Details

Autor(en) / Beteiligte

• de Abreu, Rodrigo Caetano
• Kiefer, Charles
• de Souza Nascimento, Karina Márcia Ribeiro
• Corassa, Anderson
• Marçal, Danilo Alves
• da Silva Alencar, Stephan Alexander
• Rodrigues, Gabriela Puhl
• Farias, Taynah Vieira Aguiar
• dos Santos, Tânia Mara Baptista

Titel

Chromium and feed restriction as alternative strategies to ractopamine in finishing pigs /Cromo e restrições alimentares como estratégias alternativas a ractopamina para suínos em terminação

Ist Teil von

• Ciência rural, 2024-04, Vol.54 (5), p.1

Ort / Verlag

Universidade Federal de Santa Maria

Erscheinungsjahr

2024

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• This study evaluated chromium and quantitative and qualitative feed restriction as alternative nutritional strategies to ractopamine in finishing barrows. Fifty barrows, genetically similar, with an initial body weight of 99.0 [+ or -] 4.3 kg and a final body weight of 117.2 [+ or -] 5.8 kg were used. The animals were distributed in a randomized complete block design with five nutritional treatments (Control; Rac = 10ppm ractopamine; Chromium = 0,8mg chromium yeast; Quality = qualitative restriction, 7.5% less net energy in the diet; Quanti = 15% quantitative reduction in feed supply), with five replicates and two animals per replicate. Chromium supplementation and quantitative feed restriction reduced feed, lysine, net energy, and crude protein intakes (P < 0.05). Chromium, ractopamine, and quantitative restriction improved feed conversion (P < 0.05). Supplementation with chromium and ractopamine and feed restriction did not influence the carcass characteristics of the pigs (P < 0.05). Quantitative feed restriction and supplementation of 0.8mg of chromium yeast are presented as potential alternatives to ractopamine in the diet of finishing pigs.