Volume 21, No. 1 Supplement

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Volume 21, No. 1 Supplement

Supports for local breeds in the European region – an overview

Autori: Bojkovski, D., Simčič, M., Kompan, D.

DOI: 10.18047/poljo.21.1.sup.1

This study analysed the incentives for conservation of local breeds in 35 European countries, with the particular reference to the situation in Slovenia. In order to collect all necessary data in different countries, detailed questionnaire was developed and sent out to National coordinators for...

Ključne riječi: local breeds, subsidies, incentives, conservation

Research on diversity, utilization and production quality of local breeds in Slovakia

Autori: Kasarda, R., Trakovická, A., Moravčíková, N., Šidlová, V., Kadlečík, O.

DOI: 10.18047/poljo.21.1.sup.2

State of the research in the area of utilization of local breeds in Slovakia provides sufficient information for the farmers and breeders associations either on level of diversity based even on pedigree or molecular information as well as the information on molecular composition of milk and meat...

Ključne riječi: degree of endangerment, genetic diversity, livestock, local breeds

Local pig breeds and pork products in Croatia and Slovenia – unexploited treasure

Autori: Kušec, G., Dovč, P., Karolyi, D., Čandek Potokar, M.

DOI: 10.18047/poljo.21.1.sup.3

The rationale, the concept and key challenges of the H2020 project TREASURE dealing with local pig breeds is presented and discussed. The action addresses the phenotypic and genetic characterization, performance of local pig breeds in diverse production systems and their environmental impact...

Ključne riječi: sustainable pig production, local pig breeds, product quality

Sustainable milk production in different dairy cattle systems and valorisation of environmental chain on the basis of added value

Autori: Cassandro, M.

DOI: 10.18047/poljo.21.1.sup.4

Aim of this review is to estimate milk yield and predicted methane emissions added values in local and cosmopolitan cow breeds reared in Italian circumstances. Nowadays it is well known that over the next 50 years, the world’s farmers will be asked to produce more food than has been produced...

Ključne riječi: substainable systems, animal production, cattle breeds, added values, production and environmental chains

Population genetic structure of autochthonous Black Slavonian Pig

Autori: Lukić, B., Smetko, A., Mahnet, Ž., Klišanić, V., Špehar, M., Raguž, N., Kušec, G.

DOI: 10.18047/poljo.21.1.sup.5

As Black Slavonian pig was forgotten and replaced by commercial hybrid pigs, after mid 1950s population declined drastically. Today’s population was founded from 46 sows and 6 boars in 1996 while currently consist of 1064 sows and 163 boars. Aim of this study was to evaluate the genetic...

Ključne riječi: pedigree analysis, Black Slavonian pig, inbreeding, genetic variability, effective population size

Estimation of genomic variation in cervids using cross-species application of SNP arrays

Autori: Moravčíková, N., Kirchner, R., Šidlová, V., Kasarda, R., Trakovická, A.

DOI: 10.18047/poljo.21.1.sup.6

The aim of this study was to assess the utility of commercially developed genotyping array for cross-species genotyping in order to estimate the genetic variation across two species from family Cervidae. The genotyping of individuals was carried out using Illumina BovineSNP50 BeadChip. The...

Ključne riječi: bovineSNP50 chip, fallow deer, genetic differentiation, polymorphism, red deer

Development of an approximate multivariate two-step approach for the joint genetic evaluation of Austrian and German dairy cattle

Autori: Pfeiffer, C., Fuerst-Waltl, B., Fuerst, C.

DOI: 10.18047/poljo.21.1.sup.7

Multivariate genetic evaluation in modern dairy cattle breeding programs became important in the last decades. The simultaneous estimation of all production and functional traits is still demanding. Different meta-models are used to overcome several constraints. The aim of this study was to conduct...

Ključne riječi: approximate multiple trait, de-regressed breeding values, yield deviation, fertility, cattle

Population studies of Czech Hucul horses

Autori: Vostrá Vydrová, H., Vostrý, L., Hofmanová, B., Veselá, Z., Schmidová, J., Majzlík, I.

DOI: 10.18047/poljo.21.1.sup.8

Population studies were carried out analysis Czech Hucul breed based on pedigree information of animals registered in the Studbook. Pedigree records collected from the year 1834 to 2013 comprised information on 9455 animals used in the analyses. The pedigree depth of the analysed individuals was up...

Ključne riječi: inbreeding, rate of inbreeding, effective populations

Genomic variability among cattle populations based on runs of homozygosity

Autori: Šidlová, V., Kasarda, R., Moravčíková, N., Trakovická, A., Curik, I., Ferenčaković, M.

DOI: 10.18047/poljo.21.1.sup.9

In this work, the distribution of different lengths ROH (runs of homozygosity) in six cattle breeds was described. A total of 122 animals from six cattle breeds (Holstein, Simmental, Austrian Pinzgau, Ayrshire, MRI-Meuse Rhine Issel and Slovak Pinzgau) were analysed. The ROH approach was used to...

Ključne riječi: autozygosity, diversity, genotyping array

Genomic background of entropion in Fleckvieh cattle

Autori: Mészáros, G., Stückler, M.P., Ferenčaković, M., Sölkner, J.

DOI: 10.18047/poljo.21.1.sup.10

Runs of homozygosity (ROH) and genome wide association study (GWAS) were used to identify genomic regions of entropion in Austrian Fleckvieh cattle. Entropion is an eye disorder where the eye lids turn inward, causing inflammations, cornea damage or even blindness if left untreated. A total of 196...

Ključne riječi: cattle, SNP, GWAS, runs of homozygosity, eye disorder

Genealogical decomposition of the effective population size: a case study on Croatian autochthonous cattle breeds

Autori: Reljanović, M., Ristov, S., Ćubrić Ćurik, V., Čaćić, M., Ferenčaković, M., Ćurik, I.

DOI: 10.18047/poljo.21.1.sup.11

Effective population size (Ne) is one of the most important tools used to assess genetic diversity for conservation purposes. Using pedigree data of three Croatian autochthonous cattle breeds (Buša, Istrian and Slavonian Syrmian Podolian) the effective maternal (NeF), paternal (NeM) and combined...

Ključne riječi: genealogical analysis, effective population size, cattle, sex ratio

Lactate dehydrogenase gene genotypization for species identification in a fish farm on the river Neretva

Autori: Margeta, P., Bogut, I., Ivanković, M., Margeta, V.

DOI: 10.18047/poljo.21.1.sup.12

There are severale Salmonid species, found in the river Neretva basin, among which S. trutta and S. obtusirostris. Also, natural hybrids such as S. obtusirostris x S. trutta have been observed. In one fish farm on the river Neretva, S. trutta and S. obtusirostris were decided to breed separately...

Ključne riječi: Lactate dehydrogenase gene, PCR-RFLP, S. trutta, S. obtusirostris

Effect of breed and sampling place on the mineral content of cattle hair

Autori: Szigeti, E., Kátai, F., Komlósi, I., Szabó, Cs.

DOI: 10.18047/poljo.21.1.sup.13

Mineral intake is important for high production level. Estimation of exact mineral intake is difficult in grazing and/or group housed animals like cattle. Accessing of long term mineral status seems to be possible using hair mineral analyses. However, several factors can affect the results...

Ključne riječi: cattle, mineral content, hair analyses

Prediction of global and local Simmental and Red Holstein Friesian admixture levels in Swiss Fleckvieh cattle

Autori: Khayatzadeh, N., Mészáros, G., Gredler, B., Schnyder, U., Curik, I., Sölkner, J.

DOI: 10.18047/poljo.21.1.sup.14

In this study we estimated levels of local ancestry for individuals of the Swiss Fleckvieh dairy cattle population. It is a composite breed descending from two pure breeds, Simmental (SIM) and Red Holstein Friesian (RHF). Illumina BovineSNP50 Beadchip genotyping data for a total of 500 pure and...

Ključne riječi: cattle, admixture, SNP, global ancestry, local ancestry, QTL

Effect of dietary NPP level and phytase supplementation on the laying performance over one year period

Autori: Tischler, A., Halas, V., Tossenberger, J.

DOI: 10.18047/poljo.21.1.sup.15

Our trial was aimed to study the effect of different dietary non-phytin phosphorus (NPP) levels with and without phytase enzyme supplementation on laying performance and eggshell quality of Tetra SL-LL in the last 25 weeks of the long-term (17 months) egg production. A total of 69 Tetra SL-LL...

Ključne riječi: laying hen, phosphorus, phytase, long-term laying period, egg production, eggshell quality

A higher proportion of PUFA in diet increases the PUFA content in rabbit meat, but reduces the oxidative stability of meat

Autori: Trebušak, T., Levart, A., Salobir, J., Pirman, T.

DOI: 10.18047/poljo.21.1.sup.16

The aim of our study was to determine the changes in the fatty acid composition of rabbit meat, if palm fat (99% of saturated fatty acids (SFA)), as a source of fat in rabbit diet, was replaced with linseed oil (71% of polyunsaturated fatty acids (PUFA), containing 52% of α-linolenic acid...

Ključne riječi: nutrition, rabbit meat, oxidative stability, PUFA, MDA

Effect of protein shortage and conjugated linoleic acid supplementation on quality traits and modelling of coagulation, curd firming and syneresis of Holstein-Fresian milk

Autori: Cesaro, G., Schiavon, S.

DOI: 10.18047/poljo.21.1.sup.17

Aim of the present study was to evaluate the effect of diets with optimal (CP 15% DM) or suboptimal (CP 12.3% DM) protein content, supplemented (CLA+) or not (CLA-) with rumen-protected conjugated linoleic acid (rpCLA) on some cheesemaking properties. Twenty Holstein-Fresian mid lactating dairy...

Ključne riječi: bovine milk, milk coagulation properties, curd firming modelling, dietary protein, rumen-protected conjugated linoleic acid

Prediction of gross feed efficiency in Italian Holstein Friesian bulls

Autori: Finocchiaro, R., Penasa, M., Marusi, M., De Marchi, M., Cassandro, M.

DOI: 10.18047/poljo.21.1.sup.18

The aim of this study was to predict gross feed efficiency of Italian Holstein Friesian bulls selected for production, functional and type traits. A total of 12,238 bulls, from the April 2015 genetic evaluation, were used. Predicted daily gross feed efficiency (pFE) was obtained as ratio between...

Ključne riječi: gross feed efficiency, correlation, genetic trend, Holstein Friesian bulls

The contribution of social group effect to variation in boars growth

Autori: Flisar, T., Malovrh, Š., Kovač, M.

DOI: 10.18047/poljo.21.1.sup.19

The aim of the study was to estimate the contribution of group to phenotypic variance of daily gain on different intervals. The focus was on data structure and differences of variance components estimated with and without effect of the social group. Growth of 806 boars from 443 litters was obtained...

Ključne riječi: pigs, genetic evaluation, daily gain, social interaction, group effect

Milk supply of rabbit kits

Autori: Kacsala, L., Matics, Zs., Kasza, R., Gerencsér, Zs., Szendrő, Zs.

DOI: 10.18047/poljo.21.1.sup.20

In general, rabbit does nurse the kits once-a-day for 3-4 minutes. During this time the kits are able to consume their daily feed requirement, which is about equal to 1/6 of their body weight. The milk intake, body weight gain and survival of the kits depend on the milk production and their mother...

Ključne riječi: milk production, suckling kits, nursing

The physical form of corn influences the rumen bacterial biodiversity – preliminary results

Autori: Rossi, G., Tagliapietra, F., Pinloche, E., De La Fuente, G., Schiavon, S., Maccarana, L., Bittante, G., Newbold, C.J.

DOI: 10.18047/poljo.21.1.sup.21

The aim of this study was to investigate the rumen bacteria in terms of genetic biodiversity and variation due to different physical form of corn in cow diet. A total of twenty dry cows were fed for 3 months with the same diet, only differed for corn physical form, ten received corn grains, while...

Ključne riječi: milk production, suckling kits, nursing

Heat stress and milk production in the first parity Holsteins – threshold determination in eastern Croatia

Autori: Gantner, V., Mijić, P., Kuterovac, K., Barać, Z., Potočnik, K.

DOI: 10.18047/poljo.21.1.sup.22

In the light of increasingly rapid climate change worldwide, one of the primary goals is to reduce financial losses of dairy farmers and to enable the sustainable farming. In order to realize those goals, the necessity of implementation of breeding values for heat resistance in breeding strategies...

Ključne riječi: first parity Holsteins, heat stress, temperature-humidity index, threshold, Eastern Croatia

Study of milk protein composition and coagulation properties of Burlina local cattle breed

Autori: Niero, G., Penasa, M., De Marchi, M., Visentin, G., Cassandro, M.

DOI: 10.18047/poljo.21.1.sup.23

Burlina is a dual-purpose cattle breed, mainly reared in mountain areas of Veneto Region (Italy). The aim of this study was to investigate milk protein composition and milk coagulation properties (MCP) of Burlina breed. A total of 80 individual milk samples were collected and milk casein fractions...

Ključne riječi: local breed, casein fraction, milk coagulation property

The environmental impact of cow milk in the northeast of Italy

Autori: Dalla Riva, A., Burek, J., Kim, D., Thoma, G., Cassandro, M., De Marchi, M.

DOI: 10.18047/poljo.21.1.sup.24

This study presents a “from cradle to farm gate” Life Cycle Assessment on cow milk produced in Northeast Italy. System boundaries consider milk and meat delivered at farm gate, including all upstream emissions. All farm activities were considered. Inputs and outputs required in one year...

Ključne riječi: LCA, dairy farm, milk, environmental impact

Fatty acid profile in milk of Bovec sheep fed in the stable or grazed in different pastures

Autori: Cividini, A., Simčič, M.

DOI: 10.18047/poljo.21.1.sup.25

The fatty acid profile in the milk of Bovec sheep fed total mixed ratio (TMR) and grazed natural pastures in the lowland (480 m altitude) supplemented with the second harvest (L) as well as grazed different altitude mountain pastures; M1 (1100- 1300 m altitude), M2 (1600-1700 m altitude), M3 (1800...

Ključne riječi: ewe milk, fatty acid, stable, mountain grazing

Effects of feeding system and breed on lamb productive and carcass characteristics in the south Mediterranean region

Autori: Atti, N., Mahouachi, M., Ben Hamouda, M.

DOI: 10.18047/poljo.21.1.sup.26

The objective of this study was to evaluate the effect of feeding regimes and breed type on growth, non-carcass components and carcass characteristics of light lambs. Twenty four light lambs from the rustic fat-tailed Barbarine (BB) breed and 21 from the thin-tailed Sicilo-Sarde (SS) breed were...

Ključne riječi: grass, grazing, concentrate, growth, lambs, carcass traits

Analysis of conformation traits of the Slovenian cold-blooded horse

Autori: Simčič, M., Mesarič, M., Potočnik, K.

DOI: 10.18047/poljo.21.1.sup.27

Slovenian Cold-Blooded horse is an autochthonous horse breed in Slovenia, traditionally reared in the North-Eastern and Northern parts of Slovenia. Today the breed is widespread all over the country. Breeding program for the Slovenian Cold-Blooded horse was accepted 2005 when the Association of...

Ključne riječi: Slovenian Cold-Blooded horse, conformation trait, body measurements, gaits

Individuality of centre of body movement at walk and trot within the Haflinger breed

Autori: Zsoldos, R.R., Schröder, U., Licka, T.F.

DOI: 10.18047/poljo.21.1.sup.28

Kinematic measurements of fourteen Haflinger horses without lameness, walking and trotting on a treadmill were taken to document the location of the centre of the body (CB), defined as the centre between markers on the head, on the withers, on the sacral bone and on the lateral wall of all four...

Ključne riječi: motion analysis, conformation, centre of body, walk, trot, Haflinger horses

Chemical composition and in vitro fermentation of silages from different sorghum hybrids cultivated in three pilot farms

Autori: Cattani, M., Maccarana, L., Sartori, A., Converso, R., Bailoni, L.

DOI: 10.18047/poljo.21.1.sup.29

This experiment compared silages obtained from ten hybrids of sorghum grown in three farms of the Po Valley, in terms of in vitro degradability, gas production (GP), and energy value. Hybrids were sown on 30 experimental plots (three plots per each hybrid), harvested at late-milk stage of maturity...

Ključne riječi: Sorghum hybrids, Sorghum silage, in vitro degradability, in vitro gas production, dairy cows

Use of fourier transform infrared (FTIR) spectroscopy to predict VFA and ammonia from in vitro rumen fermentation

Autori: Tagliapietra, F., Rossi, G., Schiavon, S., Ferragina, A., Cipolat- Gotet, C., Bittante, G.

DOI: 10.18047/poljo.21.1.sup.30

The aim of the present study was to develop a FTIR method to quantify amounts and proportions of volatile fatty acids (VFA) and ammonia nitrogen (N-NH3) in fermentation fluids collected in vitro using innovative Bayesian models as chemometric technique. A set of 170 fluids, collected before and...

Ključne riječi: mid infrared spectroscopy; in vitro rumen fermentation; Bayesian regression model

Prevalence of caprine arthritis encephalitis virus in association with clinical arthritis in six production farms of French Alpine goats in north-western Croatia

Autori: Tariba, B., Kostelić, A., Salamon, D., Roić, B., Benić, M., Prvanović Babić, N., Salajpal, K.

DOI: 10.18047/poljo.21.1.sup.31

Prevalence of Caprine Arthritis Encephalitis Virus (CAEV) and occurrence of clinical arthritis were investigated on 543 goats of French Alpine breed on six intensive production farms in North-Western Croatia. The aim of the study was to determine seropositivity to CAEV and to examine the occurrence...

Ključne riječi: seropositive, ELISA, lentivirus, small ruminants, health

Wolf (Canis lupus) predation on dairy cattle in eastern Italian Alps

Autori: Faccioni, G., Sturaro, E., Calderola, S., Ramanzin, M

DOI: 10.18047/poljo.21.1.sup.32

Natural wolf recolonization of the Alps brings the challenge to reduce livestock losses and social conflicts. The uncommon impact of a wolf pack on the cattle farming systems of the “Lessinia”, in the eastern Italian Alps was examined in this study. Dairy cattle farming predominates...

Ključne riječi: dairy cattle, mountain, wolf, livestock systems, depredation

Impact of SNPs in candidate genes on economically important traits in Pinzgau cattle

Autori: Trakovická, A., Moravčíková, N., Nádaský, R., Kasarda, R.

DOI: 10.18047/poljo.21.1.sup.35

The aim of this work was to evaluate the impact of polymorphisms in bovine genes encoding leptin (LEP), leptin receptor (LEPR) and pituitary transcription factor (Pit-1) on economically important traits in Pinzgau cattle. The genomic DNA samples were taken from the total of 85 Pinzgau cows. The...

Ključne riječi: LEP, LEPR, milk production, Pinzgau, Pit-1, SNP genotyping

Genetic diversity of Bela Krajina Pramenka compared to three Croatian sheep breeds – a preliminary study

Autori: Jevšinek Skok, D., Šalamon, D., Džidić, A., Bojkovski, D., Simčič, M.

DOI: 10.18047/poljo.21.1.sup.33

In the Balkan Peninsula, different populations of Pramenka were the most common sheep breed. Due to different ecosystems and climate environment, these subpopulations have evolved genetic differences. The largest influence on the local genotype of Bela Krajina Pramenka in Slovenia based on the...

Ključne riječi: Bela Krajina Pramenka, microsatellite markers, genetic diversity

Estimation of genetic parameters for production traits in pig breeds in Croatia

Autori: Smetko, A., Škorput, D., Luković, Z., Mahnet, Ž., Klišanić, V., Špehar, M.

DOI: 10.18047/poljo.21.1.sup.34

Genetic parameters for backfat thickness and test time were updated and used in genetic evaluation for field tested pigs in Croatia. Data consisted of 9,406 animals with measurements for production traits recorded from 2000 to 2014. The number of animals in pedigree was 10,728. Production traits...

Ključne riječi: genetic parameters, pig, breeding, heritability, genetic trend

Population analysis of the local endangered Přeštice Black-Pied pig breed

Autori: Krupa, E., Krupová, Z., Žáková, E., Kasarda, R., Svitáková, A.

DOI: 10.18047/poljo.21.1.sup.36

The pedigree analysis of the local endangered Přeštice Black-Pied pig breed (n=19 289) was performed. Animals born within the period 2012-2014 were assumed as the reference population (n=1 374). The pedigree completeness index reached 100% for four generations back. The 100 % of the genetic pool...

Ključne riječi: pig, engangered, pedigree analysis, inbreeding, genetic diversity

Genetic contribution of ram on litter size in Šumava sheep

Autori: Schmidova, J., Milerski, M., Svitakova, A., Vostry, L.

DOI: 10.18047/poljo.21.1.sup.37

The objective of the present study was to quantify the service sire effect in terms of (co) variance components of born and weaned lambs number and to propose models for the potential inclusion of this effect in the linear equations for breeding value estimation. The database with 21,324 lambings...

Ključne riječi: service sire effect, genetic parameters, reproduction

Genetic diversity in Czech Haflinger horses

Autori: Vostrý, L., Vostrá Vydrová, H., Hofmanová, B., Veselá, Z., Majzlík, I.

DOI: 10.18047/poljo.21.1.sup.38

The Haflinger as a small moutain horse breed originated from the South Tyrol district as a cross of Alpen Mountain breeds with Araber. This breed was expanding to Czech Republic during the last 25 years. The aim of this study was to analyse genetic diversity within the population using...

Ključne riječi: microsatellite data, homozygosity by loci, genetic diversity

Lifetime production of Slovenian local goat breeds

Autori: Žan Lotrič, M., Flisar, T., Jevšinek Skok, D., Kompan, D.

DOI: 10.18047/poljo.21.1.sup.39

The objective of the study was to analyze lifetime production data for two Slovenian locally adapted dairy breeds: Slovenian Saanen goat (334) and Slovenian Alpine goat (1105) and for the dairy type of Dreznica goat (141) which is the only Slovenian autochthonous goat breed. Dataset included...

Ključne riječi: Slovenian Saanen goat, Slovenian Alpine Goat, Dreznica goat, lifetime production, milk yield

Development of integrated cattle genomics knowledge base

Autori: Zorc, M., Kunej, T.

DOI: 10.18047/poljo.21.1.sup.40

Systems biology approaches being applied to animal breeding represent an opportunity to derive greater benefits from animal production systems. The increasingly detailed investigations in systems biology have led to a large amount of data dispersed over various sources; therefore, a centralized...

Ključne riječi: breeding, bioinformatics, cattle, data integration, genomics

The effect of the second grazing period on the fatty acid composition in meat of indigenous Cika and Simmental bulls

Autori: Voljč, M., Čepon, M., Simčič, M., Žgur, S.

DOI: 10.18047/poljo.21.1.sup.41

The aim of the study was to determine fatty acid composition in meat of Cika and Simmental bulls from two different fattening technologies. The herd of 39 young bulls was housed during the winter time and fed the same total mixed ration diet (TMR) based on corn and grass silage with a limited...

Ključne riječi: beef meat, fatty acids, breed, grazing

Environmental factors affecting racing time of trotter horses in Serbia

Autori: Štrbac, Lj., Trivunović, S., Baban, M.

DOI: 10.18047/poljo.21.1.sup.42

Speed, the most important trait in trotter horses, forms the basis for examining their racing ability, and is calculated according to the time it takes to run a certain distance. The phenotypic manifestation of a horse’s speed is controlled by numerous genes and larger or smaller impacts of...

Ključne riječi: trotter, time in race, environmental factors, genetic improvement

The effect of dietary fibre content on skatole and indole production in faeces of immunocastrated male pigs

Autori: Škrlep, M., Batorek Lukač, N., Prevolnik Povše, M., Tomažin, U., Labussière, E., Čandek-Potokar, M.

DOI: 10.18047/poljo.21.1.sup.43

The effect of dietary fibre content on intestinal production of indolic compounds was studied in immunocastrated pigs (IC). In addition, entire males (EM) and IC were compared on control diet (with low fibre content). For the study 32 crossbred pigs were assigned, within a litter to 4 treatment...

Ključne riječi: indole, skatole, dietary fibres, pig; entire males; immunocastrates

Assessing the possible interaction between Carduus marianus and dietary deoxynivalenol on caecal microbiota and fermentation of growing rabbits

Autori: Kachlek, M., Szabó-Fodor, J., Bonai, A., Bors, I., Celia, C., Gerencsér, Zs., Matics, Zs., Szendrő, Zs., Dalle Zotte, A., Kovács, M.

DOI: 10.18047/poljo.21.1.sup.44

Contamination of feed with mycotoxins is a common problem encountered in animal farming. Mycotoxin exposure can affect adversely the health of animals. In rabbits caecal fermentation is an essential digestive process being indication of physiological alterations. Deoxynivalenol (DON) is one of the...

Ključne riječi: rabbit caecum, milk thistle, VFA, aerobic bacteria

Effect of β-alanine and L-histidine on concentration of carnosine in muscle tissue and oxidative stability of chicken meat

Autori: Kralik, G., Sak-Bosnar, M., Kralik, Z., Galović, O., Grčević, M., Kralik, I.

DOI: 10.18047/poljo.21.1.sup.45

This paper presents the results of two separate experiments, each involving 75 chickens of Cobb 500 provenience, divided into three experimental groups. During the last three weeks of fattening, chickens were fed finisher diets supplemented with amino acids β-alanine (0%, 0.5% and 1%) and...

Ključne riječi: β-alanine, L-histidine, carnosine, TBARS, chicken, oxidative stability

Effect of starting body fat content of Leghorn-type laying hens on the changes in their body fat content, egg production and egg composition during the first egg laying period

Autori: Szentirmai, E., Milisits, G., Donkó, T., Budai, Z., Ujvári, J., Áprily, S., Bajzik, G., Sütő, Z.

DOI: 10.18047/poljo.21.1.sup.46

The experiment was carried out with 60 TETRA BLANCA laying hens chosen from 250 TETRA BLANCA pullets based on their body fat content, predicted at 16 weeks of age by means of computer tomography (CT). Pullets with the highest (n=20), lowest (n=20) and average (n=20) body fat content were chosen for...

Ključne riječi: hen, body fat, egg production, egg composition, computer tomography

Comparison of commercial DNA kits and traditional DNA extraction procedure in PCR detection of pork in dry/fermented sausages

Autori: Djurkin Kušec, I., Radišić, Ž., Komlenić, M., Kušec, G.

DOI: 10.18047/poljo.21.1.sup.47

In the present study four commercially available DNA extraction kits (Wizard® Genomic DNA Purification Kit, High Pure PCR Template Kit, DNeasy mericon Food and GeneJET PCR Purification Kit), as well as standard phenol/chloroform isolation technique have been evaluated regarding their...

Ključne riječi: dry/fermented sausage, DNA, extraction method, pig

Preliminary structural optimization of some fumonisin metabolites by density functional theory calculation

Autori: Bors, I., Szabó-Fodor, J., Kovács, M.

DOI: 10.18047/poljo.21.1.sup.48

Maize (Zea mays L.) is often contaminated with Fusarium verticillioides. This harmful fungus produces fumonisins as secondary metabolites. These fumonisins can appear both free and hidden form in planta. The hidden form is usually bound covalently to cereal starch. From the hidden fumonisins...

Ključne riječi: Fumonisin, fumonisin metabolites, DFT, electron density surfaces, structural optimization

The effect of transition from EUROP 5-point scale to 15-point scale beef carcass classification on carcass distribution of young slaughtered bulls in Slovenia

Autori: Žgur, S., Čepon, M.

DOI: 10.18047/poljo.21.1.sup.49

In 2007, the EUROP 15-point scale of carcass conformation and fatness classification system was introduced in Slovenia and replaced existing 5-point scale. Data (carcass weight, carcass conformation and fatness) from Slovenian commercial slaughterhouses were collected from January 2005 to December...

Ključne riječi: EUROP-carcass classification, distribution, young bulls, Slovenia

Detection of pig meat, liver and lard in beef by CE-SSCP

Autori: Simon, Á., Tisza, Á., Csikós Á, Jávor, A., Czeglédi, L.

DOI: 10.18047/poljo.21.1.sup.50

Identification of animal species from foodstuffs is important in order to identify frauds to prevent substitutions and admixtures in animal products. In this paper we demonstrate the identification of cattle and pig species by polymerase chain reaction (PCR) capillary electrophoresis - single...

Ključne riječi: CE-SSCP, mtDNA, species identification, 12S rRNA

The effect of olive by products and their extracts on antioxidative status of laying hens and oxidative stability of eggs enriched with n-3 fatty acids

Autori: Rezar, V., Levart, A., Salobir, J.

DOI: 10.18047/poljo.21.1.sup.51

The aim of the study was to assess the effects olive leaves, pulp and their extract supplementation on performance, antioxidant status and oxidative stability of eggs. Oxidative stress was induced by the addition of 6% linseed oil in the feed. 94 individually caged laying hens, 40 weeks old, were...

Ključne riječi: laying hens, nutrition, olive leaves, olive pulp, egg, oxidative stability

Economic sustainability of the local dual-purpose cattle

Autori: Krupová, Z., Krupa, E., Michaličková, M., Zavadilová, L., Kadlečík, O.

DOI: 10.18047/poljo.21.1.sup.52

Base economic characteristics (total revenues, total costs, profit and profitability ratio) of the Slovak Pinzgau breed were calculated in this study. Under the actual production and economic conditions of the breed, production system is operated with loss (-457 € per cow and per year) and...

Ključne riječi: Slovak Pinzgau, economic sustainability, health traits, optimisation

Quantitative aspects of coat color in old Kladruber Black Horses

Autori: Hofmanová, B., Kohoutová, P., Vostrý, L., Vostrá Vydrová, H., Majzlík, I.

DOI: 10.18047/poljo.21.1.sup.53

Base economic characteristics (total revenues, total costs, profit and profitability ratio) of the Slovak Pinzgau breed were calculated in this study. Under the actual production and economic conditions of the breed, production system is operated with loss (-457 € per cow and per year) and...

Ključne riječi: Old Kladruber horse, black coat color, variability, heritability, Minolta Spectrophotometer

The acceptance of health related innovations in traditional meat products by Croatian consumers

Autori: Karolyi, D., Cerjak, M.

DOI: 10.18047/poljo.21.1.sup.54

The aim of this study was to examine Croatian consumers’ acceptance of health related innovations in traditional meat products. A face-to-face survey was conducted with a sample of 151 visitors of a specialized fair of traditional food products in Zagreb in 2013. The respondents were asked to...

Ključne riječi: traditional meat products, innovations, health, consumers, acceptance

Use of near infrared technology to predict fatty acid groups in commercial ground meat products

Autori: Ton, S., De Marchi, M., Manfrin, D., Meneghesso, M., Cassandro, M., Penasa, M.

DOI: 10.18047/poljo.21.1.sup.55

Near infrared transmittance (NIT, 850 to 1048 nm) spectroscopy was used to predict groups of fatty acids (FA), namely saturated FA (SFA), monounsaturated FA (MUFA) and polyunsaturated FA (PUFA), in commercial ground meat samples aiming to develope a fast and reliable method for their determination...

Ključne riječi: fatty acid, ground meat, infrared spectroscopy

Milk coagulation properties of cattle breeds reared in Alpine area

Autori: Visentin, G., Penasa, M., Gottardo, P., Niero, G., Isaia, M., Cassandro, M., De Marchi, M

DOI: 10.18047/poljo.21.1.sup.56

The aim of the present study was to apply mid-infrared spectroscopy prediction models developed for milk coagulation properties (MCP) to a spectral dataset of 123,240 records collected over a 2-year period in the Alpine area, and to investigate sources of variation of the predicted MCP. Mixed...

Ključne riječi: mid-infrared spectroscopy, milk quality, local breeds