Abstract Colony losses, including those induced by the colony collapse disorder, are an urgent problem of contemporary apiculture which has been capturing attention both apiculturists and research community. CCD is characterized absence adult dead bees in hive few workers a queen remain, ratio between brood quantity number heavily disturbed favor former, more than enough food present. Robbing behavior pests usually attacking weakened do not occur. In present paper, causes emergence this...

The aim of this research was to test the CHD gene ( C hromo H elicase DNA ‐binding gene) as a universal molecular marker for sexing birds relatively distant species. corresponds because its high degree conservation and different lengths in Z W chromosomes due intron sizes. isolated from feathers amplification performed with following sets polymerase chain reaction PCR ) primers: 2550 F /2718 R P2/ P 8. Sex determination attempted 284 samples 58 bird It successful 50 species; 16 those...

Abstract Twenty-one specimens of pike-perch (Sander lucioperca) were caught in the Danube-Tisa-Danube Canal city area Novi Sad for parasitological examination. The presence nematodes muscles was revealed three fish. parasites identified to belong species Eustrongylides excisus, which is a paratenic host. This finding represents first determination larvae Serbia. infected by ingestion benthos- or plankton-eating fishes, second intermediate hosts harbouring fourth-stage nematode larvae. E....

Protection of honey bees is great economic importance because their role in pollination. Crucial steps towards this goal are epidemiological surveys pathogens connected with bee losses. In study deformed wing virus (DWV), chronic paralysis (CBPV), acute (ABPV) and sacbrood (SBV) were investigated colonies different strength located five regions Serbia. The relationship between colony occurrence/infection intensity assessed as well the genetic sequences from Serbia worldwide. Real-time RT-PCR...

Commercially and traditionally managed bees were compared for oxidative stress (superoxide dismutase (SOD), catalase (CAT), glutathione S-transferase (GST) malondialdehyde (MDA)), the prevalence of parasites (

Grooming behaviour is considered an important defensive mechanism of honey bees against Varroa mites. The aim this study was to reveal whether grooming a useful criterion in breeding Varroa-tolerant bees. To obtain reliable evaluation the environmental influences were excluded. degree potential estimated by percentage damaged mites total number fallen heritability throughout three consecutive generations queens assessed mother-daughter regression method. Among unselected queens, expressed...

The influence of various diets on the quality Apis mellifera queens was assessed. Colonies intended for queen cell production were assigned to four groups fed (1) sugar-only, (2) mix sugar, honey and fresh pollen, (3) sugar pollen substitute (FeedBee®), (4) natural sources. In addition, a fifth group had cells obtained naturally, by swarming. Sugar-only diet exerted significant (p < 0.05) stimulating effect acceptance weight newly emerged queens, not affecting mated queens. Among those...

species are significant intestinal commensals of animals, including poultry. However, they have emerged as important opportunistic infective agents in both veterinary and human medicine well major nosocomial pathogens, owing to their increasing antimicrobial resistance. This research aimed investigate the prevalence resistance patterns

The aim of the study was to examine production parameters and chemical composition fillets in tench, Tinca tinca L., farmed one two systems: an extensive system based on only natural food (NF) available fish ponds; a semi-intensive plus addition formulated feeds supplemented with various oils: (FO), rapeseed (RO), soybean (SO), or linseed oil (LO). Proper pond preparation resulted favourable amount structure all ponds. rearing had significant influence tench yield, muscle lipid contents...

This work was aimed at the detection of differences in occurrence seven bee pathogens between colonies kept commercial and traditional ways. The research conducted on 120 apparently healthy, commercially DB hives 24 traditionally primitive, so-called trmka Pester Plateau. Brood samples were taken from all to assess brood disease agents (Paenibacillus larvae, Melissococcus plutonius, Ascosphaera apis sacbrood virus – SBV) adult (deformed wing DWV, chronic paralysis CBPV acute ABPV). PCR...

The aim of this work was the investigation on efficacy pulverised sugar dusting knocking-down Varroa destructor mites and influence dynamics treatment degree infestation in honey bee colonies. Two methods were deployed to measure colonies with V. mites: shake method technique which involves mesh bottom boards equipped sticky inserts. research carried out 30 strong three successive years. results proved that (particle diameter below 40 μm) influenced fall comparison both their off prior...

For decades intensive husbandry has more or less been based on the use of antibiotics in sub-minimum inhibitory concentrations (sub-MIC) aimed at growth promotion. Continuous exposure animal intestinal microbiota, including opportunistic zoonotic pathogens, to sub-MIC poses a pressure selection and spread bacteria strains with developed mechanism antibiotic resistance. These may be transferred people either by direct contact farm animals indirectly, via food chain. Although EU ban as...

Contents Foetal sex determination using polymerase chain reaction ( PCR ) in mammals is based on the amplification of gender‐specific foetal DNA sequences circulating maternal blood. The bovine synepitheliochorial placenta does not allow a direct contact between trophoblast and blood, resulting difficult passage and, consequently, its very small amounts bloodstream. Circulating cell‐free (ccff encompasses short nucleotide fragments (300–600 bp) circulation. aim this study was to assess...

Niclosamide is applied for the treatment of disease common carp hatchlings caused by Bothriocephalus acheilognathi. One main characteristics this drug a short half-life in water. A series experiments were performed to determine distribution niclosamide residues organs and meat carp, controlled conditions. It was shown that 72.42% deposited liver, 18.79% kidney 7.79% spleen. However, only about 3% detected meat. This provides rapid effective fish, completely eliminating tapeworms.

A coprological examination of 680 grazing sheep was performed in Eastern Serbia from March 2011 to November 2012 order determine the presence gastrointestinal (GI) nematode parasites. Fecal samples were randomly collected and examined by using qualitative quantitative techniques. It found that 74.56% infected. Samples contained eggs processed for larval development eleven genera identified: Haemonchus (46.91%), Ostertagia (25.88%), Marshallagia (21.91%), Cooperia (14.12%), Trichostrongylus...

Clostridium perfringens is a Gram-positive, endospore-forming, anaerobic rod, ubiquitous in nature. C. strains can produce about 17 toxins. Many of them lead to miscellaneous diseases, among which the enteric ailment may be most common and utmost importance. In present work 34 isolated from feed one cow suspected have died clostridial infection were subjected molecular analysis. order detect genotypes, following genes coding for toxins targetted: cpa, cpb, cpb2, cpe, etx iap. The multiplex...

Abstract Apart from the efficiency of coumaphos against Varroa mites, its impact on oxidative status and survival honey bee ( Apis mellifera ) was assessed. The research conducted hives same apiary, equalised regarding number bees, brood area food storage. Based infestation were allotted to two groups: non-infested (N) infested (I). Both groups either treated (T) – NT IT, or untreated (U) NU IU. treatment bees controlled with a follow-up amitraz. 96-97%. This organophosphate had negligible...

This study was undertaken to estimate the prevalence of gastrointestinal helminths in calves western Serbia. Throughout 2011 faecal samples were collected from 600 aged up 180 days, examined with flotation method and a modified McMaster technique. The parasitizing helminth species identified level infection compared between different age groups. As many as 64.17% animals found be infected. following parasite diagnosed: Moniezia spp. (3.17%), Toxocara vitulorum (35.00%), Strongyloides...

The genotoxicity of fumagillin was evaluated assessing the mitotic index and chromosome aberrations in mouse bone-marrow cells. Mice were given orally doses 5, 10 20 mg/kg bw. All significantly (p&lt;0.001) reduced index. medium maximum led to significant (p&lt;0.01 p&lt;0.001, respectively) increases numeric aberrations. highest dose induced both structural (p&lt;0.001), insertions on first pair autosomes that amplified 1C 1E regions. These results pointed genotoxic potential range applied....

The aim of the research was to evaluate carcass characteristics and meat quality from chickens fed on diets in which fish meal substituted with raw earthworms (Lumbricus rubellus) or earthworm meal. In trial lasted 42-days, 100 one-day-old Hybro broilers were divided into control three experimental groups. group standard broiler feed, first (E-I) second groups (E-II) a diet 50% 100% meal, respectively, whilst third (E-III) consumed feed without but given chopped ad libitum day 1 42....