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ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57

Selection by higher‐order effects of salinity and bacteria on early life‐stages of Western Baltic spring‐spawning herring

Abstract Habitat stratification by abiotic and biotic factors initiates divergence of populations and leads to ecological speciation. In contrast to fully marine waters, the Baltic Sea is stratified by a salinity gradient that strongly affects fish physiology, distribution, diversity and virulence ...

HqiA, a novel quorum-quenching enzyme which expands the AHL lactonase family

The screening of a metagenomic library of 250,000 clones generated from a hypersaline soil (Spain) allowed us to identify a single positive clone which confers the ability to degrade N-acyl homoserine lactones (AHLs). The sequencing of the fosmid revealed a 42,318 bp environmental insert characterized ...

Heat Stress in Dairy Cattle Alters Lipid Composition of Milk

Heat stress, potentially affecting both the health of animals and the yield and composition of milk, occurs frequently in tropical, sub-tropical and temperate regions. A simulated acute heat stress experiment was conducted in controlled-climate chambers and milk samples collected before, during and ...

Distribution and establishment of the alien Australian redclaw crayfish, Cherax quadricarinatus, in South Africa and Swaziland

Background The Australian redclaw crayfish (Cherax quadricarinatus, von Martens), is native to Australasia, but has been widely translocated around the world due to aquaculture and aquarium trade. Mostly as a result of escape from aquaculture facilities, this species has established extralimital populations ...

Assessment ecological risk of heavy metal caused by high-intensity land reclamation in Bohai Bay, China

The article examines the detailed spatial and temporal distributions of coastal reclamation in the northwest coast of Bohai Bay experiencing rapid coastal reclamation in China from 1974 to 2010 in annual intervals. Moreover, soil elements properties and spatial distribution in reclaimed area and inform ...

Inbreeding and selection shape genomic diversity in captive populations: Implications for the conservation of endangered species

Captive breeding programs are often initiated to prevent species extinction until reintroduction into the wild can occur. However, the evolution of captive populations via inbreeding, drift, and selection can impair fitness, compromising reintroduction programs. To better understand the evolutionary ...

High resolution microscopy reveals significant impacts of ocean acidification and warming on larval shell development in Laternula elliptica

Environmental stressors impact marine larval growth rates, quality and sizes. Larvae of the Antarctic bivalve, Laternula elliptica, were raised to the D-larvae stage under temperature and pH conditions representing ambient and end of century projections (-1.6°C to +0.4°C and pH 7.98 to 7.65). Previous ...

Use of multi-trait and random regression models to identify genetic variation in tolerance to porcine reproductive and respiratory syndrome virus

Background A host can adopt two response strategies to infection: resistance (reduce pathogen load) and tolerance (minimize impact of infection on performance). Both strategies may be under genetic control and could thus be targeted for genetic improvement. Although there is evidence that supports ...

Construction of a high-density linkage map and fine mapping of QTLs for growth and gonad related traits in blunt snout bream

High-density genetic maps based on SNPs are essential for fine mapping loci controlling specific traits for fish species. Using restriction-site associated DNA tag sequencing (RAD-Seq) technology, we identified 42,784 SNPs evenly distributed across the Megalobrama amblycephala genome. Based on 2 parents ...

Comparative Genomics and Transcriptional Analysis of Flavobacterium columnare Strain ATCC 49512

Flavobacterium columnare is a Gram-negative fish pathogen causing columnaris disease in wild and cultured fish species. Although the pathogen is widespread in aquatic environments and fish worldwide, little is known about biology of F. columnare and mechanisms of columnaris disease pathogenesis. Previously ...

Method for packing fish product, fish product package

A method for packing a fish product (39), and a fish product package. The method comprises packing the fish product (39) in a vacuum package, arranging in said vacuum package an empty space (43), forming in the vacuum package by means of empty space (43) an underpressure, and maintaining the empty space ...

Material for inhibiting degradation in freshness of myoglobin-containing food, and use of same

An object of the present invention is to provide a simple measure which can suppress freshness deterioration of a myoglobin-containing food. The present invention relates to a myoglobin-containing food freshness deterioration suppressing material for suppressing freshness deterioration of a myoglobin-containing ...

Apparatus and system for recovery of meal

The present invention relates to a process for continuous manufacture or recovery of meal and oil from organic material. More specifically the present invention relates to a device and a method for regulating the energy usage and distribution of energy within the system for maintaining continuous production ...

Mass containing functional compound and viscosity regulator

The invention relates to a functional compound-comprising mass, as well as to a method for the manufacture and use of such a mass. The invention relates also to a method for manufacturing a functional compound-comprising product, as well as to the use of such a product. The mass according to the invention ...

Equipment and method for batch-wise discharge of fish

Device and method for portion-wise discharge of fish from a storage tank (11) or the like. The device comprises a discharge conduit (12) from the storage tank (11), a curved section (13) of the discharge conduit (12) being pivotally journaled between an inner swivel joint (14a) and an outer swivel joint ...

System and method for inhibiting parasites to infest and attach to aquatic animals

A system (50A, 50B) and method for inhibiting one or more parasites to infest and/or attach to one or more aquatic animals (30) includes an acoustic arrangement (100, 110, 120) for generating an acoustic image in a vicinity of the acoustic arrangement within an aquatic environment (10) accommodating ...

Methods for improving fillet quality in farmed fish

The present invention provides methods for improving flesh quality in farmed fish, and in particular decreasing gaping in fillets from farmed fish as well as increasing flesh and fillet firmness.

A method for trichothecene detoxification

The present document is directed to detoxification of trichothecenes using a method involving trichothecene epoxide ring opening. In particular, the present document discloses the detoxification of a trichothecene by reaction with a thiol containing compound under conditions where the pH is equal to ...

Mitigation of anti-nutritional substances in plant meal

Improved meals, improved meal compositions, and improved aquaculture feed compositions are provided based on plant meal, wherein anti-nutritional effects of one or more anti-nutritional substances (ANS) are mitigated. Also provided are methods for making and using the improved meals, improved meal compositions, ...

Designing medical internships to improve recruitment and retention of doctors in rural areas

ABSTRACT Background: The medical internship as a way of exposing young doctors to training in a rural context is regarded as a useful tool to recruit and retain doctors in rural areas. Norwegian health authorities tested an arrangement of early sign-up for medical internships in the Finnmark County ...

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- pagina: 810
di: 1926

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