I routinely add hemp seed for all my birds. I've only been adding it for a few months so I can't comment on the long term effects but everyone looks bright and glossy. I only add about a tablespoon to their evening feed but I think to benefit Nohope more quickly, it might be worth adding more. They all seem to enjoy the seeds. A study on supplementing the diet of laying hens with it, found concentrations of between 10 and 20% in the feed improved not only the hens' wellbeing but also increased the nutritional value of the eggs:
https://www.google.com/url?sa=t&sou...EQFnoECAsQAQ&usg=AOvVaw3eYyM0THZ0r1-YAHCrtVBr
If you're going to use oil, the supplementation is somewhat less, up to 12%.
I'd be comfortable giving Nohope a teaspoon of seeds a day, if he were mine. I'd also lightly crush them to release the oil and make it a little easier for him to absorb the good stuff.
I also came across this article when researching hemp seed which suggests it's use as an alternate protein source in chicken feed:
https://www.google.com/url?sa=t&sou...EQFnoECAoQAQ&usg=AOvVaw1AQbiBUsiemjIum-f_7Wpv
As far as vit K1 is concerned, it's useful in supporting poisoning cases where blood coagulation is compromised, e.g. rat poison or warfarin. It might also help in other situations where internal bleeding is an issue? The dosage is 0.2-2.2mg/kg given intramuscularly or subcutaneously every 4 to 8 hours until stabilized. Once stabilized, it is administered usually once daily for at least 2 weeks or longer, depending on the severity.
There's good information at:
http://www.poultrydvm.com/condition/rodenticide-toxicity
Activated charcoal, I don't think there's a limit on how much you can give but for poisoning cases, time is of the essence. I have used it for mild tummy upsets in my cats, chickens and my surrogate dog, alongside good old-fashioned kaolin clay or bentonite clay powder. I mix a teaspoon of each with natural yoghurt and feed it 3-4 times a day. If the upset lasts longer than 2 days, or the animal shows no improvement or deteriorates, I stop treatment and seek expert advice.