caa a22 4500 463209079 CHVBK 20180405153134.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10705-006-9083-1 doi (NATIONALLICENCE)springer-10.1007/s10705-006-9083-1 Greenhouse gas emissions during co-composting of cattle mortalities with manure [Elektronische Daten] [Shanwei Xu, Xiying Hao, Kim Stanford, Tim McAllister, Francis Larney, Jingguo Wang] Following outbreaks of bovine spongiform encephalopathy (BSE), fewer cattle mortalities are being rendered. Composting may be a viable on-farm alternative for disposal of cattle carcasses. A study was conducted to assess feasibility and greenhouse gas (GHG) emissions during co-composting of cattle mortalities and manure. Using a tractor-mounted front-end loader, windrows were constructed containing manure+straw (control; CK) or manure+straw+cattle mortalities (cattle mortality; CM). The composting process lasted 310d. The windrows were turned twice, at days 93 and 211, using either a tractor-mounted front-end loader or a specialized shredder bucket. Maximum windrow temperatures were >50°C for 36 out of 92d (before first turning) and 142 out of 208d (after first turning) for the CM treatment and cattle mortalities were completely decomposed except for a few large bones. The cumulative CO2 and CH4 emissions were significantly affected by the mortality treatment, but not by the turning technology or their interactions. Significantly higher CO2 (53.6g d−1 m−2) and CH4 (2.204g d−1m−2) emissions were observed during the co-composting of cattle mortalities than manure composted with straw (23.0 and 0.742g d−1m−2 for CO2 and CH4, respectively). Similarly, N2O emissions were higher with mortalities than without and, for the CM treatment only, higher with shredder bucket than front-end loader turning. In the final compost, CM had higher TN and NH 4 + -N contents than CK while TC and the C/N ratio were higher with compost turned with the front-end loader than with the shredder bucket. In conclusion, composting was an effective means of disposing of cattle mortalities, but did increase GHG emissions and the N content in the final compost. It is not known if GHG emissions are different than those that would be released from natural decomposition of carcasses. The higher N content in compost containing mortalities would increase its agronomic value. Springer Science+Business Media B.V., 2007 Greenhouse gas emissions nationallicence Cattle mortality nationallicence Compost windrow technology nationallicence Beef feedlot manure nationallicence Compost quality nationallicence Xu Shanwei Agriculture and Agri-Food Canada Lethbridge Research Centre, 5403 1st Ave S., T1J 4B1, Lethbridge, AB, Canada aut Hao Xiying Agriculture and Agri-Food Canada Lethbridge Research Centre, 5403 1st Ave S., T1J 4B1, Lethbridge, AB, Canada aut Stanford Kim Alberta Agriculture, Food and Rural Development, 5401 1st Ave S., T1J 4C7, Lethbridge, AB, Canada aut McAllister Tim Agriculture and Agri-Food Canada Lethbridge Research Centre, 5403 1st Ave S., T1J 4B1, Lethbridge, AB, Canada aut Larney Francis Agriculture and Agri-Food Canada Lethbridge Research Centre, 5403 1st Ave S., T1J 4B1, Lethbridge, AB, Canada aut Wang Jingguo College of Resource and Environment, China Agricultural University, 100094, Beijing, People's Republic of China aut Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 78/2(2007-06-01), 177-187 1385-1314 78:2<177 2007 78 10705 https://doi.org/10.1007/s10705-006-9083-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10705-006-9083-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xu Shanwei Agriculture and Agri-Food Canada Lethbridge Research Centre, 5403 1st Ave S., T1J 4B1, Lethbridge, AB, Canada aut NATIONALLICENCE 700 1- Hao Xiying Agriculture and Agri-Food Canada Lethbridge Research Centre, 5403 1st Ave S., T1J 4B1, Lethbridge, AB, Canada aut NATIONALLICENCE 700 1- Stanford Kim Alberta Agriculture, Food and Rural Development, 5401 1st Ave S., T1J 4C7, Lethbridge, AB, Canada aut NATIONALLICENCE 700 1- McAllister Tim Agriculture and Agri-Food Canada Lethbridge Research Centre, 5403 1st Ave S., T1J 4B1, Lethbridge, AB, Canada aut NATIONALLICENCE 700 1- Larney Francis Agriculture and Agri-Food Canada Lethbridge Research Centre, 5403 1st Ave S., T1J 4B1, Lethbridge, AB, Canada aut NATIONALLICENCE 700 1- Wang Jingguo College of Resource and Environment, China Agricultural University, 100094, Beijing, People's Republic of China aut NATIONALLICENCE 773 0- Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 78/2(2007-06-01), 177-187 1385-1314 78:2<177 2007 78 10705 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer