Australian studies revealed the absurdity of intensive free range
standards approved by politicians. It showed that free-range chickens
spend more time outside when there are fewer hens per hectare and
greater outside space available, according to research by the
University of New England and CSIRO in conjunction with the Poultry
Cooperative Research Centre.
Dr Dana Campbell from the School of Environmental
and Rural Science says greater consumer interest in animal welfare is
driving change in the laying hen industry in Australia with an
increase in free-range farms.
Six small flocks of 150 ISA brown hens were
tracked by researchers using radio-frequency identification tracking
technology that identified individual hens by their microchipped leg
bands.
Each flock had access to one of three different
outdoor stocking densities,
the first was 2000 hens per hectare, the second 10 000 hens/ha and
the third 20 000 hens/ha.
“Hens
with the lowest outdoor stocking density of 2000 hens per hectare
spent more time outdoors, while hens housed at the highest
stocking density of 20 000 hens/ha spent the least time outside,”
Dr Campbell said.
The study found that
on
average about half the hens were outside simultaneously, using all
available areas of the range.
This study was probably the first which dealt with genuine free
range poultry. Most other researchers confined their work to large
industrial-scale flocks, because big business es generally fund the research.
the most recent version of the Poultry Model Code was approved by the Primary
Industries Ministerial Council and printed in 2002, it was a
development of an earlier version. There has been no science or
research behind high density free range proposals (other than the
certainty of increased profits. No scientific review of production
processes has been undertaken to demonstrate that the standards
contained within the current voluntary Model Code are no longer
applicable to the industry. The stocking density of 1500 hens per
hectare for free range hens was developed by applying well
established principles of agronomy. The issue of the upper limit on
the long term stocking rate was debated strongly at the time,
following pressure from local Councils and the EPA about how some
farms were operating. Experience was taken into account of people
who had farmed free range layers in the 1950’s and 60's, when all
egg production was based on free range principles. Hens were often
run under citrus trees It was recognised that for an operation to be
sustainable, the stocking rate had to be low - less than 300
birds/acre (750/hectare). It was agreed that such a system should be
regarded as Free Range egg production and the hens were to have
access to the range during daylight hours. There was some dispute by
new entrants to the industry who believed that they could design
pasture rotation systems around their sheds that would allow higher
rates. So it was decided to take an empirical approach and work out
what the maximum stocking rate could be to avoid the measurable
negative impacts of nutrient run off and soil degradation and still
be theoretically possible to maintain pasture cover and avoid the
issue of dust. Some argued that as most hens were in sheds at night
and may be locked in for part of the day so that only a portion of
the hens actually entered the range area at any one time, the impact
was lessened. The dairy industry was very big at that time and local
agronomists had data on the effects of applying very high rates of
poultry manure on irrigated pasture. The agronomists studied the data
on the maximum nutrient uptake a well maintained irrigated pasture
could support and also avoid the problems of salinity build up
observed in the dairy pastures. The stocking rate was calculated and
a stocking density of up to 600 birds/acre (1500/hectare) was
regarded as the maximum possible for long term sustainability. Those
currently involved in free range egg production agree that the
fundamental elements of the Model Code, or other regulations
introduced by Governments should be: a maximum stocking density of
1500 hens per hectare; stocking density must be reduced in
conditions where pasture or other vegetative cover cannot be
maintained at the maximum stocking density.. Access
to quality feed and fresh pasture has been shown to improve nutrient
values. Our eBook on establishing a free range egg farm is available at any time. At a cost of just $245. It is a low-cost way of providing all the ideas and tools needed to establish your egg business and will help you prepare your own application to your local authority to set up a free range farm. There's no need to engage a costly consultant to write the application for you.Free range egg production is a niche market which is why genuine free range eggs are never found in supermarkets Once payment is made, the eBook will be emailed as a Portable Document File (PDF). send payment to our Bendigo Bank account. P &A Westwood BSB 633 000 Account 153356233