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.
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References in periodicals archive ?
Land Use Changes Associated with Feed Crop Production Contribute
Methane digesters and biogas recovery - masking the environmental consequences of industrial concentrated livestock production
At some point, the potential domestic farm productivity gains from approving GM food and feed crops in these countries will outweigh possible loss of future export sales.
Reinvigorating genetically modified crops: poor farmers in developing nations will benefit if the United States asserts itself in the international arena to develop and promote biotechnology
This doesn't even take into account meat's other environmental impacts, such as the greenhouse gases released by cow manure and the fertilizers used to grow feed crops.
Burger pollution
At the very least, few other importing nations will relish having to compete with China to secure their own access to food and feed crops given China's experience and sophisticated commodity acquisition network.
China's stealthy shake-up of rice market
The European Commission's plan to impose ILUC (indirect land use change - unintended consequence of releasing more carbon emissions due to land-use changes) factors and a 5% cap on fuels from food and feed crops is a "totally irresponsible U-turn" and "puts at risk feed supplies for animals, employment and green growth in rural areas across the EU".
BIOFUELS : COMMISSION PLAN "TOTALLY IRRESPONSIBLE U-TURN" - COPA-COGECA
In the United States, the production of livestock and their feed crops is responsible for one third of the nitrogen and phosphorous discharged into freshwater.
Meat's impact
24,000 The problems are not confined to racecourses either with trainers' gallops waterlogged and the Curragh training grounds being forced to close their extensive network of grass gallops, while hay and feed crops are also set to suffer with wet weather preventing farmers from harvesting.
Irish tracksc ounting the costo f wet spell
Given the current relatively high prices for most grain and feed crops, the traditional interest of the grain handlers and processors has become more nearly aligned with the interests of landowners who see an opportunity to increase their incomes by growing crops, rather than idling land.
NGFA calls on Congress to shrink size, scope of conservation reserve program
The move is part of the authority's efforts to support food security policies in the emirate and aims at assessing the production and nutritional value of a number of feed crops that could substitute the recently banned Rhodes grass, which is a highly water-intensive crop.
Research on to develop new fodder
We focused on the carbon footprint of the feed crops.
Don't blame greenhouse gas emissions on dairy cows
The report noted that the state is alsotrying to end the country's dependenceon barley imports by slashing importsubsidies on the grain, while raisingthem on alternative feed crops, thereport added.
Saudi government support critical for primary farm products output
Production of feed crops, especially feed wheat and barley most drastically decreased in the Volga Valley and in the Central European provinces.
Russia: Feed Consumption Expected to Decrease

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