Effects of dietary brown propolis on nutrient intake and digestibility in feedlot lambs

Revista Brasileira de Zootecnia

Ítavo, Camila Celeste Brandão Ferreira³  Ítavo, Luís Carlos Vinhas¹  Silva, Jonilson Araújo da³  Heimbach, Natália da Silva³  Morais, Maria da Graça³  Franco, Gumercindo Loriano³  Zeoula, Lucia Maria² 

[1] Universidade Católica Dom Bosco, Campo Grande, Brasil;Universidade Estadual de Maringá, Maringá, Brasil;Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil

关键词: flavonoids;    monensin;    ruminants;   

DOI  :  10.1590/S1516-35982014000700006

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

The present study tested brown propolis in crude or extract form as a feed supplement for feedlot lambs to identify the type that most improves in vivo nutrient digestibility. Digestibility was assessed by both total fecal collection and internal markers and the results obtained by these techniques were compared. The completely randomized design was used to compare feed intake and nutrient digestibility of 24 male lambs aged seven months among four dietary treatments (crude brown propolis, propolis ethanol extract, monensin sodium, and control). Methods of feces collection were compared using a completely randomized split-plot design, with experimental diets corresponding to the main factor and the methods to estimate fecal production as the sub-factor. The diets had a roughage:concentrate ratio of 50:50, with Tifton-85 bermudagrass hay (Cynodon spp.) as roughage, and ground corn, soybean meal and minerals as concentrate. The lambs fed diets with crude propolis had higher feed intake than those fed diets containing monensin sodium. The different diets did not affect dry matter, organic matter, crude protein, neutral detergent fiber, or acid detergent fiber digestibility, but crude propolis supplementation provided higher ether extract digestibility than monensin sodium. Nutrient digestibility, as indicated by indigestible neutral detergent fiber, indigestible acid detergent fiber and sequentially-determined indigestible acid detergent fiber, was lower than that found with the fecal collection method. The addition of brown propolis has the same effect as monensin, but neither maximized nutrient availability in the diet of feedlot lambs at 7 months of age. Digestibility assessment using the internal markers indigestible neutral detergent fiber, indigestible acid detergent fiber and sequentially-determined indigestible acid detergent fiber is not an efficient method compared with total feces collection.

【 授权许可】

Unknown