نتایج جستجو برای: fingerling

تعداد نتایج: 284  

Journal: :Asian Journal of Agricultural Extension, Economics and Sociology 2022

This study incorporates the application of a linear programming technique for composition fish feed mixture to minimize cost without sacrificing nutrients levels. Designing best diet fry, fingerling, and growth stages is main goal this study. Regarding nutrient manufacturing costs, study's results show that variety elements can be combined much more effectively than in commercially available fe...

Journal: :The Journal of experimental biology 1980
D G McDonald H Hobe C M Wood

The physiological responses of 1- to 2-year-old rainbow trout to low pH are dependent on the environmental calcium concentration. Trout, maintained for 5 days in moderately hard water ([Ca2+] = 1.6-2.7 m-equiv/l) at a mean pH of 4.3, developed a major blood acidosis but exhibited only a minor depression in plasma ion levels. In acidified soft water ([Ca2+] = 0.3 m-equiv/l), only a minor acidosi...

Journal: :Tạp chí Khoa học và Công nghệ Biển 2015

Journal: :Western Indian Ocean Journal of Marine Science 2023

The intensification of aquaculture has brought about the need to find alternative feed supplement sources reduce production costs. One in fish farming is animal manure. However, use manure may cause health problems cultures. objective this study was determine effects probiotics on Nile tilapia fingerlings subjected microbial challenge using swine Three hundred (300) weighing 2±0.05g and measuri...

Journal: : 2021

The study on the effects of food and rearing density hybrid grouper (♂ E. lanceolatus × ♀ fuscoguttatus) from fry stage to fingerling was conducted at Nha Trang Mariculture Research Development Center (Research Institute for Aquaculture No. 3) March May 2018 assess live fish survival rate, growth in length, level coefficient CVL deformative rate. showed that feeding rotifers were better than oy...

Journal: :The Journal of general virology 1999
W L Gray R J Williams R L Jordan B R Griffin

Channel catfish virus (CCV) disease is an acute haemorrhagic disease in juvenile channel catfish (Ictalurus punctatus). While fish that survive primary CCV infection are suspected of being carriers of CCV, little is known concerning CCV latency. In this report, fingerling catfish were infected with CCV by experimental immersion challenge. Infected fish displayed clinical signs of CCV disease, b...

Journal: :SAARC Journal of Agriculture 2022

Monosex tilapia (Oreochromis niloticus L.) was evaluated in a freshwater pond for 100 days at Gokuleshwor, Baitadi, Nepal during the summer and rainy seasons of 2019. Fingerlings were supplied stocking densities 5, 10, 15, 20 fish per m3. At time stocking, average fingerling weight 8.5 grams. Each treatment had four replicates. treatments involved feeding twice day. The results revealed that sp...

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