Reference
Look it up, free
93 reference pages for New Zealand livestock farming — what is in each feed, what each class of stock needs, where the mineral bands sit, and how much methane the animal produces. No sign-up, no paywall.
Every figure on these pages is computed by the same engine that runs our calculators, from published sources we name. Nothing is transcribed from a factsheet, so when a coefficient is recalibrated the tables move with it — and you can see every number and its source.
93 pages — a feed, a stock class, a mineral. Try “maize”, “copper” or “ewes”.
Feed values
What is actually in this feed?
Energy, protein, fibre, starch and minerals for the feeds used on New Zealand farms — pasture, silages, grains, by-products and the mineral products.
45 feeds
Feed requirements
How much does it need to eat?
Daily energy and dry matter for every class of stock, at maintenance, growing or milking, and through late pregnancy. Requirements, not allowances.
A 500 kg dairy cow holds weight on 61.3 MJ ME a day
11 stock classes
Minerals
Is this level a problem?
Cited target bands for the macro minerals and trace elements that actually cause trouble here, with what deficiency and excess look like.
12 minerals
Methane
How much methane does it produce?
Enteric methane per head per day and per kilogram of product, from what the animal eats — plus the two things that actually change it.
That same cow, milking, belches about 406 g of methane a day
11 stock classes
Pasture growth
How is the season going?
What pasture grew this month against the 30-year normal, by region and farm system. Rebuilt every night from the ERA5-Land weather record.
Right now the 12 monitoring sites are running 2% to 10% above their 30-year normal.
6 regions, updated nightly
And a few one-pagers
Stocking rates
What New Zealand farms actually carry, by region and farm class, from the B+LNZ and DairyNZ surveys.
Stock units
What a stock unit is, and what each class of animal counts as — computed from the same energy requirements.
Calculators
One-question tools: dry matter to as-fed, how long a stack of silage lasts, what a feed costs per megajoule.
A table can only take you so far
Every page here has to pick a liveweight, a production level and a diet quality. Your stock don't. The free calculator takes your own figures and the feeds you actually have, and tells you whether the diet gets there — and which of energy, protein or gut fill runs out first.