منابع مشابه
Requirement of neuroD for photoreceptor formation in the chick retina.
PURPOSE The genetic control of photoreceptor cell fate in the vertebrate retina is poorly understood. Published studies suggest that the genetic program underlying photoreceptor production involves neuroD, a proneural basic helix-loop-helix (bHLH) gene. The present study investigates whether neuroD is necessary for photoreceptor cell development, by using loss-of-function analyses. METHOD Eng...
متن کاملCalcium requirement of growing rabbits.
T HE minimum calcium requirement of growing rabbits has not been determined. In practice dietary calcium levels have been based largely on information gained from other animals. Commercial rabbit diets commonly contain 0.8 to 1.0% calcium. Since the domestic rabbit is extensively used as an experimental animal and is increasingly used as a source of edible meat, particularly in the Los Angeles ...
متن کاملthe effect of oxytetracycline on serum calcium, phosphorus and magnesium in cattle
نتایج این مطالعه نشان می دهد که مقدار کلسیم (یونیزه و تام)، منیزیم و فسفر به طور معنی داری تغییر پیدا کرد به جزء مقدار کلسیم تام و منیزیم در روش داخل عضلانی که تغییر معنی داری نداشته است. بر اساس نتایج این مطالعه می توان نتیجه گیری کرد که اکسی تتراساکلین بر روی مقادیر سرمی کلسیم و منیزیم تأثیر می گذارد باید مقدار این کاتیون ها در بیماران، در هنگامی که اکسی تتراسایکلین استفاده می شود مورد توجه ق...
15 صفحه اولCalcium and Phosphorus Studies in the Chick*
The majority of the published data dealing with blood calcium and phosphorus changes in rickets is based upon blood determinations made after the appearance of rickets. Values obtained after the symptoms of rickets are evident do not show when t,he reduction in the calcium and phosphorus first t.akes place. A true understanding of the relation of vitamin D t,o these blood changes can be obtaine...
متن کاملCalcium Requirement of Maintenance in Man,*
The demonstration upon laboratory animals by Osborne and Mendel,’ that calcium necessarily occupies a prominent place in the inorganic food supply, and that of McCollum, Simmonds, and Parsons,2 that calcium is one of the limiting fact’ors in a very large proportion of our staple foods, lends added interest to the measurement of the calcium requirement in man and the comparison of the amount of ...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1971
ISSN: 0032-5791
DOI: 10.3382/ps.0500035