Effect of glycerin on digestibility of diets for pigs determined with different methodologies

Semina: Ciências Agrárias

Charles Kiefer¹  Guiomar Helena Verussa²  Anderson Corassa²  Cláudia Marie Komiyama²  Douglas dos Santos Pina²  Ana Paula Silva Ton²  Leonardo Marmo Moreira³  Alexandre de Oliveira Teixeira³ 

[1] Universidade Federal de Mato Grosso do Sul;Universidade Federal de Mato Grosso;Universidade Federal de São João Del Rei;

关键词: Biodiesel;    Digestibility;    Glycerol;    Marker;    Metabolizability;    Total feces collection.;   

DOI  :  10.5433/1679-0359.2017v38n4Supl1p2803

来源: DOAJ

【 摘 要 】

Glycerin is a by-product from the biodiesel chain whose energy value can be beneficial to pig diets. In this study, eight barrows were distributed individually into metabolic cages in a completely randomized block design. The animals were fed diets containing 0, 5, 10 and 15% glycerin from soybean oil and subjected to the methods of total feces and urine collection and chromic oxide marker. We determined the digestibility coefficients (DC); the dietary levels of digestible dry matter (DM), organic matter (OM), crude protein (CP), mineral matter (MM), ether extract (EE), an neutral detergent fiber (NDF); digestible energy (DE); metabolizable energy (ME); and these last two variables corrected for the nitrogen content (DEn and MEn). Digestible OM values increased linearly with glycerin inclusion in the diets. The digestible CP of the diets showed an inversely proportional relationship with glycerin inclusion levels. Digestible MM decreased linearly when determined by the total collection method and quadratically when determined by the marker method. There was a linear increase in the digestible and metabolizable coefficients of energy, DE, DEn, ME and MEn of the diets as the glycerin inclusion level was increased. Inclusion of up to 15% glycerin obtained from soybean oil production increased the digestible fractions of organic matter and energy of the diets.

【 授权许可】

Unknown