Evaluation of extruded roughage with different additives in sheep diet

Tamires Soares De Assis,Erica Beatriz Schultz,Karla Alves Oliveira,Gilberto De Lima Macedo Junior,Luciano Fernandes Sousa,Marco Túlio Santos Siqueira

doi:10.4025/actascianimsci.v44i1.53447

Abstract

The purpose was to evaluate the effect of extruded roughage Foragge® with different additives on intake, digestibility nutrients and nitrogen balance of sheep. Twenty adults, non-pregnant ewes with average weight 68 kg were used. The treatments were extruded roughage with additives (essential oil, virginiamycin, unpurified inactive yeast, tannin and purified inactive yeast). The design was in randomized blocks. The means were contrasted by SNK test, and the fecal score was tested by the Kruskal Wallis test (1952), at 5% significance. There was no difference in the intake of dry matter, crude protein, nitrogen, water, water in relation to dry matter, neutral detergent fiber (NDF), and acid detergent fiber (p > 0.05). As well as the digestibility of dry matter, crude protein and neutral detergent fiber, the fecal weight, fecal nitrogen, retained nitrogen and nitrogen retained in relation to nitrogen ingested (p > 0.05). However, dry matter intake as a function of body weight and metabolic weight, urinary nitrogen, hemicellulose intake, and hemicellulose as a function of NDF, were higher in the Foragge Factor® treatment (p < 0.05). The inclusion of different additives in the extruded roughage improved nutritional parameters, without causing disturbances.

Highlights

In an attempt to improve animal performance, farmers are increasingly applying technologies in animal breeding and feeding
Foragge® feed was produced with the purpose of partially or totally replacing corn silage, a fact proven by chemical values close to those found in the Foragge® product in question (Table 1)
According to Valadares Filho (2006), the average chemical composition of corn silage produced in Brazil has 71.8 crude protein (CP), 27.9 EE, 539.8 neutral detergent fiber (NDF), and 294.9 acid detergent fiber (ADF) g kg-1 and dry matter digestibility of 595.8 g kg-1

Summary

Introduction

In an attempt to improve animal performance, farmers are increasingly applying technologies in animal breeding and feeding. It is expected that the use of additives in the extruded feed for ruminants has better use of energy consumed due to increasing the fermentation; improving feed conversion; increasing daily weight gain; and, in some cases, avoid the occurrence of metabolic disorders, such as acidosis and others. This because, according to Souza et al (2016), additives act by controlling ruminal populations involved in fermentation. The goal was to evaluate the effect of extruded roughage Foragge® with different additives on intake and digestibility nutrients, and nitrogen balance of sheep

Material and methods

Results and discussion

Conclusion