Life Sciences Commons^™

Effects Of Adrenalectomy On Hemoconcentration And Blood Ph, Urea And Electrolytes In The Mongolian Gerbil (Meriones Unguiculatus), Magally Aellos De Cova

Master's Theses

The effects of adrenalectomy on some blood profiles of the Mongolian gerbil, Meriones unguiculatus, were studied in order to clarify the possible causes of its short survival after adrenal ablation. Measurements of hematocrit, pH, urea and electrolytes were made 18, 24 and 30 hours after surgery. Results show the expected alterations: hemoconcentration, metabolic acidosis, high values of urea and disturbances in electrolytes. While hyponatremia was significant only after 24 hours, important hypochloremia was not present at any time. Hyperkalemia was the most significant alteration observed. It occurred as early as 18 hours after surgery, suggesting that it may be an …

A Survey Of The Living Hermatypic Corals On The West Fore Reef Of Discovery Bay, Jamaica After The Occurence Of Hurricane Allen, James Arthur Crawford

Master's Theses

No abstract provided.

Development Of A Dna Probe For The Rapid Detection Of Cytomegalovirus, Nell Lurain

Master's Theses

No abstract provided.

Determination Of An Enzyme Deficiency In The Saccharomyces Cerevisiae Mutant Mod5-1, Lacking Isopentenylated Trnas, Sopiah Suid

Master's Theses

No abstract provided.

Non-Visual Feeding Behavior Of The Mottled Sculpin Cottus Bairdi: Ecological And Evolutionary Implications, Denise Maxine Denham Hoekstra

Master's Theses

No abstract provided.

Characteristics Of A Ca++ Atpase Enzyme In The Epidermis Of Molting Blue Crabs, Callinectes Sapidus, Joanne Elizabeth Lapetina

Master's Theses

Epidermal Ca⁺⁺-activated ATPase was investigated in relation to the molt cycle of the blue crab, Callinectes sapidus. Premolt and postmolt tissue samples demonstrated significant elevations in Ca⁺⁺-activated ATPase activity in comparison to intermolt tissue samples. These results support the suggestion that this enzyme may participate in demineralization of the old cuticle, as well as calcification of the new cuticle.

The enzyme is localized in the heavy particulate-nuclear fraction and is distinguished from mitochondrial Ca⁺⁺ ATPase found in other tissues by differences in sensitivity to mersalyl acid. 0 The enzyme is most active at 49 C …

The Effects Of Photoperiod And Melatonin Injections On The Reproductive System Of The Male Mongolian Gerbil (Meriones Unguiculatus), Luis Jose Cova Marchan

Master's Theses

This work was undertaken to study the effects of photoperiod and melatonin on fertility in male Mongolian gerbils (Meriones unguiculatus). Four groups of fifteen animals each, were placed in different photoperiods (ambient, ranging from 14L:10D to 11.3L:12.3D; 24L:10D; 14L:10D; and 1L:23D). After 35 days, three gerbils from each photoperiod condition were sacrificed and the testes, epididymides, seminal vesicles, prostate, kidneys, adrenals, thymus and hypophysis were weighed. The testes and epididymides were placed in Bouin's fixative and used for histological studies. Also, two males from each photoperiod condition were paired individually with a female. The remaining animals of each photoperiod condition …