نتایج جستجو برای: hepatosomatic index
تعداد نتایج: 396094 فیلتر نتایج به سال:
BACKGROUND Pork is an essential component of the diet that has been linked with major degenerative diseases and development of non-alcoholic steatohepatitis (NASH). Previous studies have. Previous studies have demonstrated the in vitro antioxidant activity of silicon (Si). Furthermore, when Si is added to restructured pork (RP) strongly counterbalances the negative effect of high-cholesterol-in...
The necessity for tuna products in the world community continues to increase, while production relies only on catching, thus causing overfishing. Therefore, breeding technology support farming is fundamental be developed. Yellowfin Indonesia has been successful cultivating broodstock. This paper discusses biometric data that changes during cultivation, such as condition factor, hepato and gonad...
Some reproductive biology features of Yellowfin Seabream Acanthopagrusl atus including gonadosomatic index, hepatosomatic index, sex ratio, macroscopic and microscopic survey of gonad development, frequency of different maturationstages and absolute and relative fecundity were investigated. Thirty fish per month were sampled during September 2011 to August 2012 in coastal waters of Hormozgan pr...
Abstract This study aims to determine the effectiveness of adding vitamin C and squid oil commercial feed for broodstock fish ( Anabas testudineus Bloch) on speed gonadal maturation growth. The was conducted three months using a completely randomized design with 4 treatments 3 replications. test were 10 each in treatment hapa, A (Commercial =CF); B (CF + Vit c 2gr/kg; (CF+ ml/kg) D Vitamin 2 g/...
In the present study, effect of cortisol on the ovary of the freshwater fish Notopterus notopterus was studied during four phases of the reproductive cycle. The hormone was injected 60microg/fish for ten days. Cortisol in fish is known to increase the metabolic activity. After the hormone treatment the ovarian somatic index and the hepatosomatic index increases during non breeding phase. The yo...
shirbot ( barbus grypus ) is one of the species in south and southwest of iran which is greatly favorable to residents of the region. unfavorable ecological conditions in habitat of this species and overfishing have led to the reduction of the population of shirbot. therefore, to restore the natural stock of this species, identifying its reproductive cycle associated with its habitat is of a gr...
this study was investigated reproductive differences in fall and spring migrants of caspian lamprey (caspiomyzon wagneri) in the shirud river (southern caspian sea)in 2008. 89 and 15 specimens were sampled in in spring and fall, respectively. generally, fall migratory fish had a significantly lower condition factor (cf) compared to the spring migrants. there was significant relationship between...
Rearing experiments were conducted using several regimes combined with different photoperiods and water temperatures to investigate the role of temperature and photoperiod as environmental cues regulating reproduction in red marbled rockfish, Sebastiscus tertius. The initial gonadosomatic index (GSI) was 1.62±0.32% and that in the 15°C control was 7.01±0.46% at the end of the experiment. The hi...
this study was designed to determine the effects of dietary replacement of fish oil with canola oil ongrowth performance, feed efficiency of body and economic indices of experimental diets of juvenilecommon carp (cyprinus carpio). during the experiment 270 juvenile fish with an average initialweight of 16.24 ± 0.10g were randomly distributed in 18 well aerated cylindrical polyethylene tanks(15 ...
Atrazine, a herbicide is one the most toxic and sustaining pollutants in aquatic environment. It is detectable in surface water and in underground sources of drinking water. Many studies indicate that atrazine might be a potent endocrine disrupting xenobiotic. There are limited studies have revealed that the effects of atrazine on sex steroids hormones, vitellogenin and induction of aromatase, ...
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