Need some advice - Rooster w open mouth breathing while sitting/lying down

Need some help here. I have a 5 yr old rooster. He is w 30 hens and 1 other rooster who is the dominant rooster. I have noticed over the past couple of months that Kenny - (the rooster I am concerned about) seems to be thin and weak. Brought him over to the house, thought I would give him an opportunity to build up his strength ( thought he was not getting enough to eat w other rooster). He seems good during the day, eating well however he does seem so sneeze often and at night when I have him in the kennel box and when he is lying down in the house, he has open mouth breathing. Any suggestions??? I have read that gape worm can be treated w Valbazine. 1/2 cc - but my question is how long to you treat for? And not sure this is what I am dealing with - help?

Oh and also when he is standing - there is no open mouth breathing. He is eating, drinking and seem alert, however I have noticed that he seems to sneeze a lot during the day.

My thoughts were to bring him over to the house to join 4 hens here, let him be the rooster here but I am concerned to put him w the other 4 hens.

The rest of the flock that he was with - 30+ hens and rooster are all in good health-no others are showing any kind of symptoms. I did not realize that he was in this kind of shape. There was nothing obvious until I brought him to the house to observe. It seems that he is struggling and I would appreciate any input or suggestions to help him and me out. I would like to keep him here at the house w the 4 hens - no competition and he would be the dominate male, but I don't want to bring anything in to my hens.

Please help and I welcome suggestions. Thank you!

 

Thank you for your post. Kenny is this Rooster's name

1. Since he has been in the house - sneezing less.
2. Maybe you have experienced this also: when feeding them cracked corn - there is dust from the cracking. I have notice that times when the girls as well and the roosters will sneeze at times - I guess from the dust. Any way nothing that is out of the ordinary.
3. No candles etc
4. Dark tips - no

However he does have whiteish bumps on his comb and has for years.

When he is outside standing, I do not see any signs of slight open mouth breathing. It seem to be more so when he sits down.

5. Wormed? I think last year, but certainly not recently.

What I thought was happening was the other Rooster- whom by the way is the son of Kenny, has grown into the dominate male and does push Kenny around, chase his etc. My thinking was - enough of that- Kenny is a nervous wreck and can not get enough to eat and that is why he is so thin and nervous. Not until I brought him over to the house did I see the rest of the issues.

What my plans were was to incorporate Kenny into the flock of 4 girls I have here at the house. He would have his own flock, gain weight and build him up. NOW I am not sure what to do. I don't want to introduce anything to the 4 girls here and I am not sure he would survive long with the other 30.

Kenny was outside yesterday in a pen, he ate, pecked the ground etc. Standing tall - looking like a rooster. Though ok give him another day or so inside. I see no signs of running nose etc, just a little sneeze once in a while and when he lies down - open mouth breathing.

I have valbazine and antibiotics injectable.

Please let me know your thoughts - Thank you for your help and kindness. Kim