| Autor: |
Sergio Segundo González Muñoz, Ignacio Arturo Domínguez Vara, José Luis Bórquez Gastelum, Juan Manuel Pinos Rodríguez, Jacinto Efrén Ramírez Bribiesca, Daniel Trujillo Gutiérrez |
| Jazyk: |
English<br />Spanish; Castilian |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Tropical and Subtropical Agroecosystems, Vol 25, Iss 3 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
1870-0462 |
| DOI: |
10.56369/tsaes.3938 |
| Popis: |
Background: The use of silages from non-conventional sources of nitrogen and soluble carbohydrates in feeding lambs is controversial in terms of nutrient supply; due to the minimum number of studies reported to date of in vitro evaluations that allow measuring its nutritional value in ruminants. Objective: To evaluate the additive effect and fermentation potential of silages plus concentrates in diets for lambs on the in vitro gas production kinetics. Methodology: Six diets (silage + concentrate) were evaluated in a factorial arrangement of 3 N sources (dried poultry litter, fresh swine manure, agricultural urea) × 2 carbohydrate sources (sugar cane molasses, bakery by-product). The diets contained: a) silage (400 g/kg DM) and b) concentrates (600 g/kg DM) based on soybean meal, ground corn, wheat bran, corn stover, fish meal, and vitamin and mineral premix. Average gas production data were analyzed with PROC MIXED and the gas production curves were fitted into the Exponential Logistic model with PROC NLMIXED. Results: The PO+MC (151.87 mL/gas MS) and CF+MC (153.12 mL/gas MS) treatments had higher average gas production during incubation. An additive effect was observed on the maximum asymptote of gas production in the CF+MC (+ 4.26%) and PO+MC (+ 3.75%) diets (P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
