Abstract
Considering the huge quantities of crops by-products and pruning waste such as rice straw and citrus leaves produced annually worldwide, and their potential pollution capacity, recycling as feed for livestock is an alternative. The objective was to study these by-products effect on energy balance and methane emissions in 10 Murciano-Granadina goats at maintenance. The control diet (CTR) included barley straw and beet pulp while the experimental diet (ORG) consisted of rice straw and orange leaves. Differences were found for energy intake (248 kJ/kg of BW0.75 greater for CTR than ORG). The intake of metabolizable energy was 199 kJ/kg of BW0.75 lower in ORG than CTR, and the energy efficiency was higher with CTR (0.61) than ORG (0.48). Protein retained in the body was 9 g/goat greater with CTR than ORG, and fat retention in the body was approximately 108 g/goat greater with CTR than ORG. Despite more unfavorable energy balance in response to feeding ORG than CTR, the retention of body energy was always positive. Reductions in CH4 emissions were detected when goats were fed ORG diet (from 22.3 to 20.0 g/d). Overall results suggested that feeding orange leaves and rice straw was effective in reducing CH4 emissions without adversely affecting energy balance.
Original language | English (US) |
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Article number | 38 |
Pages (from-to) | 1-14 |
Number of pages | 14 |
Journal | Animals |
Volume | 11 |
Issue number | 1 |
Early online date | Dec 27 2020 |
DOIs | |
State | Published - Jan 2021 |
Keywords
- orange leaves
- maintenance
- goats
- methane emissions
- rice straw
- Goats
- Methane emissions
- Rice straw
- Maintenance
- Orange leaves
ASJC Scopus subject areas
- General Veterinary
- Animal Science and Zoology