نتایج جستجو برای: tubifex
تعداد نتایج: 194 فیلتر نتایج به سال:
Highlight Research The dose, duration of immersion, and time interval immersion the estradiol-17β affect rate cannibalism increase seed survival Asian redtail catfish in low treatment this research. Over optimum increased incidence at decrease growth performance. Treatment estradiol-17β, give ability to live on high density has an effect concentration plasma body testosterone cortisol Abstract ...
it is well established that reproduction is sensitive to the state of energy reserves, and that there is a balance between energy homeostasis and fertility. in this view, this study examined the effects of different diets on growth and reproductive performance of fresh water angelfish. twenty four pairs of angelfish (weighing 3.58 ± 0.24 g) were fed with four types of diets including live earth...
The demand for ornamental fish is currently increasing while the availability in nature decreasing due to overfishing. Clownfish (Amphiprion ocellaris) a type of marine that widely kept aquariums, but problem rapid decline water quality activity these fish. recirculation system one way can be used management. study aimed analyze filter stabilize seawater clownfish (rearing containers. This rese...
119 Small invertebrates are functionally important in many terrestrial and aquatic ecosystems (Wilson 1992, Freckman et al. 1997, Palmer et al. 1997, Postel and Carpenter 1997). In freshwater sediments, benthic invertebrates are diverse and abundant, but they are often patchily distributed and relatively difficult to sample, especially when they live in deep subsurface sediments. Thus, the spec...
It is well established that reproduction is sensitive to the state of energy reserves, and that there is a balance between energy homeostasis and fertility. In this view, this study examined the effects of different diets on growth and reproductive performance of fresh water angelfish. Twenty four pairs of angelfish (weighing 3.58 ± 0.24 g) were fed with four types of diets including live earth...
This study aims to investigate the relationship between the development of pharyngeal taste buds (TBs) and first feeding of Hucho taimen. Larvae were fed with live food (water flea and tubifex) for 8 weeks. TBs of larval pharynx were histologically examined using light microscopy during the rearing experiment. The results showed that the first few TBs primordia were visible within the pharynx 2...
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