Effects of Aldrin on Young Pen-Reared Pheasants
نویسندگان
چکیده
منابع مشابه
A Biotelemetery Study of Survival of Pen-Reared Pheasants Released in Selected Habitats
Juvenile game-farm pheasants (Phasianus colchicus) equipped with radio transmitters were released in optimal and marginal habitats in southern and central Minnesota, respectively. The releases were intended to study survival rates and causes of mortality of pheasants raised and stocked in the Minnesota day-old-chick program. Of 74 birds which were tracked during the 28 days following their rele...
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اغلب تحقیقات انجام شده در حوزه ی " یادگیری مشارکتی " نشان ازتاثیرات مثبت آن بر موفقیت تحصیلی ، افزایش دانش و توانش زبانی، انگیزه ، تعاملات میان دانش آموزان(مهارتهای گروهی و پذیرش افراد با سطح درسی ضعیفتردر گروه)، و هم چنین علاقه به محیط آموزشی دارد .البته لازم به ذکر است که تحقیقاتی هم حاکی از عدم تاثیر این نوع یادگیری وجود دارد. بر اساس این پیشینه ، پژوهش حاضر به بررسی تاثیر "مدل یادگیری با هم...
15 صفحه اولAvian encephalomyelitis virus in reared pheasants: a case study.
An outbreak of neurological disease occurred in pheasant chicks on a game farm in 2007. The disease was first seen in the 10th hatching of chicks on the farm. Affected chicks showed trembling and incoordination from the time of hatching, and subsequently blindness and cataract formation was seen in some of the affected chicks at 3 weeks of age. The peak mortality and culling figure was 21.0% in...
متن کاملPotential pathological effects of blood flukes (Digenea: Sanguinicolidae) on pen-reared marine fishes
Sanguinicolids, or fish blood flukes, infect the vascular system of both marine and freshwater fishes, and some act as serious pathogens of hosts in aquaculture. Blood flukes typically possess a relatively benign relationship with wild fishes; however, cultured hosts near appropriate intermediate hosts (i.e., snail, bivalve, or polychaete) may accumulate heavy infections of the worms and their ...
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ژورنال
عنوان ژورنال: The Journal of Wildlife Management
سال: 1971
ISSN: 0022-541X
DOI: 10.2307/3799693