crop

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crop

(krŏp)
n.
Zoology
a. A pouchlike enlargement of a bird's gullet in which food is partially digested or stored for regurgitation to nestlings.
b. A similar enlargement in the digestive tract of annelids and insects.

crop

  1. in vertebrates, particularly some birds, an expanded part of the oesophagus where food is stored.
  2. in invertebrates, an expansion of the anterior part of the gut system where food is either digested or stored.
  3. the agricultural or commercial fishery yield.
  4. in ecological terms, the difference between gross annual production and the net production - i.e. the material eaten by predators (or herbivores where the food is a vegetable), including that taken by man, and that consumed by organisms responsible for decay. See STANDING CROP.

crop

1. a saccular diverticulum of the esophagus just anterior to the entrance to the thorax. Present in all domestic birds.
2. domesticated plants sown and harvested for use by humans.
3. a cosmetic surgical procedure carried out on the ears of dogs of certain breeds. See ear cropping.

crop-bound
impaction of the crop in a bird.
crop-eared
small eared.
crop flush
1. treatment of a sick bird by a flushing out, with normal saline via an esophageal tube, of food and debris from the crop.
2. see also crop wash (below).
impacted crop
distention of the crop with undigested food.
crop milk
crumbly material, composed of lipid-laden, desquamated epithelial cells mixed with food, elaborated by both male and female pigeons in the crop and regurgitated to feed the nestlings.
pendulous crop
a condition of domesticated birds in which the crop becomes very distended and full of feed. Sporadic cases only, but there is an inherited predisposition to gross distention in turkeys. Called also impacted crop or crop bound.
crop residues
the remains of a crop after the commercially sought part of it has been harvested, e.g. wheat stubble, pea haulms, oaten straw.
crop wash
used in the differential diagnosis of trichomoniasis and candidiasis and to assess crop flora in birds with regurgitation and other signs referable to upper alimentary tract disease.
References in classic literature ?
Is the Yorkshire crop a particularly rich one just at present?
Nowadays, however, she gave herself no trouble about seed time nor harvest, but left the farmers to take care of their own affairs, and the crops to fade or flourish, as the case might be.
The Sheikh of the village spoke of the crops from which the rulers of all lands draw revenue; but the Governor's eyes were fixed, between his horse's ears, on the nearest water-channel.
Three minutes later he was telling me that the condition of the maize crop was something disgraceful, and that the railway companies would not pay him enough for his timber.
Their tails, at a legislative price, now bring me in a good income; for I have discovered a way, in which, by means of Macassar oil, I can force three crops in a year.
He wished Rose had been a man that he might go into that shack and eat ham and eggs with him while they talked crops and politics and animals.
Evidently the Munchkins were good farmers and able to raise large crops.
She handled their crops, and knew what they had eaten, and if too little or too much; her face enacting a vivid pantomime of the criticisms passing in her mind.
Every landlady makes you feel thoroughly ashamed of yourself by informing you, whenever the subject crops up, that she used to get twice as much for her rooms as you are paying.
Nearly every foot of ground is under cultivation, and two or three crops a year of each article are produced, but nothing is exported save a few oranges--chiefly to England.
He became rather distinguished in his side of the county as a theoretic and practical farmer, and produced a work on the "Cultivation of Green Crops and the Economy of Cattle-Feeding" which won him high congratulations at agricultural meetings.
It was not a big farm, nor a very good one, because sometimes the rain did not come when the crops needed it, and then everything withered and dried up.