NO AVOCADO - avocado conatin the toxin persin. Leaves of the avocado are the most toxic ... and before you say "we dont have avocado trees in Tasmania" think again ... I have one in my backyard, and perhaps you do too if it is a garden that you havent planted from scratch and are unfamiliar with its foliage.
NO CHOCOLATE - contains the toxin methylxanthines theobromine which should be avoided.
NO CAFFINE + NO ALCOHOL (for obvious reasons!)
NO TEA BAGS
NO APPLE SEEDS - apple seeds contain small amounts of cyanide - please core all your apples before giving to any of your animals
NO POTATOES - potatoes are part of the nightshade family. The toxin in potatoes is called solanine. This toxin can cause diarrhea and heart failure. Some people have told me that if you cook the skins they are then ok, but personally i would prefer to put them in the compost bin and be safe than sorry.
NO TOMATO LEAVES | NO RHUBARB STALKS | NO EGGPLANT LEAVES - these are also all part of the nightshade family. Giving your hens the green tomatoes from your vines should also be avoided.
NO RAW DRIED BEANS - which contain phytohemagglutinin (PHA/hemaglutin), a natural insecticide that can be harmful unless the dried beans are soaked and then properly cooked. Once cooked, they are fine to feed. Interesting note, sprouted beans are fine for your chickens. The act of sprouting also kills the hemaglutin.Sprouting your own beans as a feed source is a greatway of ensuring adequate greens.
NO ONIONS - which contain a toxin called thiosulphate that destroys red blood cells. Excessive amounts can cause jaundice or anemia in your hens or even death. Some people claim that onions will taint the taste of your eggs as well. We don't recommend feeding onions because any possible health benefits are far outweighed by the potential health risk
NEVER FEED MOULDY FOODS, although overripe fruits, wilted veggies and stale cereal or bread products are all fine. Nothing too salty/sweet/fried. Self-explanatory, if its not good for you, it's probably not good for them either. They can get overweight which affects their overall health and laying ability.
Citrus is thought to interfere with calcium absorption and contribute to thin-shelled and fewer eggs, so don't feed citrus fruits regularly.