نتایج جستجو برای: ornamental fish xiphophorus helleri
تعداد نتایج: 109255 فیلتر نتایج به سال:
Green terror (Andinoacara rivulatus) is one of the most popular ornamental freshwater fish of the Cichlidae, which is very common in our country. The aim of this study was to investigate the cause of green terror losses in an ornamental fish breeding center. In the summer of 1400, following the chronic and continuous losses of mature green terrors in a center for the reproduction and breeding o...
BACKGROUND Antimicrobials are used to directly control bacterial infections in pet (ornamental) fish and are routinely added to the water these fish are shipped in to suppress the growth of potential pathogens during transport. METHODOLOGY/PRINCIPAL FINDINGS To assess the potential effects of this sustained selection pressure, 127 Aeromonas spp. isolated from warm and cold water ornamental fi...
Neoplastic transformation of pigment cells in the teleostean fish Xiphophorus is mediated by a cellular oncogene (Tu). Normally. Tu is suppressed by multiple regulating genes (R). Depending on impairment and loss of R genes, Tu is permitted to express itself phenotypically. In the pigment cell system, different degrees of Tu expression lead to small spots of transformed cells or to benign or ma...
Ornamental fish farming, like other aquaculture productions, it depends on the quality and quantity of egg production, hatching, fecundity and survival of the larvae. In general, every step of aquaculture, followed by nutritional goals. Most of these studies are in the stages of larval growth. Because the highest costs are imposed on aquaculture and the most critical biological period of orname...
Since 1993, various public and private institutions have supported the development of a freshwater ornamental industry in Hawai‘i which, based on current success, must be intensive and utilize the latest in culture technologies to remain competitive. Feeding and palatability trials using commercial feeds suggests that very little is understood about the nutritional requirements of the 1500 spec...
Fishes of the genus Xiphophorus (platyfishes and swordtails) are small, internally fertilizing, livebearing, and derived from freshwater habitats in Mexico, Guatemala, Belize, and Honduras. Scientists have used these fishes in cancer research studies for more than 70 yr. The genus is presently composed of 22 species that are quite divergent in their external morphology. Most cancer studies usin...
Veterinary practice is a private business that provides professional health care to many species of animals. There is now an increasing division of the veterinary profession into specialist niches, and exotic pet medicine is currently an expanding area. Many veterinarians are becoming speciesspecific treating only horses or poultry, or food-fish. Some are discipline-specific such as dermatologi...
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