Topic
Gizzard
About: Gizzard is a research topic. Over the lifetime, 785 publications have been published within this topic receiving 15185 citations. The topic is also known as: ventriculus & gigerium.
Papers published on a yearly basis
1 / 2
Papers
TL;DR: The gizzard has a number of important functions such as aiding digestion by particle size reduction, chemical degradation of nutrients and regulation of feed flow, and responds rapidly to changes in the coarseness of the diet.
Abstract: The gizzard has a number of important functions, such as aiding digestion by particle size reduction, chemical degradation of nutrients and regulation of feed flow, and responds rapidly to changes in the coarseness of the diet. This review summarises findings on the function of the gizzard, the interaction between diet and gizzard function, and the nutritional consequences of these interactions. Due to the reported improvements in nutrient availability when structural components which stimulate gizzard development has been added to the diet, it may be recommended to include at least 20 to 30% cereal particles larger than 1 mm in size, or to include at least 3% coarse fibres such as oat hulls, in the diet.
455 citations
TL;DR: It is concluded that whole wheat feeding stimulates gizzard function, which in turn prevents potentially pathogenic bacteria from entering the intestinal tract.
423 citations
TL;DR: The total amount of bile acids in gizzard increased with access to wood shavings due to an increase in the weight of gizzard contents, indicating an increased gastroduodenal reflux, and feed conversion efficiency was improved by oat hull inclusion.
Abstract: 1. An experiment was conducted to study the effects of inclusion of oat hulls in diets based on whole or ground wheat for broilers. Effects of wood shavings on layers were investigated in a further experiment. 2. Inclusion of oat hulls in wheat-based broiler diets did not affect weight gain. Feed conversion efficiency (FCE), corrected for insoluble fibre contents, was improved by oat hull inclusion. 3. Gizzard size increased with inclusion of oat hulls, whole wheat, wood shavings and grit. 4. Starch digestibility was significantly increased by inclusion of oat hulls for broilers, and by wood shavings for layers. 5. Wood shavings and whole wheat did not affect bile acid concentration of gizzard contents. However, the total amount of bile acids in gizzard increased with access to wood shavings due to an increase in the weight of gizzard contents, indicating an increased gastroduodenal reflux. 6. Fibre concentration was considerably higher in the gizzard contents than in the feed. 7. Duodenal particle size decreased with access to grit. No effect of hulls or whole wheat inclusion was found, indicating that all particles are ground to a certain critical size before leaving the gizzard.
336 citations
TL;DR: A new high-molecular-weight protein, named filamin, was isolated from chicken gizzard and was found largely to be arranged as a filamentous array very similar to that found for myosin in cultured cells.
Abstract: A new high-molecular-weight protein, named filamin, was isolated from chicken gizzard. In chicken gizzard, filamin is present in an amount approximately 30-40% of that of myosin. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis of highly purified filamin revealed a single polypeptide of about 250,000 daltons. Rabbit antibody directed against purified chicken gizzard filamin did not crossreact with myosin purified from the same source. By the use of microcomplement fixation and indirect immunofluorescent staining with antibodies to chicken gizzard filamin, an antigenically similar or identical protein was found to be widely distributed both in other organs of the chicken and in cultured cells of other species, but not in chicken skeletal muscle. In cultured cells, filamin was found largely to be arranged as a filamentous array very similar to that found for myosin. These data imply that filamin is a widely occurring and chemically conserved component of filaments is smooth muscle and non-muscle cells.
335 citations
TL;DR: It is concluded that rice can be used successfully in broiler diets and that heat processing of the cereal does not have any beneficial effect on broiler performance, and that moderate amounts of fiber in low-fiber diets might improve chick performance at early ages by reducing gizzard pH and improving the utilization of nutrients.
319 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 28 |
| 2024 | 97 |
| 2023 | 96 |
| 2022 | 150 |
| 2021 | 28 |
| 2020 | 22 |