Results 101 to 110 of about 50,724 (283)

Investigation of the effect of water and feed sourced boron on the growth performance and blood parameters of Nile tilapia, Oreochromis niloticus

open access: yesJournal of the World Aquaculture Society
This study investigated the effects of water and feed‐derived boron on the growth performance and blood parameters of Nile tilapia fingerlings. Two different experiments were designed for this purpose. The first phase of the study determined the LC50 (96‐
Mustafa Çelik, Suat Dikel, Mustafa Öz
doaj   +1 more source

Screening of protease producing bacteria from the gastrointestinal tract of Nile tilapia (Oreochromis niloticus)

open access: yesInternational Journal of Applied and Experimental Biology
This study was designed to identify and characterize protease-producing bacteria residing in the gastrointestinal tract (GIT) of Nile tilapia (Oreochromis niloticus) that optimizes feed utilization in the aquaculture system.
Rafia Naeem   +12 more
doaj   +1 more source

Efficacy of a Combined Natural Extract of Turmeric (Curcuma longa) and Liquorice (Glycyrrhiza uralensis) Against Viral Haemorrhagic Septicaemia Virus in Olive Flounders (Paralichthys olivaceus)

open access: yesJournal of Fish Diseases, EarlyView.
ABSTRACT Viral haemorrhagic septicaemia virus (VHSV) causes a high mortality rate in cultured olive flounder, and effective treatment for VHSV infection is urgently required. Turmeric (Curcuma longa ) and liquorice (Glycyrrhiza uralensis) are well‐known medicinal plants with a variety of biological activities. Turmeric and liquorice extract combination
Su‐Mi Shin   +5 more
wiley   +1 more source

Perspectives from agriculture: advances in livestock breeding - implications for aquaculture genetics [PDF]

open access: yes, 2006
In this paper we present livestock breeding developments that could be taken into consideration in the genetic improvement of farmed aquaculture species, especially in freshwater fish.
Nguyen, N.H., Ponzoni, R.W.
core  

Therapeutic Efficacy of Monoterpenes in Nile Tilapia Infected With Edwardsiella tarda: A Phytogenic Alternative to Oxytetracycline

open access: yesJournal of Fish Diseases, EarlyView.
ABSTRACT The purpose of this research was to assess the effectiveness of a combination of monoterpenes (thymol and carvacrol) in treating juvenile Nile tilapia (Oreochromis niloticus) infected with Edwardsiella tarda as a potential substitute for the antibiotic oxytetracycline. The study utilised different concentrations of the monoterpenes blend (MTs):
Danilo Vitor Vilhena Batista   +12 more
wiley   +1 more source

The regulators and the regulated: fisheries management, options and dynamics in Kenya's Lake Victoria fishery [PDF]

open access: yes, 1997
The study divides the history of the fishery into five 'regulatory periods': the pre-colonial fishery (pre-1901), the colonial fishery (1901-1963), the post indipendence fishery (1963-1980), the Nile perch 'boom' years (1980-1989), and finally the ...
Geheb, K.
core  

Contribution of Amino Acids in Cereal Grain Products to Precision Feed Formulation for Tambaqui (Colossoma macropomum) Using a Digestibility Approach

open access: yesJournal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Although cereal grain products have low protein content, they can contribute up to 25% of total protein in low‐trophic level/omnivorous fish diets. Thus, understanding the amino acid contribution of these ingredients becomes crucial for meeting the dietary requirements of omnivorous fish.
Danilo C. Proença   +4 more
wiley   +1 more source

Africa: the FBA connection [PDF]

open access: yes, 1986
Since its inception in the 1930's the Freshwater Biological Association at Windermere, England has been involved in research on African lakes and rivers.
Fryer, G., Talling, J.F.
core  

Preference index supported by motivation tests in Nile tilapia

open access: yesPLOS ONE, 2017
The identification of animal preferences is assumed to provide better rearing environments for the animals in question. Preference tests focus on the frequency of approaches or the time an animal spends in proximity to each item of the investigated resource during a multiple-choice trial.
Maia, Caroline Marques   +1 more
openaire   +6 more sources

ZW and XY Sex Chromosomes Drive Rapid and Distinctive Evolution of Sex‐Biased Gene Expression

open access: yesMolecular Ecology, EarlyView.
ABSTRACT Cichlids are a textbook model system of adaptive radiation and a fascinating example of rapid sex chromosome evolution. Yet in these fish, as in most other taxa, the mechanisms causing sex chromosome turnover and the subsequent impact thereof are unknown.
Kevin Hsiung   +2 more
wiley   +1 more source

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