Search results for "rearing"

Quantity and Quality of Aquaculture Enrichments Influence Disease Epidemics and Provide Ecological Alternatives to Antibiotics

2021

Environmental heterogeneity is a central component influencing the virulence and epidemiology of infectious diseases. The number and distribution of susceptible hosts determines disease transmission opportunities, shifting the epidemiological threshold between the spread and fadeout of a disease. Similarly, the presence and diversity of other hosts, pathogens and environmental microbes, may inhibit or accelerate an epidemic. This has important applied implications in farming environments, where high numbers of susceptible hosts are maintained in conditions of minimal environmental heterogeneity. We investigated how the quantity and quality of aquaculture enrichments (few vs. many stones

Near infrared reflectance spectroscopy (NIRS) characterization of European sea bass (Dicentrarchus labrax) from different rearing systems

2009

The present study aimed to predict by NIRS the proximate chemical composition and some carcass traits of sea bass coming from 11 farms with different rearing systems (extensive, intensive in land-based basins, sea cages) and located in northern (Friuli, Veneto), central (Tuscany) and southern (Puglia and Sicily) Italy. NIRS analysis of freeze dried sea bass fillets gave fairly good predictions of slaughter weight and fillet yield (R2cv=0.48-0.55), while results for carcass yield were poor. NIRS analysis was highly predictive for the condition factor (R2cv=0.790, SECV=0.09) and for water, ether extract and gross energy showing high correlations (R2cv>0.90) with NIR spectral infor- mation and…

The body size of headstarted and wild juvenile European pond turtles (Emys orbicularis)

2018

Headstarting is a popular conservation technique in which animals are raised under artificial conditions, and then released into natural habitat. The objective of this procedure is to grow animals to a size at which they are less vulnerable to predators. However, there is still little empirical evidence for the long-term effectiveness of the technique. Therefore, we compared body size of juvenile “wild” (= not taken to artificial rearing) and headstarted European pond turtles (Emys orbicularis), from two populations (in central and western Poland). Immediately after hatching there were no differences in size of the turtles, but after seven-ten years headstarted turtles were smaller. This so…

Playing games in the cultural transformations in the second half of the twentieth century

2013

Rozwój i wychowanie ucznia czy realizacja programu - poszukiwanie nowych rozwiązań w edukacji jutra

2013

Wychowanie do wartości dzieci w wieku wczesnoszkolnym

2018

Values are the fundamental determiner behind human endeavours and motivations. Therefore, they constitute a significant element of social life. There exists a close relation between values and rearing and aims of school education. While bringing up a child, formation of its world of values makes the superior goal. The author discusses the issue of forming proper values in children of the early-school age

ADHD in the context of Finnish basic education

2014

Students with Attention Deficit/Hyperactivity Disorder (ADHD) are a growing group served under special education services in many western societies. This article describes the history and current state of the services, as well as the assessment procedure. Our conclusion is that the status of students with ADHD in Finnish basic education (Grades 1 to 9) is still unclear. Based on the comparison of the prevalence and the population served in special education we can assume that this group is probably underserved in the Finnish school system. We also present findings from two recent studies among families with ADHD children in Finland. Family viewpoint can contribute to our knowledge and under…

Assessing Stress Resilience After Smolt Transportation by Waterborne Cortisol and Feeding Behavior in a Commercial Atlantic Salmon (Salmo salar) Grow…

2022

Sampling protocols and water quality sensors have been developed to assess fish health and welfare in recirculating aquaculture systems (RASs). Still, the use of fish-based non-invasive welfare indicators, reflecting the physiological state of the fish, is limited in this type of system. Cortisol, the major stress-coping hormone in fish, diffuses through the gills. Consequently, waterborne cortisol is a potential fish-based non-invasive welfare indicator in RAS. However, its use in commercial rearing systems is sparse. In this study, we evaluated water cortisol levels and feeding behavior as welfare indicators of newly inserted smolt in a commercial RAS for harvest size Atlantic salmon. The…

The Body Size of Headstarted and Wild Juvenile European Pond Turtles (<i>Emys orbicularis</i>)

2017

Headstarting is a popular conservation technique in which animals are raised under artificial conditions, and then released into natural habitat. The objective of this procedure is to grow animals to a size at which they are less vulnerable to predators. However, there is still little empirical evidence for the long-term effectiveness of the technique. Therefore, we compared body size of juvenile «wild» (= not taken to artificial rearing) and headstarted European pond turtles ( Emys orbicularis ), from two populations (in central and western Poland). Immediately after hatching there were no differences in size of the turtles, but after seven-ten years headstarted turtles were smaller. This …

Vecāku iejūtība pret sevi un priekšstati par bērnu audzināšanas pieejām

2019

Pētījuma mērķis bija noskaidrot, vai pastāv saistība starp vēcāku iejūtību pret sevi un priekšstatiem par bērnu audzināšanas pieejām. Pētījumā piedalījās 203 respondenti (vidējais vecums 38,7 gadi), kuriem bija vismaz viens bērns vecumā līdz 16 gadiem. Respondenti aizpildīja internetā anketu, kas sastāvēja no Iejūtības pret sevi skalas (Self-Compassion Scale (SCS), Neff, 2003, Latvijā adaptējusi Tamsone, 2015) un Bērnu audzināšanas pieeju aptaujas (Block’s Child Rearing Practises Report (CRPR), 1984; Latvijā adaptējusi Sebre, 2009). Iejūtības pret sevi skala mēra, kāda ir indivīda attieksme pret sevi grūtās situācijās. Ar Bērnu audzināšanas pieeju aptauja sastāv no trīs apakšskalām un tās p…