Sour Crop: the hard facts

The Chook Doctor explains:
[Sour Crop] is a common problem with hens, especially if they are allowed to graze on grass when they are first released. These birds are not used to eating such natural foods, so they tend not to know how to do it properly. Long strands of grass in the crops of such birds often are unable to pass through the digestive system, [so they] bind in the crop and ferment.​
A quick method of telling whether a chicken has Sour Crop or not is to gently squeeze it and sniff the air that’s expelled from its mouth. If the bird has Sour Crop then the air will smell awful, if not… well, I don’t suppose a chicken smells very nice anyway, but apparently la différence d’odeur is marked. (Of course, sniffing chickens is also one of the eight sure-fire ways of being marked down as a looney, but we’ll put that aside for the moment.)
Fear not, help is at hand (If you were a chicken)

Luckily for you my mother has a cure for Sour Crop. First she grabs you (this isn’t hard because you’re just lying there burping), then she sticks a tube down your throat, and pours a mixture of yogurt and olive oil into you.
That done, she takes hold of your feet, hangs you upside down, and massages your stomach and crop until lots of green and white muck comes pouring out of you.
Finally she flips you the right way up, pats you on the head, and puts you down. You ruffle your feathers, squawk a bit, ruffle your feathers some more, and then walk off in as dignified a manner as you can muster.
It’s a tough life, being a chicken.

My chick is "Star Gazing" and I suspect a Thiamine Deficiency.
I am going to add to this information a little at a time. For now though I wanted to get a high thiamine diet posted in case someone needs it. The common vit. drops work ok but I think this diet in addition works much better. So here is the diet which makes about enough for a day depending on the age and size of chick:
1/2 cup of flock raiser crumbles or non medicated chick starter
1 tbsp Marmite
2 tbsp whole seseme seeds (roasted or not)
2 tbsp shelled sunflower seeds
1 tsp dried coriander leaves
The marmite has a butter like consistancy and so needs to be mixed well in the feed and refrigerated.



Signs and Symptoms of diseases and conditions common in poultry
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Table 1. Possible clinical signs for common respiratory diseases of poultry.

Clinical signs
pox1Newcastle2IB3
Quail
Bronchitis
AI4coryza5LT6TRT7ChlamydiosisSHS8MG9MS10MM11Aspergillosis
CoughingXX XX X XXX X
SneezingXX XXXX XXXXX
Shaking head X X XX X XX
Rales (abnormal breathing sound)XXXXXXXXXXXXX
GaspingXXXX X XXX X
Discharge from eyesXXXX XX XXXX
Nasal discharge XXX XX XXXX

Swelling of face and/or
wattles
X XXXXXXXXX

Bluish-purple discoloration
of face
X XX X X
Retarded growthXX X XX X XXX
Lameness X
General diarrhea X XXXX X X
Green, watery diarrhea X X X X
Swollen joints X
Paralysis X
Twisting of head and neck X X X XX

Red/white spots on legs
and comb
X
Warts/scabsX
Conjunctivitis X XXXXXXX
Prostration X X X X

1
Fowl Pox
2Newcastle disease
3Infectious bronchitis
4Avian influenza
5Infectious coryza
6Laryngotracheitis
7Turkey rhinotracheitis
8Swollen head syndrome
9Mycoplasma gallisepticum
10Mycoplasma synoviae
11Mycoplasma meleagridis
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Table 2. [container]
Table 2. Possible clinical signs for common nonrespiratory viral diseases of poultry.
Clinical Signs
Marek's
disease

Lymphoid
leukosis

Infectious
bursal disease

Equine
encephalitis

Avian
encephalitis

Egg drop
syndrome

Infectious
tenosynovitis
TenosynovitisSepticemia form
Reduced feed consumption XXX
Labored breathingX
Weight loss/stunted growth X X
Reduced water consumption X X
Bluish-purple discoloration of the face X
Enlarged abdomen X
LamenessX X
Swollen joints X
Twisted necks X
ParalysisX XX
Inactive X
Tremors X
IncoordinationX XX
BlindnessX
PalenessX
Pale scaly combsX
Greenish diarrheaXX
Diarrhea (general) X X
Watery droppings X
Thin-shelled eggs X
Shell-less eggs X
Reduced egg production X X
Increased mortality X
Dullness X
Weakness X
Emaciation X
Helicopter wings X
Ruffled feathers X
Small comb X
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Table 3. [container]
Table 3. Possible clinical signs of nonrespiratory bacterial diseases of poultry.

Clinical signs

Fowl
cholera
OmphalitisPullorum
Necrotic
enteritis

Ulcerative
enteritis
BotulismStaphylococcus
Dead birds, no signs of diseaseX
FeverX X
Reduced feed consumptionX XX X
Discharge from mouthX
Ruffled feathersX X
Labored breathingX X
Weight loss/stunted growthX XXX
LamenessX X
Swollen jointsX X
Abscessed wattlesX
Swollen foot padsX X
Twisted necksX
Navel infection X
Dehydration X
Huddling of chicks X X
Droopiness X
Diarrhea/pasted ventX XX X
White feces X X
Blood in feces X
Paralysis X
Cyanotic
Foul odor X X
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