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Speculative, unsourced content presented as fact. Overemphasis on natives (implicit assumption that native plants and animals are more appropriate, which is not automatically true). See talk page.
Animal husbandry is a form of agriculture in which livestock is bred and raised. The livestock is then eaten, or for example in cows and chickens, used for milk or eggs. Sometimes additional products can be attained such as leather, and the animal can also be used as a draft animal or used for transport. Although animal husbandry has several negative effects (see below), some areas naturally have (or had) open grasslands and are are not the native region of specific (plant-based) protein-foods (ie tofu, ...). Due to this, in these circumstances, growing animals may be appropriate. It however should be used only as a last resort.
In the map on the right, you can notice the appropriate locations were this can be done. The animals should be fed only with grass, the growing of other crops (ie maize, soy, grain, ...) would make the approach unappropriate and highly inefficient (these other -imported- crops would then be best eaten by the person itself). Note that one of the main reasons why the growing of animals can be appropriate in some situations at all is simply due to the presence of protein in the meat, calories can often be attained from other plants that can be grown in the region.
The other map on the right shows native animal species that (in some cases) can be used per region.
Pros of animal husbandry
- by growing wild animal species, it allows the the animals to be be released into the wild once we no longer need them (once suitable crops are found for the region), hence allowing the discarding of the use of animals. The whole setup hence allows to immediatelly strengthen the local ecosystem rather than weakening it, and extra GhG emissions are avoided, as these species would have existed in the wild anyway.
- it reduces the distances food needs to travel
- several animal species can be grown for a range of applications, including transport and use as draft animals
- although animal husbandry has a negative impact on the environment, the impact can be a bit reduced. Some of the key tools to grazing management include fencing off the grazing area into smaller areas called paddocksW, lowering stock density, and moving the stock between paddocks frequently.
- increased amount of food products from animals
Cons of animal husbandry
- creates huge methane emissions (90 millon tons worldwide, appearantly 510 million tons is sufficient to kill everyone on the planet, ie due to climate change)
- can transfer disease,
- wasteful method (energy is lost in conversion of grass to meat)
- very labour-intensive and (depending on what it's compared against, low-yield) method of protein production
- can disrupt the local ecosystem by taking up a lot of space and preventing the housing of other animal and plant species
- ethical considerations by certain individuals
Regarding labour intensity:
Note that cattle farms are always very labour intensive, as they generally feed with grain, ... (not grass). That is however if you include the work for the growing the feed.[verification needed]
Although due to the increased use of machinery (ie harvesters), a lot less people are required to grow grain, grain still requires a lot of processing (cutting, beating/dehusking, may require pesticide use, water, ... ) So it is nevertheless very energy intensive, labour intensive (though not human labour intensive) Regardless, what I mostly mean is that a additional crop is often grown to feed the animal at all, and this should be prevented. If the animal is only fed with grass (which is a crop humans can't digest), the issue is completely eliminated.
Note that besides allowing the animals to graze on the grasslands, it may also be appropriate to grow (and/or store) native grasses, herbaceous plants, legumes to feed the animal ie in certain periods of the year. See http://en.wikipedia.org/wiki/Hay
Slaughtering and processing
The animal needs to be slaughtered and processed in such a way that most of the animal can be used. There is always a degree of waste (unusable animal parts), and not all animal parts are as healthy/tasty. See Butchering a Beef (Bittersweet, Volume VII, No. 1, Fall 1979)
- List of appropriate draft animals
- List of appropriate animals for transport
- Vegetarianism and veganism
- Breeding of fauna and flora: a controversial issue
- How to Direct Market Your Beef - Download this 96 page book free as a PDF file.
- How to Direct Market Your Beef" portrays how one couple used their family's ranch to launch a profitable, grass-based beef operation focused on direct market sales.