Ahmad Bitaraf

Agriculture and Natural Resources Research ‍Center of Yazd Province · Animal Science Department

Reproductive Biology of Nile Tilapia, Oreochromis niloticus under the Brackish Water Culture Condition Nassrin Mashaii*, Farhad Rajabipour, Ahmad Bitaraf, Homayun Hosseinzadeh, Mostafa Sharif Ro�hani, Habib Sarsangi, Mohamad Mohammadi National Research Center of Saline Water Aquatics, Iranian Fisheries Science Research Institute, Agricultural Resea...

An experiment was conducted to show the effects of different levels of pennyroyal, thyme and savory essential oils dietary supplementation on performance, organs weight, intestinal morphology, and serum lipids in quails. A total of 550 day-old Japanese quail chicks were allocated into 11 dietary treatments of 5 replications (10 birds in each cage)...

Nile tilapia Oreochromis niloticus were held at a water salinity of 11.5 ppt, a temperature of 27 ± 0.5°C, pH of 7.6–8.1, 100% of oxygen saturation, and 18:6 (L:D) 2,500 lux light regimen. Fish were fed a 40% protein food. A total of 78% of spawns were by brooders of 21.5–31 cm and 165–495 g. Absolute fecundity varied between 50 and 2,600 (mean 853...

Nile tilapia (Oreochromis niloticus) is important as a newly introduced species to inland aquaculture industry of Iran. Feed is the most important economic factor, and protein, the most expensive ingradient represents more than 50% of expenses was investigated. All male Nile tilapia (180) with initial weight 13.85±1.01 g divided randomly in 12 tank...

Iran is the number one producer of cultured coldwater fish in Asia since 2005. Rainbow trout, (Oncorhynchus mykiss) is the most common and important fish produced by Iranian fisheries. There is not enough information about carcass composition of cultured fish in Iran. Rainbow trout muscle samples were collected from six fish farms of Yazd province...

An experiment was conducted to evaluate the possibility of adaptation, growth and survival of Nile tilapia (Oreochromis niloticus) with 0.3g initial weight and red tilapia (Oreochromis sp.) with 0.7g initial weight in underground brackish water. Fry of Nile tilapia and red tilapia imported from Indonesia and after passing larviculture (25g) were ex...

An experiment was conducted to evaluate the possibility of adaptation, growth and survival of Nile tilapia (Oreochromis niloticus) with 0.3g initial weight and red tilapia (Oreochromis sp.) with 0.7g initial weight in underground brackish water. Fry of Nile tilapia and red tilapia imported from Indonesia and after passing larviculture (25g) were ex...

This study was aimed to investigate the effect of four levels of feeding, i.e., ad libitum to satiation, standard feeding, 10% less and 10% more than that of standard feeding on growth, size, feed conversion rate (FCR) and carcass quality of rainbow trout, Oncorhynchus mykiss, with three replicates under the condition of brackish water (salinity 8....

Broodfish were reared for 6 months in underground brackish water (11 ppt), and the quality of eggs and semen was evaluated in comparison to broodfish held in fresh water. Fry produced by the broodfish in brackish water (S) and freshwater (F) were then reared in different salinities (1, 4, 7, and 10 ppt). Broodfish successfully matured and spawned i...

Iran has the first rate of coldwater fish culture in Asia since 2005. Rainbow trout, Oncorhynchus mykiss is the main and the first fish in fisheries production of Iran. However, there is a few information about carcass composition of cultured fish in Iran. Rainbow trout samples were collected from six fish fresh and brackish water fish farms of Yaz...

In this study, two experiments were conducted to investigate the effects of eyestalk ablation and temperature on molting and mortality of narrow-clawed crayfish (Astacus leptodactylus) in three replicates. In experiment 1, the percentage of molting in ablated crayfish was significantly higher than the percentage of non-ablated crayfish in control g...

The objective of this study was to evaluate three methods of estrous synchronization, viz. controlled internal drug releasing device (CIDR), intravaginal sponges impregnated with fluogestone acetate (FGA), and cloprostenol (Estrumate; an analogue of prostaglandin F-2 alpha) in Nadooshani goats of Yazd province, Iran. The estrous synchronized does (...