Abstract
Ahead of Print article withdrawn by publisher.
Highlights
Rearing sheep in feedlots has aroused interest in intensifying the production system, as it reduces the loss of young animals due to nutritional deficiencies and parasitic infections, maintains the regularity of supply of meat and hides throughout the year, and provides a faster return of the invested capital by reducing the age at slaughter [1]
All animal management and experimental procedures for this study were approved by the Animal Ethics Committee of Federal University of Viçosa and conducted under the rules and regulations of experimental field management protocols in accordance with the Law No 11,794, of October 2008, establishes procedures for the scientific use of animals in Brazil
Before the start of the experiment the sheep were dewormed and received supplementation with injectable vitamins A, D and E subcutaneously, and kept in individual stalls provided with feed and water troughs measuring 1.5 m2 in an open area
Summary
Rearing sheep in feedlots has aroused interest in intensifying the production system, as it reduces the loss of young animals due to nutritional deficiencies and parasitic infections, maintains the regularity of supply of meat and hides throughout the year, and provides a faster return of the invested capital by reducing the age at slaughter [1]. With the increasing valuation of renewable energy sources, such as biodiesel for example, the use of agroindustrial by-products such as castor bean has generated a large production of waste in the form of meal In this regard, castor meal (CM), which contains 904 ± 21 g/kg dry matter, 357 ± 81 g/kg crude protein, 21.9 ±. Despite the potential of use of CM as a feed for animals, its use is restricted due to the presence of anti-nutritional factors: ricin, ricinine and CB-1 A allergen complex [8]
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