The inclusion of detoxified castor bean meal in sugarcane silage increases the carcass weight and the content of unsaturated fatty acids in lamb meat

Anim Sci J. 2022 Jan-Dec;93(1):e13749. doi: 10.1111/asj.13749.

Abstract

The aim of this study was to evaluate the performance and meat quality of lambs fed sugarcane silage containing increasing levels of detoxified castor bean meal (DCBM). Twenty-four Santa Inês male sheep were used, with initial body weight of 25.34 ± 2.57 kg, distributed in a completely randomized design with four treatments (0, 70, 140, and 210 g/kg of DCBM in the sugarcane silage). Intake and digestibility of dry matter (DM) and crude protein (CP) were positively influenced (P < 0.05) by the levels of DCBM. There was a linear increase (P < 0.05) on the intake and digestibility of neutral detergent fiber with the inclusion of DCBM. The daily and total gains showed a quadratic effect (P < 0.05) with the inclusion of DCBM, with a maximum point of 241.64 g/d and 18.12 kg at the level of 161.9 g/kg of DCBM. There was a linear increase (P < 0.01) on the hot carcass with the inclusion of DCBM. The inclusion of DCBM did not influence (P > 0.05) the levels of total lipids (2.1%) in lamb meat, but the levels of oleic acid (C18:1 n-6c) and total monounsaturated fatty acids presented a quadratic effect (P < 0.05). It is recommended to include 160 g/kg of detoxified castor bean meal in sugarcane silage.

Keywords: Ricinus communis; meat fat; oilseeds by-product; sheep performance; tropical forage.

Publication types

  • Randomized Controlled Trial, Veterinary

MeSH terms

  • Animal Feed / analysis
  • Animals
  • Diet / veterinary
  • Digestion
  • Edible Grain
  • Fatty Acids, Unsaturated
  • Male
  • Meat
  • Red Meat*
  • Ricinus communis*
  • Saccharum*
  • Sheep
  • Silage / analysis

Substances

  • Fatty Acids, Unsaturated