the ingredients were: 50% of Tifton-85 (Cynodon sp) hay, corn meal, soybean meal, mineral and vitamin premix, and licury cake. The treatments were: i) no addition of licuri cake to the diet, ii) 15% (DM basis) addition of licury cake,iii) 30% licury cake and. Iv) 45% licury cake. The experiment lasted for 17 days; the first 10 days were used to adapt the animals to the diets and facilities. The inclusion of licury cake increased the fiber concentration of the diets; however, there was no effect on either dry matter (DM) or organic matter (OM) INTAKE. There was a linear increase (p< 0.05) in the EE content of the diet as the addition of cake increased; however, EE intake did not differ (p< 0.05) between treatments. The digestibility of non-fibrous carbohydrates (NFC) decreased with increasing inclusion of licury cake, as did NFC intake. The efficiency of ingestion of DM and NDF presented a negative quadratic effect with the inclusion of licury cake. The inclusion of licury cake in the diet of goats caused a reduction (p < 0.05) levels of sanguine nitrogen and glucose in goats. Urinary excretion of goats decreased linearly with the inclusion of licuri cake diet (p<0,05). The inclusion of licuri cake goat diets caused a linear reduction (p<0,05) in the excretion of allantoin, xanthine and hypoxanthine total purine deivative (PD) in samples of total collections urine in response to inclusion of licuri cake in the diet. Results from this study indicate that licury cake can be fed to goats at up to 455 of the diet without adverse effects on either intake or digestibility. And based on microbial protein production and blood parameters of goats fed licuri pie, you can use up to 15% inclusion in the diet.