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The effects of diet supplemented with Lactobacillus rhamnosus on tissue parameters of rainbow trout,Oncorhynchus mykiss (Walbaum) 下载免费PDF全文
Natalija Topic Popovic Ivancica Strunjak‐Perovic Roberta Sauerborn‐Klobucar Josip Barisic Margita Jadan Snjezana Kazazic Inga Kesner‐Koren Andreja Prevendar Crnic Jelena Suran Blanka Beer Ljubic Vesna Matijatko Rozelindra Coz‐Rakovac 《Aquaculture Research》2017,48(5):2388-2401
This study was carried out to establish the effects of a 6 week treatment with the diet supplemented with L. rhamnosus in concentrations of 107 CFU g?1 (G1 group) and 108 CFU g?1 (G2 group) on the condition expressed by condition factors (Fulton's, Clark's and B), intestinal microbiology, haematological, histological and selected antioxidative parameters of rainbow trout. A significantly higher condition factors were found in G1 group indicating that higher concentration of probiotic (108 CFU g?1) did not result in the better condition. Cholesterol and urea levels were significantly higher in both G1 and G2 groups, albumin in G1 and creatinine in G2 group with respect to control. A significantly higher liver TBARS level was observed in G2 group. The feeding with supplemented probiont apparently changed the resident microbiota. Three weeks after withdrawal of the supplemented feed, the microflora mostly reverted to the control composition, although L. rhamnosus in faecal matter of fish remained inherent. The epithelial structure of the proximal and distal intestine revealed the increased absorptive area in both treated groups, as well as the increase in the mucin‐secreting goblet cells. The L. rhamnosus‐treated groups demonstrated the capacity for the augmentation of the innate host defence. 相似文献
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Dragan Nonic John C. Bliss Vojislav Milijic Nenad Petrovic Mersudin Avdibegovic Milan Mataruga 《Small-Scale Forestry》2011,10(4):435-455
Small-scale forestry in Serbia is characterized by high fragmentation of properties, a large number of parcels and forest
owners. Numerous activities for private forest owners in Serbia supported by the State, FAO and CEPF have resulted in an increased
interest of owners in forming private forest owners’ associations (PFOA). The goal of this paper is to explore preconditions
that are necessary for organizing private forest owners in Serbia into effective associations. In order to reach this goal,
results of PRIFORT project were used. The over-arching research questions of this paper are: “What is the level of interest
among forest owners in forming owners’ associations?”; “Why has forest owner interest in organizing developed so slowly?”
and “What are the necessary preconditions for the development of private forest owners’ organizations in the country?” In
order to answer these questions, quantitative survey with 42 close, open and Likert scale questions was conducted. Sample
size was determined following Malhotra’s proportion method and, in total, 350 private forest owners, from nine municipalities
were interviewed. Results of this paper show that majority of respondents are very little or not at all aware of existing
legislation. Almost half of respondents consider that their interests are not represented well. Although about 50% of interviewed
forest owners miss interest organization, only 0,3% are members of PFOA. More than 70% are ready to join association, if it
would provide some economic advantages. 相似文献
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Petrujkić B Samanc H Adamović M Stojić V Petrujkić T Grdović S Sefer D Marković R 《The Japanese journal of veterinary research》2010,58(3-4):171-177
This trial was designed in order to evaluate the incidence of subacute rumen acidosis (SARA) during early lactation and to investigate the possibilities for its prevention by use of a buffering mineral mixture. On the beginning of the trial it was found that the pH value of rumen fluid in 4 animals was lower than normal (pH < 6.0) and that 20% of animals have had SARA. The control and the experimental group of cows were fed the same meal with exception of concentrated feed which in the experimental group contained the mineral mix with buffering activity in amount of 1%. Continuous addition of buffering mineral mixture in the amount of 1% in concentrated feed for early lactation cows successfully prevents SARA formation and leads to increased milk production, as well as increased milk fat and protein content. 相似文献
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Snježana Zrnčić Dražen Oraić Ivana Giovanna Zupičić Željko Pavlinec Dragan Brnić Žaklin Acinger Rogić Ivica Sučec Dieter Steinhagen Mikolaj Adamek 《Journal of fish diseases》2020,43(6):673-685
Common carp (Cyprinus carpio) is a very important fish species for warm-water aquaculture in Croatia. All Croatian carp farms are subjected to a surveillance programme for the presence of koi herpesvirus (KHV), causing a deadly disease called koi herpesvirus disease (KHVD). However, there is no surveillance for other viral pathogens of importance like carp edema virus (CEV), a causative agent of koi sleepy disease (KSD). During regular testing within the KHVD surveillance programme, we tested samples for CEV simultaneously. The screening indicated possible outbreaks of KHVD and KSD. During 2016, KHVD broke out in an isolated area and soon thereafter a KHV eradication programme was successfully performed. However, during 2018 and 2019, two additional mortality events occurred in lakes in the southern part of Croatia during the spring. Samples from both events tested positive for CEV. An epidemiological investigation confirmed the introduction of infected carps from an infected farm to one of the lakes. To prevent the spreading of CEV into open waters, it is of utmost importance to introduce CEV testing before fish movement or to perform regular testing of all carp farms in the country to determine CEV prevalence for the purpose of implementation of control measures. 相似文献
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Barbara Pipan Dragan Žnidarčič Vladimir Meglič 《The Journal of Horticultural Science and Biotechnology》2017,92(2):192-198
The genetic composition of sweet potato [Ipomoea batatas (L.) Lam.] (2n = 6x = 90) is reflected in different levels of genetic variation. The main objective of the present study was a comparison of genetic diversity parameters of different ploidy levels (2n, 4n, and 6n codominant allele determination), analyzed on two high-resolution capillary platforms. Fragment analysis was performed by applying SSR markers on a 3130XL Genetic Analyzer (ABI 3130) and QIAxcel Advanced System (QX). A high level of expected heterozygosity (He) as a measure of genetic diversity was observed for both ABI3130 (0.731) and QX (0.679). Molecular variance was 17% for ABI3130 and 10% for QX. Comparison between genetic distance matrices based on allele lengths showed a moderate Mantel correlation coefficient (rxy = 0.557) between ABI3130 and QX. Global cluster analysis using the Bayesian approach distributed the observed genotypes into two clusters on both capillary platforms. Our results show that the two high-resolution capillary electrophoreses for codominant data on 2n, 4n, and 6n levels are applicable in genetic diversity studies but their efficiency depends on in-resolution expectations, financial resources, available time, and the equipment of the laboratory. 相似文献
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Auclair S Silberberg M Gueux E Morand C Mazur A Milenkovic D Scalbert A 《Journal of agricultural and food chemistry》2008,56(14):5558-5563
Atherosclerosis, which is closely linked to nutritional habits, is a major cause of mortality in Western countries. Most of the previous investigations carried out on health effects of apples have been focused on their capacity to lower lipid concentration as well as on their antioxidant effects. The aim of the present study was to investigate the antiatherosclerotic effects of apple polyphenols and fibers. A crude apple polyphenol extract and low-viscosity apple fibers isolated from cider apples were administered separately or in association with the diet of apo E-deficient mice. After 4 months of supplementation, lipemia and oxidative stress biomarkers were measured and atheroslerotic lesions assessed by histomorphometry. Total plasmatic cholesterol and triacylgycerol levels were not affected by supplementation, and hepatic cholesterol level was lower in the group supplemented with both fibers and polyphenols. Uric acid concentrations and antioxidant capacity (FRAP) in plasma were reduced in all groups supplemented with polyphenols or fibers. The mean lesion area was reduced by 17, 38, and 38%, respectively, for the polyphenol, fiber, and polyphenol + fiber groups. Apple constituents supplied at nutritional doses therefore limit the development of atherosclerotic lesions in the aorta of apo E-deficient mice. On the basis of the results, we hypothesize that apple fibers and polyphenols may play a role in preventing atherosclerosis disease by decreasing uric acid plasma level. 相似文献