OK this is slightly off beam, but a lot of people are very keen of feeding distillers grains to cattle. For some ethanol plants it is the most profitable part of the business.
Animal husbandry is not an area that I know much, if anything about. At home we struggle to keep goldfish alive above three months. (Each one a tragedy.)
But I came across a good, if long piece of writing to the next Farmer In Chief
in the New York Times Magazine the other day. I've been wondering what to do with it, and I guess it was Ensus'
new website that prompted me to look at the effects of feeding protein and phosphorus-rich food to heifers. I am not trying to take a pop at Ensus, they're just the most recent example of this thinking that I've come across.
It turns out that there is no advantage or disadvantage to feeding distillers grains to dairy heifers. According this on eXtension
The primary advantage in feeding distillers grains to dairy heifers is
cost. There are no known biological or nutritional advantages or
with feeding distillers grains to dairy heifers. Research trials in
which distillers grains were fed to heifers observed normal growth
rates, normal reproduction, and normal subsequent milk production.
For me one of there is a lot of resonance in Michael Pollan's article
, especially the part about flying over a brown land, which much of the US is for much of the time (based on series of flights at different seasons to random times across the US in the past 10 years). I am also impressed with his quote:
As Wendell Berry has tartly observed, to take animals off farms and put
them on feedlots is to take an elegant solution -- animals replenishing
the fertility that crops deplete -- and neatly divide it into two
problems: a fertility problem on the farm and a pollution problem on
the feedlot. The former problem is remedied with fossil-fuel
fertilizer; the latter is remedied not at all.
I don't think of my self as particularly a champion of the organic food movement. Cheap food has enabled many in the west to avoid malnutrition, partly through fertiliser use. Organic food is often the preserve of the wealthy, beacuse it has not been possible to produce it on the scale of industrial food.
Maybe we need a middle way between these extremes with smaller farms closer to centres of population and inorganic fertiliser application used to supplement rather than replace fertilisation using animal waste. At least part of this Pollan recommends.
Would benefit farmers to grow a range of crops across their farms rather than being reliant on monocultures of individual crops, if only to spread the risk.
Enough of this, I'm heading right back onto the beam.