scholarly journals NUTRITIONAL VALUE OF TWOYEARLING CARP OF DIFFERENT CROSS-BREEDS

2018 ◽  
Vol 56 (3) ◽  
pp. 346-356
Author(s):  
Ya. I. Sheiko ◽  
Yu. M. Rudy ◽  
S. V. Kralko
Keyword(s):  
Nutritional Value ◽  
Practical Importance ◽  
Relative Weight ◽  
Fourth Generation ◽  
Body Parts ◽  
Commercial Fish ◽  
Main Indicator ◽  
Breed Crosses ◽  
Edible Parts ◽  
Population Yield

One of the important fields of carp breeding work is improvement of the commercial traits of created carp breeds or cross-breed commercial crosses. The main indicator determining the value of commercial fish is edible carcass yield depending on the interior (relative weight of carcass edible parts) and the exterior (high spin, ratios of head and body girth, type of scale) indices. The paper presents the results of researches on interior indicators (body parts ratio) of twoyearlings of two-breed crosses obtained from crossing of adapted fourth generation imported breeds grown in Belarus with carp lines of Belarusian selection. The edible part of carcass size varied from 60.7 % (three prim x fresinet) to 66.7% (GermançLahvinsk scaly), averaging 64.0 % in the two-breed crosses studied. Compared with the average population yield of carcass in twobreed crosses, statistically significant advantages were determined in combinations of crossing with German carp. In this regard, quite high indicators were also observed in combinations with the Yugoslav carp, where it was used as the maternal component of crosses, and in combinations obtained from crossing the Mirror Isobelin carp with a Butterfly breed. Based on comprehensive assessment of interior indicators, a number of crosses have been determined with increased nutritional value of carcasses, among which the maximum nutritional value was shown by the cross Germançthree prim. The obtained data are of practical importance for creation of industrial hybrids with attractive commercial traits.

scholarly journals Proximate Composition and Its Seasonality of the Mediterranean Green Crab:Carcinus aestuariiNardo, 1847 (Brachyura, Portunidae), in Southern Tunisian Waters (Central Mediterranean)

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Sonia Baklouti ◽  
Abdelkarim Derbali ◽  
Khalifa Dhieb ◽  
Wassim Kammoun ◽  
Othman Jarboui
Keyword(s):  
Proximate Composition ◽  
Nutritional Value ◽  
Central Mediterranean ◽  
Potential Health ◽  
Lipid Contents ◽  
Size Groups ◽  
The Mediterranean ◽  
And Gender ◽  
Edible Parts

The Mediterranean green crabCarcinus aestuariiwas recorded in Tunisian waters several years ago. However, since its record in the Gulf of Gabes, no studies have been carried out about the spread of this crab. Because there is a lack of nutritional information concerning this species, this study aimed to characterize the chemical composition of hepatopancreas and gonads ofCarcinus aestuariiin view of potential health implication for consumers and to determine the seasonal nutritional quality of females and males taken separately for various size groups. In this study, a total of 1399 individuals were collected along the Sfax coast. The nutritional value of various edible parts ofCarcinus aestuariiwas evaluated, and gender differences in terms of edible yield and proximate composition, protein, mineral, lipid, and water content, were compared for season, age, and sex. The biochemical compositions were strongly influenced by sex, age, and seasons. The highest protein and lipid contents were detected in gonads and hepatopancreas of females. Autumn was the season with the highest protein content and lowest fat content. Therefore, people with particular diets constrains should consume the ovaries of females in autumn and it should moderate in winter. The hepatopancreas and gonads from Tunisian waters can be a good source of proteins and mineral.

Collective prey capture and feeding behaviours of Anelosimus jabaquara Levi 1956 (araneae: theridiidae)

Behaviour ◽  
2002 ◽  
Vol 139 (5) ◽  
pp. 573-584 ◽  
Author(s):  
Marcelo de Oliveira Gonzaga ◽  
João Vasconcellos-Neto
Keyword(s):  
Nutritional Value ◽  
Central Body ◽  
Prey Capture ◽  
Body Part ◽  
Medium Size ◽  
Body Parts ◽  
Predatory Behaviour ◽  
Body Segments ◽  
Body Sizes ◽  
Biomass Availability

AbstractIn this study we report on the predatory behaviour of Anelosimus jabaquara considering the frequency of bites in each prey body part during the immobilization phase, the proportion of the consumption time expended in each of these parts and the relative participation on capture and feeding processes by spiders of different body sizes. Generally, few individuals actively take part in prey immobilization events, biting mostly on fly's legs (body segments which promote vibrations strong enough to attract spiders, but not to dissuade attacks). However, many spiders usually take part in the consumption of this medium size prey item. During the consumption phase appendages were rarely used, probably due to the higher nutritional value and biomass availability of central body segments (thorax, abdomen and head). Non-aggressive contests over displaced prey body parts were frequently seen during collective feeding in natural colonies, but not in small artificial groups in laboratory.

scholarly journals The Diversity of the Genus Diplotaxis and the Spreading of the Species

2012 ◽  
Vol 69 (2) ◽  
Author(s):  
Simona Laura LAZAR ◽  
Doru PAMFIL ◽  
Marin ARDELEAN ◽  
Mirela Irina CORDEA
Keyword(s):  
Mediterranean Basin ◽  
Nutritional Value ◽  
Crop Wild Relatives ◽  
Wild Relatives ◽  
Fourth Generation ◽  
Human Consumption ◽  
Underutilized Crops ◽  
Wild Rocket ◽  
Degree Of Heterogeneity ◽  
The Mediterranean Basin

The neglected and underutilized crops are more and more advertised due to the recognition of their nutritional value. Some of these species are used as crop wild relatives in plant breeding, for the infusion of useful characters in the commercial varieties and others are used as fourth generation vegetables. Different scientific reports on their chemical composition and the benefic effect on the human health to the conclusion that the wild rocket is a desirable vegetable. This is the case of the genus Diplotaxis , with its 31 species showing a wide degree of heterogeneity in the morphology, chromosome number and geographical distribution of these species. The accessions within the genus Diplotaxis  are investigated worldwide especially D. tenuifolia and D. muralis , because there is an increasing interest in them due to the fact that they are picked or cultivated for human consumption. The origin of the genus Diplotaxis is considered the Mediterranean Basin and the Middle East but its area of spreading is very wide. It was observed that the only areas that have not entered this very adaptable species are arctic and subarctic areas and East Asia. Although the species are so cosmopolitan, it is important to keep their diversity especially in the original places such as Romania for D. tenuifolia and D. muralis.

Selenium fortification of hydroponically grown corn salad (Valerianella locusta)

2015 ◽  
Vol 66 (11) ◽  
pp. 1128 ◽  
Author(s):  
Nicola Tomasi ◽  
Roberto Pinton ◽  
Stefano Gottardi ◽  
Tanja Mimmo ◽  
Matteo Scampicchio ◽  
...  
Keyword(s):  
Amino Acids ◽  
Nutritional Value ◽  
Narrow Range ◽  
Essential Element ◽  
Leafy Vegetables ◽  
Nitrate Content ◽  
Protein Thiols ◽  
Pigment Contents ◽  
Hydroponically Grown ◽  
Edible Parts

There is increasing interest in the hydroponic technology to produce leafy vegetables for ready-to-eat salads. Optimisation of the growing system can lead to higher yield and/or improved nutritional value of the product. Selenium (Se) is an essential element for animal and humans, with quite a narrow range between deficiency and toxicity, whereas it is assumed beneficial for plants. In the present study, two cultivars (Gala and Baron) of corn salad (Valerianella locusta (L.) Laterr.) were used to test the possibility to increase Se content in the edible parts (leaves). Effects on yield, nitrate content, and accumulation of sulfur (S) and S-containing amino acids and Se and Se-containing amino acids were studied. Results showed that corn salad tolerates selenate (Na2SeO4) concentrations ranging from 10 to 40 µm in the nutrient solution, with plants accumulating Se at levels compatible with the need in human diets at 10 µm selenate. Se-treated plants showed some benefits with respect to a decrease of nitrate concentration and increase of pigment contents (chlorophylls and carotenoids). At 10 µm selenate, Se-cysteine and Se-methionine were produced, without affecting non-protein thiols or cysteine and methionine contents. At the higher Se supply, sulfate accumulated in the leaves with a parallel decrease in the amount of S-amino acids and a rise in the relative amount of Se-amino acids. Based on the chemical analyses, cv. Gala showed better tolerance than cv. Baron to moderate selenate supply (40 µm).

Protein Nutritive Quality of Commercial Fish Meals as Assessed by Biological and Chemical Methods

1966 ◽  
Vol 23 (3) ◽  
pp. 395-414 ◽  
Author(s):  
B. E. March ◽  
Jacob Biely ◽  
C. Goudie ◽  
H. L. A. Tarr
Keyword(s):  
Protein Quality ◽  
Practical Importance ◽  
Single Amino Acid ◽  
Commercial Fish ◽  
Biological Assays ◽  
Nutritive Quality ◽  
Biological Tests ◽  
Available Lysine ◽  
Chloroform Methanol

Various chemical characteristics of fish meals pertaining to the protein and lipid components were determined and their relation to different biological estimates of protein quality were studied. The results demonstrated the practical importance of selecting appropriate biological assays in order to avoid underestimating or overestimating protein quality. Pepsin digestibility of the crude protein remaining in the meals after chloroform–methanol extraction was significantly correlated with biological estimates of protein quality. Meals of initially high supplementary protein value declined in value to a greater extent than did meals of lower quality. The level of available lysine present in the meals declined with storage but biological tests indicated that a combination of several amino acids rather than any single amino acid was limiting to supplementary protein value.

scholarly journals EVALUATION OF THE NUMBER OF EARLY YOUNG FISH ON COASTAL SPAWNING GROUNDS OF THE MESHINSKY GULF OF THE KUYBYSHEVSKY WATER RESERVOIR

2018 ◽  
pp. 33-40
Author(s):  
Yuri Aleksandrovich Severov ◽  
Firdauz Mubarakovna Shakirova ◽  
Vladimir Vyacheslavovich Kuznetsov ◽  
Vyacheslav Alekseevich Kuznetsov
Keyword(s):  
Fish Larvae ◽  
Practical Importance ◽  
Coastal Region ◽  
Calculated Data ◽  
Water Reservoir ◽  
Mean Value ◽  
Kuibyshev Reservoir ◽  
Commercial Fish ◽  
Study Results ◽  
The Mean

The results of six-year observations (2012-2017) in the Meshinsky Gulf of the Kuibyshev reservoir concerning the evaluation of the reproduction efficiency of the main commercial fish of this section of the reservoir have been reviewed and analyzed. Data are given on the species composition of prolarvae and larvae of fish in the coastal part of the reservoir. It has been established that the most abundant in the studied years was the fry of roach, bream and silver bream; the larvae of carp and ruff were least common in catches. A method for estimating yields by catches of fish larvae based on deviations in the mean value of the catch has been proposed. According to these data, in 2012-2017 there was one high-yielding generation, in the remaining years - medium-yielding. It is shown that the dynamics of the number of fish larvae in the coastal region depends on the course of spawning and obeys the normal distribution in time. Analysis of the relative indices of the quantity of larvae - pieces/catches and pieces/1m of the coastal area in the studied years has been given. A method is described for calculating the absolute abundance of fish larvae in the littoral by the example of the Meshinsky Gulf. According to calculated data, the average number of early juveniles in the littoral of the Meshinsky Gulf in 2012-2017 was about 4 billion specimens, which corresponds to the figures obtained in previous years in the Sviyazhsky Gulf of the Kuibyshev Reservoir. The study results have great practical importance and can serve as data for prediction of catches and determining the state of ecological system of the reservoir.

scholarly journals Spinal cord injury affects the interplay between visual and sensorimotor representations of the body

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Silvio Ionta ◽  
Michael Villiger ◽  
Catherine R Jutzeler ◽  
Patrick Freund ◽  
Armin Curt ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Relative Weight ◽  
Body Representation ◽  
The Body ◽  
Lower Limbs ◽  
Whole Body ◽  
Body Parts ◽  
Postural Changes ◽  
Cord Injury

Abstract The brain integrates multiple sensory inputs, including somatosensory and visual inputs, to produce a representation of the body. Spinal cord injury (SCI) interrupts the communication between brain and body and the effects of this deafferentation on body representation are poorly understood. We investigated whether the relative weight of somatosensory and visual frames of reference for body representation is altered in individuals with incomplete or complete SCI (affecting lower limbs’ somatosensation), with respect to controls. To study the influence of afferent somatosensory information on body representation, participants verbally judged the laterality of rotated images of feet, hands and whole-bodies (mental rotation task) in two different postures (participants’ body parts were hidden from view). We found that (i) complete SCI disrupts the influence of postural changes on the representation of the deafferented body parts (feet, but not hands) and (ii) regardless of posture, whole-body representation progressively deteriorates proportionally to SCI completeness. These results demonstrate that the cortical representation of the body is dynamic, responsive and adaptable to contingent conditions, in that the role of somatosensation is altered and partially compensated with a change in the relative weight of somatosensory versus visual bodily representations.

scholarly journals Nutritional value of the visceral mass of three giant African land snail species ( and )

2020 ◽  
Vol 44 (4) ◽  
pp. 133-138
Author(s):  
K. O. Ademolu ◽  
D. E. Onadeko ◽  
F. M. Mselbwala ◽  
A. Oropo
Keyword(s):  
Nutritional Value ◽  
Land Snail ◽  
Economic Benefits ◽  
Snail Species ◽  
Visceral Mass ◽  
Hermaphroditic Duct ◽  
Food And Feed ◽  
Nutritional Benefits ◽  
Edible Parts ◽  
Carbohydrate Contents

Edible snails are very important as food and adequate information is available on their nutritional, medicinal, and economic benefits. Though themore commonly consumed portion is the flesh, some people however consume the visceral mass, hence the need to determine its nutritional benefits. Two structures of the visceral mass (albumen gland and common hermaphrodite duct) of Archachatina marginata, Achatina achatina and Achatina fulica were analyzed to determine their proximate, mineral, and antinutrient  compositions.The albumen glands in the three snail species had higher protein (36.81±0.02% -42.69±0.02%) and carbohydrate contents (0.62±0.01% - 0.72±0.02%) than hermaphroditic duct, while the hermaphroditic ducts had the higher moisture content (78.46±0.02 ±0.01% - 80.55±0.01%). A margin at a had the highest total nutrients value and the highest total anti-nutrients value;A. achatina had the lowest total nutrients value and A. fulica had the lowest total ant-nutrients value. This study showed that the edible parts of the visceral mass are nutritious and suitable to be used as food and feed.

Sign in / Sign up

Export Citation Format

Share Document