Hybrids of Ring-Necked Pheasants, Turkeys, and Domestic Fowl
نویسندگان
چکیده
منابع مشابه
Ectoparasites of ring-necked pheasants in Nebraska.
In 1971, 1983 and 1984, ectoparasites were identified on 61 ring-necked pheasants (Phasianus colchicus) from Nebraska. Birds were collected throughout the state from 11 of 93 counties. Four species of chewing lice (Mallophaga) were collected: Lipeurus maculosus, Goniodes colchici, Lagopoecus colchicus and Amyrsidea megalosoma. One species of analgid mite, Megninia sp. was collected. Apparently,...
متن کاملSeasonal Changes in Thymus in Ring-necked Pheasants
The thymus, a paired lymphoid gland located in the neck region or upper abdominal cavity in birds and mammals, has been the subject of considerable attention in recent years. This gland plays a major role in the immunological system, being indispensable for the development of lymphoid cells in the lymph nodes, spleen, and other lymphoid organs; the thymus, itself, does not form antibodies (Haur...
متن کاملComparison of the replication of influenza A viruses in Chinese ring-necked pheasants and chukar partridges.
We investigated the replication and transmission of avian influenza A viruses in two species thought to be intermediate hosts in the spread of influenza A viruses in live poultry markets: Chinese ring-necked pheasants and chukar partridges. All 15 hemagglutinin subtypes replicated in pheasants, and most subtypes transmitted to naïve contact pheasants, primarily via the fecal-oral route. Many vi...
متن کاملSensitivity Analyses of a Population Projection Model of Ring-Necked Pheasants
A large literature exists on population dynamics of ring-necked pheasant (Phasianus colchicus) in North America, but there has not been an attempt to formulate a matrix model nor a sensitivity analysis of the relationships between vital rates and population finite growth rate (k) that can be used to guide management. We summarized demographic data available from a 5-year field study in Iowa, US...
متن کاملMicroscopic fungi in eggs of ring-necked pheasants kept in aviaries.
Pheasant eggs of different colors differ with regard to physical properties. This study was conducted to ascertain the intensity of infestation by microscopic fungi based on egg color. Settling intensity by microscopic fungi of pheasant egg shells and the content of eggs of different color during a 7-d storage period was investigated. The content of ergosterol (ERG) was used as a quantitative i...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1957
ISSN: 0032-5791
DOI: 10.3382/ps.0361323