Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 485975
Title Daily methane production pattern of Welsh ponies fed a roughage diet with or without a cereal mixture
Author(s) Dansen, O.; Pellikaan, W.F.; Hendriks, W.H.; Dijkstra, J.; Jacobs, M.P.T.; Everts, H.; Doorn, D.A. van
Source Journal of Animal Science 93 (2015)4. - ISSN 0021-8812 - p. 1916 - 1922.
Department(s) Animal Nutrition
Research Institute for Animal Husbandry
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) lactating dairy-cows - detergent fiber - enteric methane - horses - digestibility - cattle - performance - physiology - ruminants - nutrition
Abstract Methane production from Welsh ponies fed 2 isoenergetic diets (NE basis) at maintenance was studied in a crossover design with 4 mature geldings (230 ± 10.5 kg BW, mean ± SE). Treatments included a roughage-only (R) diet (5.1 kg DM/d) or a roughage plus cereal mix (RC) diet (2.5 kg DM hay/d plus 1.1 kg DM cereal mix/d). For both diets, the same grass hay was used (898 g DM/kg and 4.5 MJ NEm/kg DM) and a commercial cereal mix was used in the RC diet (890 g DM/kg and 9.6 MJ NEm/kg DM). Ponies were housed in pairs in climate-controlled respiration chambers. Carbon dioxide production (CO2), oxygen (O2) consumption, and CH4 production were measured over 3 consecutive days. Heat production (HP) rates were calculated from gaseous exchange. Feces were collected quantitatively to determine dietary nutrient digestibility. Dry matter intake differed between diets (P <0.0001), but NE intake was equal for both diets (22.3 ± 0.07 MJ NEm/d). Organic matter digestibility was lower (P = 0.006) for the R diet (47.2%) than the RC diet (55.6%). Methane production was higher (P = 0.014) on the R diet (29.8 L·pony–1·d–1) compared to the RC diet (23.2 L·pony–1·d–1). Methane production expressed in liters/kilogram metabolic body weight (BW0.75) per day tended (P = 0.064) to decrease with 21% for the RC group compared with the R group. Heat production, O2 consumption, and CO2 production were not affected by diet. Diurnal patterns of CH4 production and HP were similar for both diets. Methane production increased slightly (P <0.652) after feeding and was numerically lower for the RC diet for all time points throughout the day. For both diets, HP was higher after feeding than before feeding and decreased again within approximately 3 h after feeding. Isoenergetic replacement of roughage by a cereal mix reduces CH4 production in ponies. No clear diurnal pattern in CH4 emission can be discerned in ponies fed at maintenance
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