نتایج جستجو برای: fish farmers

تعداد نتایج: 137205  

Journal: :Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria 2016
Gabriela Tomas Jerônimo Santiago Benites de Pádua Arlene Sobrinho Ventura Eduardo Luis Tavares Gonçalves Márcia Mayumi Ishikawa Maurício Laterça Martins

This study evaluated the parasite fauna of farmed hybrid surubim (Pseudoplatystoma reticulatum x P. corruscans) and the host-parasite-environment relationship in two fish farms located in Mato Grosso do Sul, Central Brazil, South America. A total of 120 hybrids from two different farms, 60 in each season (30 in the hot and 30 in cold season) were examined during a year. Water quality was weekly...

Although carp is still widely sold and used in its fresh form, a range of value additions may also be observed. It is essential to know the development and management of a carp farm production costs and their evolution. In Iran, warm-water fish farming is based on common, silver, grass, and bighead carps. The carp is easy to rise in hatcheries in very large numbers at little cost, and is distri...

2014
Clara Boglione Domitilla Pulcini Michele Scardi Elisa Palamara Tommaso Russo Stefano Cataudella

The incidence of skeletal anomalies could be used as an indicator of the "quality" of rearing conditions as these anomalies are thought to result from the inability of homeostatic mechanisms to compensate for environmentally-induced stress and/or altered genetic factors. Identification of rearing conditions that lower the rate of anomalies can be an important step toward profitable aquaculture ...

2013
Sujata A. Sirsat Jack A. Neal

Aquaponics is an effective method to practice sustainable agriculture and is gaining popularity in the US; however, the microbial safety of aquaponically grown produce needs to be ascertained. Aquaponics is a unique marriage of fish production and soil-free produce (e.g., leafy greens) production. Fish are raised in fresh water tanks that are connected to water filled beds where fruits and vege...

2012
Uma Khumairoh Jeroen CJ Groot Egbert A Lantinga

Attempts to increase food crop yields by intensifying agricultural systems using high inputs of nonrenewable resources and chemicals frequently lead to de-gradation of natural resources, whereas most technological innovations are not accessible for smallholders that represent the majority of farmers world wide. Alternatively, cocultures consisting of assemblages of plant and animal species can ...

2012
K. R. Sumi

A 4-week long feeding experiment was conducted to evaluate the effect of different protein levels of quality Tilapia (O. niloticus) fry production in Agro-3 Fish Hatchery and Culture Farm, Boilor, Trishal, Mymensingh. Four days old 1247 fry (length 0.8 cm and weight 0.012 g) were stocked at the density of 1560/m in twelve synthetic hapas. Four different treatments (T1, T2, T3 and T4) in three r...

Journal: :International microbiology : the official journal of the Spanish Society for Microbiology 2002
Jesús L Romalde

Pasteurellosis, or pseudotuberculosis, is a bacterial septicaemia caused by the halophilic bacterium Photobacterium damselae subsp. piscicida (formerly Pasteurella piscicida). Although this disease was first described in wild populations of white perch and striped bass, currently the natural hosts of the pathogen are a wide variety of marine fish. The disease has great economic impact both in J...

2017
Shaohui Liu Wenjun Jiao Qingwen Min Jianzhong Yin

With the mobility and off-farm employment of rural villagers, agricultural production has been influenced by the absence of labor force in the past few years. In particular, the inadequate assignment of resources has threatened the sustainability of some Globally Important Agricultural Heritage Systems due to their low profit. In this paper, the influences of labor force and capital on agricult...

Although carp is still widely sold and used in its fresh form, a range of value additions may also be observed. It is essential to know the development and management of a carp farm production costs and their evolution. In Iran, warm-water fish farming is based on common, silver, grass, and bighead carps. The carp is easy to rise in hatcheries in very large numbers at little cost, and is distri...

ژورنال: توسعه آبزی پروری 2020

This research was carried out with the aim of analyzing the training needs of trout breeders in Arak city. The statistical population of this study was trout breeders in Markazi province, Arak city (N = 70). Sampling was done using simple random sampling method. Sixty trout farmers were selected in Arak city. The research instrument was a questionnaire which verified its reliability and validit...

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