In vitro gas production and fatty acids biohydrogenation of diets containing different unsaturated fatty acids sources plus crude glycerin

Autor(es)

Gomez-Insuasti, Arturo Samuel ^{[1, 2]} ; Granja-Salcedo, Yury Tatiana ^{[1, 3]} ; Castillo Vargas, Julian Andres ^{[1, 4]} ; Messana, Juliana Duarte ^[1] ; de Oliveira Sader, Ana Paula ^[1] ; Berchielli, Telma Teresinha ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, Sch Agr & Vet Sci FCAV, Dept Anim Sci, UNESP, Jaboticabal, SP - Brazil

^[2] Univ Nacl Colombia, Dept Anim Sci, Leticia, Amazonas - Colombia

^[3] Colombian Corp Agr Res AGROSAVIA, Microbiol & Anim Nutr Trop Res Grp, Res Ctr Nus, San Roque, Antioquia - Colombia

^[4] Fed Rural Univ Amazon, Dept Anim Sci, Parauapebas, Para - Brazil

• Tipo de documento: Artigo Científico
• Fonte: TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES; v. 45, n. 5, p. 944-954, 2021.
• Citações Web of Science: 0

Resumo

An in vitro trial was conducted to evaluate the effects of different unsaturated fatty acids (UFA) sources plus crude glycerin (CGL) on gas production and rumen biohydrogenation (RBH). Incubated diet corresponded to diets containing corn silage (30%) and concentrate (70%) composed of corn, urea, mineral salts, CGL, and different UFA sources as follows: no additional fat (NAF), rumen protected fat (RPF), soybean oil, linoleic acid (LA) or alpha-linolenic acid (LN). Methane concentrations in LA and LN were lower compared to NAF (p < 0.001), but when CH4 was expressed as a proportion of total gas, NAF and RPF showed the greatest values among evaluated UFA sources (p = 0.001). 18:1 t11 concentration showed a faster increase from 0 to 1 h and a slower decrease from 1 to 36 h of incubation, irrespective of UFA source. A higher C18:1 t11 production rate was observed from 1 h to 5 h of incubation, where LA and LN have higher values compared to NAF and RPF diets (p < 0.001). Diets with a high content of LA may be efficient as a nutritional approach to reduce methane production and RBH, resulting in positive effects on vaccenic acid concentrations. (AU)

• Processo FAPESP: 17/02034-0 - Degradação e dinâmica microbiana ruminal in situ de diferentes fontes de proteína para bovinos de corte
• Beneficiário: Yury Tatiana Granja Salcedo
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 12/23949-3 - Biohidrogenação microbiana e o fluxo duodenal de ácidos graxos do rúmen em novilhos de corte suplementados com fontes lipídicas em dietas contendo glicerina
• Beneficiário: Arturo Samuel Gómez Insuasti
• Modalidade de apoio: Bolsas no Brasil - Doutorado