larval rearing of the white leg shrimp Penaeus vannamei and the first culture laboratory in Iraq, Basrah

نویسندگان

چکیده

In the study we cultured shrimp L. vannamei (initial weight 0.0004 g) under laboratory conditions in marine science center and using three types of food. These were life food (Artemia nauplii), artificial died mixed nauplii died). The highest average achieved when feeding on feed (1.210 g), while, lower values fed diets 0.220 g. There are significant differences (P<0.05) between these types. A similar results obtained for growth terms length, length larvae after six weeks was (36.58 mm ), comparing with Artemia 31.11 18.72 respectively, there difference significantly too (P < 0.05) increment recorded during sixth week it 0.55 g, compared 0.23g 0.12 g respectively. higher survival rates calculated treatments, high 90.58 %, diet 85.62% 73.24 %

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Effect of different levels of dietary protein and water salinity on antioxidant enzymes of white leg shrimp (Penaeus vannamei) juveniles

In this study, effect of different levels of dietary protein (25, 35 and 45 per cent) and water salinity (0-3, 12-15 and 32-35 ppt) on antioxidant enzymes of white leg shrimp (Penaeus vannamei) was studied. 324 P.vannamei (with mean weight±SE: 5.55 ± 0.18 gr) were randomly distributed in twenty seven tanks. Experimental shrimps were fed by formulated diets for 56 days and at the end of the expe...

متن کامل

Prevalence and intensity of protozoan ectoparasite of the white leg shrimp (penaeus indicus) in Helleh site, South of Iran

Development of shrimp farming has been associated with the incidence of fatal diseases including viral, bacterial and protozoan parasites of shrimp. Our study was aimed to present an status of several important protozoan parasites of F. indicus in cultured earthen ponds in Iran during the period of 2011 to 2012. One hundred live shrimp  were randomly prepared from the Shrimp Helleh Station in s...

متن کامل

cDNA cloning of the lysozyme of the white shrimp Penaeus vannamei.

Lysozyme, an antibacterial protein, has been implicated in innate immunity in invertebrates, but its activity in shrimp remained to be determined. We cloned the white shrimp lysozyme cDNA using a PCR strategy and detected its activity in haemocytes using a lytic-zone assay against Micrococcus luteus. The cloning was based on a reported EST (dbEST BE18831). The deduced amino acid sequence result...

متن کامل

Spatial expression of the molt-inhibiting horrnone- like gene in the white shrimp Penaeus vannamei

Four IGFBPs have been visualized in striped bass serum. Three appear to be comparable to IGFBP1, -2 and -3 in mammals in terms of their similar molecular weights and regulation by hormones and metabolic status. The fourth (striped bass (sb) IGFBP-4, MW 85-90 kDa) is seen only in adult fish, and has no known mammalian counterpart. Other higher molecular weight bands were also observed, which may...

متن کامل

efl students gender and socioeconomic status: the use of politeness strategies in the first and second languages

within the components of communicative competence, a special emphasis is put on the “rules of politeness,” specifically the politeness strategies (brown and levinson, 1978) that speakers deploy when performing the request speech act. this is because the degree of imposition that making a request places upon one’s interlocutor(s) has been seen to be influenced by several factors among which, as ...

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Al-ma?alla? al-?ir?qiyya? li-l-istizr?? al-m??h?

سال: 2022

ISSN: ['1812-237X']

DOI: https://doi.org/10.58629/ijaq.v11i2.185