This research examined the effects of two rearing systems (conventional versus free-range) on carcass characteristics, and cholesterol content, chemical and fatty acid properties of the backfat from Mangalitsa pigs. Depending on the rearing system utilized and live weight observed, we found important differences in the heaviness of the cold and warm Mangalitsa carcasses. The maximum total cholesterol in the backfat of pigs reared outdoors was 46.96 mg kg⁻ 1 , while the maximum total cholesterol in backfat of conventionally-raised Mangalitsa pigs was 55.80 mg kg⁻ 1 . The backfat from free-ranging Mangalitsa pigs contained lower levels of PUFA n-6 and greater amounts of PUFA n-3. The ratio of PUFA/SFA was remarkably different in pigs raised in the two systems, whereas the ratio of MUFA/SFA was lower in the pigs reared outdoors. Based on these results, the selection of rearing system could affect the chemical properties and carcass characteristics of Mangalitsa backfat.

Algae from the genus Prototheca are the only plant-like microorganisms which can cause inflammation and alterations in the mammary gland. Prototheca mastitis is usually recognized as a chronic and symptomless disease with reduced milk production and a very high somatic cell count. Molecular identification of Prototheca spp. is helpful for the differentiation of pathogenic from non-pathogenic strains which are probably milk contaminants. Genotype-specific PCR assays, based on the 18S rDNA gene sequences, have recently been developed to differentiate three genotypes of Prototheca zopfii, of which Prototheca zopfii genotype 3 was reclassified in a new species: Prototheca blaschkeae. P. zopfii genotype 2 is characterized as the main causative agent of Prototheca mastitis that leads to significant economic losses in primary milk production. The purpose of this study was to give a molecular characterization of Prototheca strains isolated in cases of subclinical and clinical mastitis, as well as to determine the influence of these pathogenic algae on the milk somatic cell count. After microbiological examination, algae from the genus Prototheca were isolated in pure cultures from 1.8% of all tested milk samples, and all 13 (100%) isolates were determined as Prototheca zopfii genotype 2 by a genotype-specific PCR. This study has provided the first molecular identification of Prototheca zopfii genotype 2 in the Republic of Serbia. In the case of subclinical Prototheca mastitis, the somatic cell count was 4,175,244 ± 1,233,685/mL of milk. A distinctly higher somatic cell count (P<0.05) was found in the quarters infected by Prototheca zopfii genotype 2 than in the quarters infected by Staphylococcus aureus, which is the most common mastitis causative agent worldwide. The results from this study support previous observations that P. zopfii genotype 2 is the main causative agent of Prototheca mastitis which leads to a significant increase in the somatic cell count in the milk.

UvodPravilna ishrana ima veliki značaj u kvalitetu života ljudi. Iz tog razloga, zbog svoje hranljive vrednosti, riblje meso zauzima značajno mesto u ishrani ljudi. Sve veći deo stanovništva i u našim krajevima uviđa da je ishrana ribom nužna potreba, da konzumiranje mesa ribe nije uzrok nijedne zoonoze i da je meso ribe manje opterećeno različitim aditivima koji se, u savremenoj proizvodnji, koriste u svinjarstvu i živinarstvu. Zbog svojih karakteristika, riblje meso je jedna od nutritivno najvrednijih namirnica. Ono što ribu, kao namirnicu, čini posebno privlačnom za potrošača, jeste, pored povoljnog sadržaja proteina, minerala i vitamina i to što je veoma bogat izvor esencijalnih masnih kiselina koje imaju ulogu u prevenciji brojnih oboljenja (Ćirković, 2002).Od osnovnih sastojaka mesa ribe, najviše varira količina masti, koja je različita kod različitih vrsta riba, a pokazuje značajna odstupanja i unutar iste vrste, što zavisi od sezone izlova, polnog ciklusa, ishrane, starosti i pola ribe. Masti ribe se razlikuju od masti sisara po odnosu zasićenih i nezasićenih masnih kiselina. U mastima ribe ima više mono-i polinezasićenih masnih kiselina nego u mastima sisara. Koefi cijenat svarljivosti masti (procenat masti ribe koji se može resorbovati u digestivnom traktu) sveže, zamrznute i dimljene ribe iznosi i do 91% (Baltić i Tadić, 2001), a energetska vrednost mesa ribe zavisi od količine masti (Vranić i dr., 2010 ).Sadržaj masti u mesu različitih vrsta riba kreće se od 0,5 do 22% (Tarr, 1954), pa je prema sadrža-ju masti izvršena podela riba na posne ribe, sa manje od 5% masti (oslić, škarpina, zubatac, iverak, smuđ, linjak, grgeč, štuka, pastrmka), polumasne ribe, sa 5-10% masti (sardela, bakalar, inćun, cipal, ugor, sitna bela riba, beli amur, tolstolobik, deverika, mrena, jesetra, klen) i masne ribe, sa više od 10% masti (papalina, skuša, haringa, losos, tuna, šaran, som), (Baltić i Teodorović, 1997). Prema Lambaši i dr. (2005), na osnovu sadržaja masti, izdvaja se još jedna kategorija riba, a to su visokomasne vrste riba, koje gomilaju mast u potkožno masno tkivo, gde spadaju jegulja, kečiga, tovljeni šaran. Riba se, takođe, na osnovu raspodele masti u telu, deli na plavu i belu. Plava riba deponuje masti u masnim ćelijama, po celom telu, a bela riba deponuje masti u jetri i, donekle, u trbušnoj šupljini. Udeo masti u mesu bele ribe je nizak i čini samo oko 1% (Ackman, 1980). Pregledni rad Preview paperPolinezasićene masne kiseline u mesu ribe i njihov značaj za zdravlje ljudi

Considering the Serbias potential and tradition in production of quality beef meat as food for human consumption and raw material in the food industry and the demand of the EU market, shows the need to intensify the production of this foodstuff. Aim of this paper was to analyze the effect of age of young simmental bulls on dressing percentage in slaughterhouse, according to the standard applied in the EU (Council Regulation (EC) No 1234/2007, Commission Regulation (EC) No 1249/2008; Commission European, Directorate-General for Agriculture and Rural Development). Regulations that define more precisely the quality of meat are only partially implemented in Serbia (Official Gazette of the SFRY 34/74, 26/75, 13/78). The accuracy of the slaughter processing of carcasses is assessed as adequate in the facility in which the analysis was conducted. The study was conducted on 116 young bulls carcasses, from redemption. Two groups of young bulls (cattle) were formed, first group the age of 269-350 days and second group the age of 351-450 days. The results show that due to the wider age intervals in the second group (351-450 days) the difference in mass

In order to satisfy the increasing demand for food production which will reach the consumers in a safe condition, and at the same time meet their expectations in terms of quality, the packaging industry has been continually developing and striving to implement new technologies such as nanotechnology. By application of nanoparticles and other nanomaterials of various organic and inorganic compounds in standard packaging materials, the quality of packaging such as polymer-flexibility, gas barrier properties, temperature/moisture/ light stability, thermal and chemical stability and biodegradability has been improved. Moreover, the use of polymer nanotechnology enables constant monitoring of packaging conditions, providing in that way the preservation of fresh food, extension of shelf life of foods and improvement of products quality and safety. The application of nanopackaging on the market is slowed due to lack of data on potential risk to human health and the impact on the environment, as well as to lack of legal regulations. These shortcomings affect public perception of nanotechnology, but when these problems are overcome application of nanopackaging promises to become an irreplaceable part of industrial production of food.

Salmonella is one of the most important zoonotic pathogens and the consumption of pork meat is one of the major sources of human infection. The aim of this study was to investigate the presence of salmonella on pig carcasses. Samples were taken from slaughterhouse A in two instances (sampling I and II, a total of 300 samples) and in slaughterhouse B once (sampling III, a total of 120 samples), from pork carcasses after the stunning and after the processing. Of the total number of examined samples, the percentage of positive samples for salmonella from pork carcasses after stunning was 46.7% (90/42), and samples from the carcasses after processing 3.3% (90/3). Operations taking place on the slaughter line could have an effect on the salmonella contamination of carcasses

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A b s t r a c t: The goal of this paper was to explore attitudes and habits of