منابع مشابه
Arsenical Compounds in the Treatment of Blackhead in Turkeys
The natural form of blackhead, although very fatal to young turkeys, is favorably influenced by treatment with certain of the newer arsenical compounds. Neoarsphenamine injected intravenously in toxic doses has a somewhat favorable effect on the course of the spontaneous disease and evidently lowers the mortality. Its instability, its pronounced toxicity for young turkeys, as well as the diffic...
متن کاملEpidemiology of Blackhead in Turkeys under Approximately Natural Conditions
The foregoing experiments in outdoor, unprotected enclosures demonstrates the difficulties surrounding the rearing of turkeys. These are discussed from another view-point and to avoid repetition only a few outlying facts should be considered here. The occasional presence of coccidia, the presence of Heterakis papillosa in the ceca, the occurrence of cases of aspergillosis and of chicken-pox in ...
متن کاملExperimental Myopia in Chicks
more frequently in the spring and the fall, and a relationship to temperature or to changes in temperature may be involved (unpublished observations, Kaufman HE, 1981; Barren BA, 1994). The appearance of fever blisters and clinical herpes during temperature stress in hudans is a well-known clinical phenomenon. Our primate model may provide a way to study this relationship in a laboratory settin...
متن کاملNutritional Encephalomalacia in Chicks
1. Nutritional encephalomalacia may be induced in chicks up to the age of approximately 2 months. As the preliminary feeding period on a natural foods diet is increased, the percentage incidence of the disease becomes progressively less. The average time between institution of diet and appearance of the disease tends to diminish. 2. There is no correlation between growth and incidence of the di...
متن کاملArithmetic in newborn chicks.
Newly hatched domestic chicks were reared with five identical objects. On days 3 or 4, chicks underwent free-choice tests in which sets of three and two of the five original objects disappeared (either simultaneously or one by one), each behind one of two opaque identical screens. Chicks spontaneously inspected the screen occluding the larger set (experiment 1). Results were confirmed under con...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1925
ISSN: 0032-5791
DOI: 10.3382/ps.0040250