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Ruminants Nutrition and Feeding

Biodegraded hay with graded addition of Pleurotus ostreatus improves dry matter disappearance and reduces methane production of diets incubated in vitro

ORCID Icon, ORCID Icon, ORCID Icon, ORCID Icon & ORCID Icon
Pages 347-358 | Received 25 Oct 2022, Accepted 16 Mar 2023, Published online: 31 Mar 2023

Figures & data

Figure 1. Experimental Procedure Flowchart.

Figure 1. Experimental Procedure Flowchart.

Table 1. Ingredients and chemical composition of experimental diets, and biodegraded hay used for in vitro incubations.

Figure 2. Interaction of acid detergent fibre (aADFom) in the diet × H-PO (P. ostreatus biodegraded hay) concentration sliced by high aADFom and low aADFom diets for (A) methane (CH4) production (mg/g DMi) and (B) CH4 yield (mg/g DMd) at 24 h. Different letters between bars, for CH4 production and CH4 yield indicate significant differences (p < 0.05), for the inclusion of biodegraded hay.

Figure 2. Interaction of acid detergent fibre (aADFom) in the diet × H-PO (P. ostreatus biodegraded hay) concentration sliced by high aADFom and low aADFom diets for (A) methane (CH4) production (mg/g DMi) and (B) CH4 yield (mg/g DMd) at 24 h. Different letters between bars, for CH4 production and CH4 yield indicate significant differences (p < 0.05), for the inclusion of biodegraded hay.

Table 2. Effects of P. ostreatus biodegraded hay and acid detergent fibre in the diet on in vitro dry matter disappearance, gas production, partition factor, and methane (CH4) output production and yield, at 24 h of incubation.

Table 3. Total short-chain fatty acids (tSCFA), and percentage of the main tSCFA according to the concentration of P. ostreatus biodegraded hay and acid detergent fibre, at 24 h of incubation.

Figure 3. Diagram of carbohydrate ruminal fermentation, indicating end products (tSCFA) and methane (CH4). Some of the potential targets for decreasing CH4 emissions from ruminants are indicated in italics. Source: Adapted from Patra (Citation2012), Ramírez et al. (Citation2015) and Arias-Islas et al. (Citation2020).

Figure 3. Diagram of carbohydrate ruminal fermentation, indicating end products (tSCFA) and methane (CH4). Some of the potential targets for decreasing CH4 emissions from ruminants are indicated in italics. Source: Adapted from Patra (Citation2012), Ramírez et al. (Citation2015) and Arias-Islas et al. (Citation2020).

Data availability statement

The data that support the findings of this study are available from the corresponding author, J.A.S., upon reasonable request.