A survey of dairy cow wintering practices in Canterbury, New Zealand
J. P. Edwards A C , K. Mashlan B , D. E. Dalley A and J. B. Pinxterhuis AA DairyNZ, PO Box 85066, Lincoln University, Lincoln 7647, New Zealand.
B DairyNZ, Private Bag 3221, Hamilton 3240, New Zealand.
C Corresponding author. Email: Paul.Edwards@dairynz.co.nz
Animal Production Science 57(7) 1323-1329 https://doi.org/10.1071/AN16459
Submitted: 15 July 2016 Accepted: 22 September 2016 Published: 2 December 2016
Abstract
Low pasture growth rates in the South Island of New Zealand dictate the use of grazed crops and stored supplements over winter to feed dairy cows. However, grazed crops represent a significant risk for nutrient loss. Little is known about the extent of different wintering practices. The aim of the present research was to document the prevailing winter management practices in Canterbury, allowing changes in management to be tracked in the future. A telephone survey of 238 dairy farms in Canterbury (20% of the total 1208 farms) was completed in March 2016. Results indicated a heavy reliance on wintering off the milking platform (93% of the cow.weeks), mostly on support blocks managed by the dairy farmer (68%). Twenty-five per cent of the wintering occurred on a farm not owned or managed by the dairy farmer, commonly on arable farms. Kale (46%) and fodder beet (40%) were the most common winter crops fed to cows. Optimising kale and fodder beet management represents a significant opportunity to improve nutrient management and reduce nutrient loss from grazed crops.
Additional keywords: fodder beet, grazing, kale, support block, winter crop.
References
DairyNZ (2015) ‘New Zealand dairy statistics 2014–15.’ (DairyNZ: Hamilton, New Zealand) Available at http://www.dairynz.co.nz/media/3136117/new-zealand-dairy-statistics-2014-15.pdf [Verified 13 April 2016]DairyNZ (2016) ‘Key research projects.’ (DairyNZ: Hamilton, New Zealand) Available at http://www.dairynz.co.nz/about-us/research/key-projects/ [Verified 8 July 2016]
Dalley DE (2010) ‘Achieving wintering targets: critical success factors for different wintering systems in Southland and Otago.’ Proceedings of the South Island Dairy Event. Available at http://side.org.nz/wp-content/uploads/2014/05/5.3-ACHIEVING-WINTERING-TARGETS-%E2%80%93-CRITICAL.pdf [Verified 8 July 2016]
Dalley DE (2016) ‘The foibles of fodder beet and other forage crops: animal and environmental considerations for successfully feeding forage crops.’ Proceedings of the South Island Dairy Event. (Eds GR Edwards, RH Bryant) (Lincoln University: Christchurch) Available at http://side.org.nz/wp-content/uploads/2016/06/1.1-The-Foibles-of-Fodder-Beet-and-Other-Forage-Crops.pdf [Verified 8 July 2016]
De Klein CAM, Monaghan RM, Ledgard SF, Shepherd M (2010) Systems perspective on the effectiveness of measures to mitigate environmental impacts of N losses from pastoral dairy farming. In ‘Proceedings of the 4th Australasian dairy science symposium’, pp. 14–28.
Edwards GR, De Ruiter JM, Dalley DE, Pinxterhuis JB, Cameron KC, Bryant RH, Di HJ, Malcolm BJ, Chapman DF (2014) Urinary nitrogen concentration of cows grazing fodder beet, kale and kale-oat forage systems in winter. In ‘Proceedings of the 5th Australasian dairy science symposium’, (Ed. J Jacobs) pp. 144–147. (Department of Primary Industries, State Government Victoria: Melbourne)
Environment Canterbury (2015) ‘Appendix B proposed variation 1. Inclusive of recommended amendments.’ (Environment Canterbury: Christchurch, New Zealand) Available at http://ecan.govt.nz/publications/Plans/v1-report-hearing-commissioners-appendix-b.pdf [Verified 6 April 2016]
Environment Canterbury (2016a) ‘Appendix B proposed plan change 2. Inclusive of recommended Aamendments.’ (Environment Canterbury: Christchurch, New Zealand) Available at http://ecan.govt.nz/publications/general/Recommendations%20on%20Proposed%20Plan%20Change%202%20(plan%20provisions%20and%20map%20volume).pdf [Verified 6 April 2016]
Environment Canterbury (2016b) ‘Canterbury regional policy statement.’ Available at http://ecan.govt.nz/get-involved/canterburywater/about-strategy/key-documents/Pages/cwms.aspx [Verified 8 July 2016]
Landcare Research (2016) ‘NZLRI land use capability.’ Available at https://lris.scinfo.org.nz/layer/76-nzlri-land-use-capability/ [Verified 8 July 2016]
Malcolm B, Teixeira E, Johnstone P, Chakwizira E, Maley S, Dellow S (2016a) ‘Validating crop sequences for improving N use efficiency following winter grazing of forages.’Milestone no. 67668. Contract no. 32051. Job code: P/442056/07. SPTS No. 13168. (Plant & Food Research: Lincoln, New Zealand)
Malcolm BJ, Cameron KC, Edwards GR, Di HJ, de Ruiter JM, Dalley DE (2016b) Nitrate leaching losses from lysimeters simulating winter grazing of fodder beet by dairy cows. New Zealand Journal of Agricultural Research 59, 194–203.
| Nitrate leaching losses from lysimeters simulating winter grazing of fodder beet by dairy cows.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC28Xotlensrg%3D&md5=f6decd985e8f20777b5e5e024caf8a20CAS |
Ministry for the Environment (2014) ‘National policy statement for freshwater management.’ (Ministry for the Environment) Available at http://www.mfe.govt.nz/fresh-water/freshwater-management-nps [Verified 8 July 2016]
Newman M, Journeax P (2015) The economic and nutrient loss impacts of constructing and running cow housing facilities: a case study of five South Island freestall barns. In ‘Proceedings of the Australian Agricultural Resource Economics Society conference’. Available at http://purl.umn.edu/202561 [Verified 8 July 2016]
