Farm dairy effluent


There are approximately 950 dairy farms operating in Northland, with a total of 329,414 dairy cows and an average herd size of 300.[1]  The average milk solids produced per cow in the 2013/14 season was 313 kilograms.[2]

Importance to the Northland economy (2014/15 statistics)

Milk solids production:          90.3 million kilograms

Value of milk production:      $420 million

Number employed directly/indirectly:    Approximately 3000 (including both on-farm and processing/wholesaling).


[1] New Zealand Institute of Economic Research (2014).  QuickStats about Dairying – Northland Region, New Zealand Dairy Statistics, Statistics New Zealand.  http://www.dairyatwork.co.nz/media/16634/QuickStats-about-dairying-Northland.pdf

[2] Livestock Improvement Corporation Limited and Dairy NZ Limited (2014).  New Zealand Dairy Statistics 2013-14.

Find out what these common terms mean as defined in the Regional Water & Soil Plan.
Information about different effluent management systems.
Reports on farm trials to reduce effluent volumes.
Different methods for storage and disposal of animal effluent and wastewater.
Find out about the rules that apply to the discharge and management of animal effluent.
Maintaining and enhancing water quality in our rivers and coastal waters.
Information on managing stormwater to reduce effluent volumes.
How sludge beds and weeping walls work, and what the benefits are.
Information about constructing or modifying a feed or stand-off pad.
How to select and design the right system to achieve effective land application.
Compliance statistics from the 2004/05 to 2015/16 dairy seasons.