Sydney Acres
Songster
Quote:
The likelihood of Marek's disease in a nine year old rooster is quite low. He was a very old bird, and cancer is very common in chickens. Fingers crossed for you that is was nothing contagious. Old birds are much more susceptible to intestinal worms (which rarely are visible in the droppings, so either routine fecals at the vet or routine deworming is worthwhile), external parasites, invisible infections, and organ malfunctions (like kidney, heart, and liver disease), as well as cancer, are fairly common. Old birds lose condition very quickly, but invisibly under their feathers. It is probably worthwhile for anyone who has pet chickens to get an accurate scale (either a food scale that weighs up to 10-12 pounds, or a baby scale that weighs up to 20 pounds, widely available for less than $50, and the food scales can be found less than $20 sometimes) and weigh each bird every month. Keep good records, and any time there's an unexpected drop in weight start weighing that bird every day. If the downward trend continues then you know something is wrong, even if they seem fine. It's an easy early warning monitor, and you don't have to have a veterinary degree to recognize a subtle change.
You can often get the older birds to eat better by offering them their regular pellets/crumbles that have been soaked in cool water for a few minutes, fed every morning before it gets so hot. That way you get to observe them eating, and know who is eating well. It also gets them into a routine of eating a larger meal at a certain time of day, and the ones with the sluggish appetites are more likely to participate in the feeding frenzy. You can also add healthy treats to the balanced food this way, instead of feeding the treats separately, so they get to enjoy their treats and eat a balanced meal all at the same time. I sometimes add apple juice or chicken broth to the pellets instead of water for extra flavor. Mixing in treats with wet mash works much better than with dry food, as they're less likely to sort through the wet food looking for the treats.