Resposta metabólica da associação da palma miúda (Nopalea cochenillifera) com feno de maniçoba (Manihot pseudoglaziovii) e feno de capim tifton 85 (Cynodon dactylon) na alimentação de ovinos morada nova e de caprinos Moxotó

Abstract

In order to evaluate the metabolic response of native sheep and goats fed Tifton 85 hay (Cynodon dactylon) or Maniçoba hay (Manihot pseudoglaziovii) associated with cactus pear (Nopalea cochenillifera), with a total of 32 animals (16 sheep and 16 goats Morada Nova Moxotó) in randomized block design. Blood samples were collected every two weeks, divided into four samples. Were analyzed creatinine, urea, total protein, albumin, globulin, glucose, fructosamine, AST, GGT, alkaline phosphatase, sodium, potassium and chlorine. Sheep consuming Tifton hay had a higher blood urea concentration and goats consuming maniçoba hay had higher total protein and fructosamine concentration and higher GGT activity when consumed Tifton hay. The animals of both species had increased plasma concentration glucose and serum alkaline phosphatase activity, and decreased serum sodium concentration. It was observed a positive linear effect in serum urea (P <0.0007), plasma glucose (P <0.0129), serum fructosamine (P <0.0001), serum alkaline phosphatase activity (P <0.0001) and serum sodium (P <0.0001), but with a quadratic effect on serum potassium (P <0.0012) in the sheeps. It was observed a linear effect in the activity of serum GGT (P <0.0001) and serum potassium (P <0.0272), whereas a quadratic effect was recorded for serum urea (P <0.0007) in the goats. Sheep and goats respond satisfactorily to the diets with replacement of Tifton 85 by Maniçoba hay, associated with the cactus. Greater alkaline phosphatase activity was observed in sheep and goats receiving both diets throughout time. These data serve as reference values for nutrition and metabolic profile studies of sheep and goats, particularly in relation to the values of fructosamine for goats.