Wednesday, 11 February 2009

Integrating livestock into nursery operations



My approach to both landscaping and propagation is heavily informed by a 20 year long engagement with the concepts and principles of Permaculture - I like the idea of multi-functional, integrated and intrinsically healthy localised ecosystems. Therefore the integration of livestock into my propagation processes was merely a matter of planning and time, not of debate.

I've finally been able to do just that. The garden - serving as home and motherstock nursery - is surrounded by a hedge of Dovyalis caffra (Kei Apple), and backed (closer to the fence) by a mixture of Acacia tortilis, A. karroo, A. robusta, A. sieberiana, a large diversity of Aloes, Scutia myrtina, Tecoma capensis and Asparagus falcatus. The purpose of this security hedge is 5-fold: specifically it must prevent local youth from raiding my large number of fruit trees (a very practical problem in South Africa's rural villages); generally it must serve the colloquially described purpose of being a 'Stop Nonsense'; it must provide wind protection as well as be a privacy screen; and finally it must create a suitable habitat for chickens, ducks and geese to scratch around underneath or have some protection from the elements. This hedge is now maturing, and serving its multiple purposes. Alongside the hedge is a path, right around the garden, which in turn is separated from the yard as a whole with a tall fence. Immediately adjacent to the fence are a large variety of indigenous trees, shrubs and ground covers - these serve as the propagation mother stock to the landscaping business.

I've introduced 2 batches of chickens. Twenty layers will mature and provide me with eggs for a minimum of 1 year; at which point a second batch will come into production, and the first batch will slowly be culled, in keeping with actual production rate. But more interesting is the introduction of broilers. Fifty broilers get introduced to one of 3 camps every 6 weeks. The camps are mulched heavily with (freely available) sawdust. At 6 weeks, 30 of the broilers are sold off at R60 each in the village where I stay (R20 below the market value). This is a return of R1,800 (for 30 chickens) against total expenditure of R1,700 (for all 50 chickens) on all food, vaccine, heating & lighting (parafine lamps for 3 weeks) and equipments (waterers and feeders), but excluding labour. Labour is a fairly incidental component in the daily routine of one of the nursery employees. The remaining 20 broilers get eaten over a six week period by all on the yard, including the propagation nursery staff. Virtually free protein, if all goes well. The food starts out as the usual broiler starter and finisher mixes, and then graduates to a hormone and medicine free mix of grains, leucaena and lucerne; so that these elements - drenched in every chicken bought in urban supermarkets and restaurants - can largely be eliminated.

But I'm yet to get to the primary reason why I grow chickens. It is to make compost. I have ample access to sawdust about 7km from site (transportation and labour being the only costs); but manure - particularly quality manure - is a major headache. The chickens solve that for me (to be supplemented in due time by rabbit, goat and other manures), and the result is that I can produce 68 cubic metre of compost a year, using both the layers and broilers.

But there are more benefits. The blood, legs, innards and bone (all cooked), form part of my cats' and dogs' diet (in 20 years of breeding and keeping Jack Russels and Golden Retrievers I am yet to have a problem from feeding chicken bones - broiler bones are too soft, and mature chickens' bones simply need to be screened: no thin, sharp bones). The feathers go into special compost mixes for special plants. The hedge gets fertilised from the natural rainfall-driven nutrient leaching process, and the garden as a whole benefits from the selective and planned release of older layers into a garden sub-divided into camps.

The whole process outlined above does have the downside of keeping me locked into a battery system of sorts - endless replacement of day-olds, endless bags of dubious feed. I'd like to move away from pre-mixed broiler feed (and largely feed my layers natural grains and greens). However, the nursery is a commercial concern with intense input needs, and a base requirement for cost efficiency. Modern broilers are large birds within 6 weeks. I'd have to switch to a combination of very hardy local birds, bred out to combinations of both larger (for meat) and smaller, more efficient lines. I'd also have to produce a very substantive part of the diet cost-efficiently on a small space, with delicate management requirements. That's my aim. For now, I've re-introduced livestock into my overall system.

In short, this is illustrative of the Permaculture approach at its best - great multiplicity of benefits, and minimisation of labour; and self-sustainability as goal and eventual reality. It takes time and effort to set-up; once done, its a pretty smooth process. Of course, it doesn't deal with the ethics and morality of a carnivorous diet. As a former fruitarian, I've long come to grips - for myself at least - that I'm part of a species of chimpanzee (the third chimpanzee, Homo sapiens) that have not quite evolved away from meat - yet.

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