gizzard


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gizzard

(gĭz′ərd)
n.
1. A modified muscular pouch behind the stomach in the digestive tract of birds, having a thick lining and often containing ingested grit that aids in the breakdown of seeds before digestion.
2. A similar digestive organ found in certain invertebrates, such as the earthworm.

gizzard

a portion of the anterior part of the alimentary canal where food materials are broken up prior to digestion. Usually the gizzard possesses strong muscular walls and in invertebrates has internal projections. In some birds, such as the curlew, the gizzard lining is regularly renewed and the old lining cast out in the form of a pellet.

gizzard

the muscular stomach of the bird, separated from the more cranial proventriculus or glandular stomach by a constriction. Called also ventriculus.

green gizzard
gizzard stained by a dye used in feed wheat that makes it unsaleable as human food.
gizzard impaction
can cause heavy mortality in young turkey poults; the gizzard is impacted with fibrous material, thought due to eating litter.
gizzard myopathy
occurs as part of a vitamin E-selenium nutritional deficiency.
gizzard strongyles
see amidostomumanseris.
gizzard worms
Habronema incertum causes sudden death or chronic watery diarrhea in companion birds.
References in periodicals archive ?
Gross morphology and general histology of the esophagus, gizzard and proventriculus of the house sparrow (Passer Domesticus).
To observe the effects of Cd on treated gulls the liver, gizzard and kidney tissues were fixed in 10% Formalin.
The highest range of Campylobacter species outbreaks was observed in poultry liver (49/2 %), followed by gizzard (42/8 %), heart (33/3 %) and chicken meat (25/4%).
For histological studies, small pieces of proventriculus and gizzard were embedded in paraffin blocks.
Moreover, it was reported that the supplementation of SM in broilers did not effect on liver, gizzard and proventriculus weights at high level (46.
2 with chicken gizzard and beef diets, respectively, which were not significantly different (P = 0.
Table--Comparison of responses of hens to lime stone and probiotic (Hens at 58-68wk of ages) Treatments Crop PH Gizzard Cecum Liver PH PH Weight Main effect of Calciun 1--Powdery lime 4.
Gizzard shad, johnny darter, and yellow bullhead did not differ significantly in trophic position between habitats.
dominated with gizzard shad and common carp) based on standardized survey results.
Benham (1888: 72) reported on a specimen from an unknown type locality, with two pairs of nephridia per segment and the gizzard in segment 6, and named it Brachydrilus [sp.