Does macauba cake alter nutrient digestibility and microorganism population in the rumen of sheep?

Autor: Geraseev LC; Institute of Agricultural Sciences - Federal University of Minas Gerais, Montes Claros, Minas Gerais, Brazil. lgeraseev@gmail.com., Duarte ER; Institute of Agricultural Sciences - Federal University of Minas Gerais, Montes Claros, Minas Gerais, Brazil., Vieira EA; Institute of Agricultural Sciences - Federal University of Minas Gerais, Montes Claros, Minas Gerais, Brazil., Ibarra NG; Institute of Animal Sciences - Ministry of Higher Education, San José de Las Lajas, Cuba., Chaves AS; Veterinary Department - Federal University of Juiz de Fora, Minas Gerais, Brazil., Santos SS; Institute of Agricultural Sciences - Federal University of Minas Gerais, Montes Claros, Minas Gerais, Brazil., Azevedo AM; Institute of Agricultural Sciences - Federal University of Minas Gerais, Montes Claros, Minas Gerais, Brazil., Passetti RAC; Institute of Agricultural Sciences - Federal University of Minas Gerais, Montes Claros, Minas Gerais, Brazil.
Jazyk: angličtina
Zdroj: Tropical animal health and production [Trop Anim Health Prod] 2023 Jun 09; Vol. 55 (4), pp. 234. Date of Electronic Publication: 2023 Jun 09.
DOI: 10.1007/s11250-023-03645-w
Abstrakt: Twenty Santa Inês male sheep were used in a randomized block design to evaluate the effects of different levels of macauba cake (MC) on nutrient digestibility and the population of microorganism in the rumen. The animals were divided into four groups according to MC levels (0, 10, 20, and 30% of DM) and initial body weight ranging from 32.75 to 52.17 kg. Diets were isonitrogenous and formulated to attend metabolizable energy requirements, and feed intake was regulated with 10% allowance for leftovers. Each experimental period lasted 20 days, with the final 5 days reserved for sample collection. Macauba cake inclusion did not affect the dry matter, organic matter, or crude protein intake but increased the ether extract, neutral detergent fiber, and acid detergent fiber intake, mainly because of changes in the concentrations of these components in diets with a higher level of MC. With MC inclusion, a linear decreasing effect was observed for the dry matter and organic matter digestibility, and a quadratic effect with a maximum point of 21.5% was observed for the acid detergent fiber digestibility. A relative reduction of 73% in anaerobic fungal populations was observed with the lowest level of MC inclusion, and a relative increase of 162% in methanogenic populations was observed with the highest level of MC inclusion. The increasing level of macauba cake up to 30% of the diet of lambs reduced the dry matter digestibility and reduced anaerobic fungi but increased methanogenic population.
(© 2023. The Author(s), under exclusive licence to Springer Nature B.V.)
Databáze: MEDLINE
Externí odkaz: