79 research outputs found
Mjerenje kreativnosti u metodici likovne kulture
In the contemporary society, creativity is one of the most desirable abilities which an individual can possess in all the fields of human activity. On the other hand, educational policy and national curriculums marginalize the importance of art subjects in most countries in the world, while the advantage is given to STEM disciplines (science, technology, engineering, mathematics). Although creativity, according to many educational standards, is one of the key abilities, in teaching practice routine activities are still valued more than creative ones. However, it is the art subjects which develop creativity (constructive) potential within an individual, although this also heavily depends on a teacher/professor, on his/her methodological approach and abilities within the scope of professional activity. Therefore, we conducted empirical research in Visual Arts Teaching Methodology training and non-training primary schools. We expected that we would foster studentsā development of creativity through regular collaboration with university, problem-based learning of art and artistic language, inventiveness in creating art assignments and through increasing public awareness of harmfulness of stereotypical artistic expression. Among a large number of verified tests of creativity, Urban-Jellen test āThe Test for Creative Thinking - Drawing Production (TCT-DP)ā, which is based on the activity of drawing, was selected and used in this study. We wanted to know whether there was a statistically significant difference between training and non-training schools in students\u27 performance on the test used to examine the level of creativity. The level of statistically significant difference between the control group and the experimental group was determined by a chi-squared test. The research has been carried out in elementary schools in the area of the city of Zagreb, on the sample that included the students of fourth and eighth grade. The results of the research indicate that there is a possible influence of collaboration between the mentors and university professors and students of teacher-training college within the scope of Visual Arts Teaching Methodology course on students\u27 creativity.U suvremenom je druÅ”tvu kreativnost jedna od najpoželjnijih sposobnosti koju pojedinac posjeduje u svim podruÄjima ljudskog djelovanja. S druge strane, obrazovna politika i nacionalni kurikuli u veÄini zemalja svijeta umjetniÄke predmete marginaliziraju po važnosti, a prednost se daje STEM (engl. science, technology, engineering, mathematics) disciplinama. Iako je, prema mnogim obrazovnim standardima, kreativnost jedna od kljuÄnih kompetencija u nastavniÄkoj praksi, i dalje se vrednuju rutinske viÅ”e nego kreativne aktivnosti. Upravo umjetniÄki predmeti u obrazovanju razvijaju u pojedincu kreativni (stvaralaÄki) potencijal, ali to uvelike ovisi i o uÄitelju/nastavniku, o njegovu metodiÄkom pristupu i kompetencijama u okviru profesionalnog djelovanja. Stoga smo proveli empirijsko istraživanje u mentorskim (za Metodiku likovne kulture) i nementorskim osnovnim Å”kolama. OÄekivalo se da Äe se redovitom suradnjom s fakultetom, putem likovnojeziÄne problemske nastav, inventivnosti u osmiÅ”ljavanju likovnih zadataka i osvjeÅ”tavanjem problematike Å”tetnosti stereotipnog likovnog izražavanja utjecati na razvoj kreativnosti kod uÄenika. IzmeÄu veÄeg broja provjerenih testova kreativnosti, upotrijebljen je Urban - Jellen āThe Test for Creative Thinking - Drawing Production (TCT-DP)ā, koji se temelji na crtaÄkoj aktivnosti. Zanimalo nas je postoji li statistiÄki znaÄajna razlika izmeÄu mentorskih i nementorskih Å”kola u rjeÅ”avanju testa kojim se ispituje stupanj kreativnosti. Stupanj znaÄajnosti razlike izmeÄu kontrolne i eksperimentalne skupine statistiÄki je utvrÄen hi-kvadrat testom. Istraživanje je provedeno u osnovnim Å”kolama na podruÄju Grada Zagreba, na uzorku koji je obuhvaÄao uÄenike Äetvrtih i osmih razreda. Rezultati istraživanja ukazuju na moguÄ utjecaj suradnje uÄitelja mentora sa sveuÄiliÅ”nim nastavnicima i studentima uÄiteljskih studija u okviru Metodike likovne kulture na kreativnost uÄenika
Seroprevalencija i moguÄi riziÄni Äimbenici za zarazu nametnikom Neospora caninum u mlijeÄnih goveda u Hrvatskoj
Neospora caninum, a cyst forming coccidian parasite, is an important cause of abortion in cattle worldwide. The present work aims to update knowledge of the presence of Neospora in cattle from Croatia. The survey was carried out on dairy cows in the Bjelovar-Bilogora County in northwest Croatia (2652 km2). The cows were selected by simple randomization from county dairy producer records. Cows were tested for the presence of N. caninum antibodies with the Neospora-Ab iscom enzyme-linked immunoassay kit (SVANOVIR). N. caninum antibodies were detected in 23 from 395 (5.6%, confifi dence interval (CI); CI 95%; 3.5 to 8.1) lactating cows. Epidemiological studies of potential risk factors, such as the presence of a dog, cat, swine, free range poultry and management practices, such as silage processing and pasture practising showed that none of these factors was associated with N. caninum antibodies. Seropositivity of cows was associated to abortion (odds ratio (OR);
OR = 8.307, P = 0.002) and to purchasing of replacement animals from other sources (OR = 5.27, P = 0.0002). A strong correlation was also found between antibodies, history of abortion and origin (imported animals) of heifers or cows (OR = 5.52; P = 0.001).Neospora caninum, cistotvorna kokcidija, znaÄajan je uzroÄnik pobaÄaja u goveda u Äitavom svijetu. U radu su prikazani novi podatci o prisutnosti protutijela za neosporu u goveda u Hrvatskoj. Istraživanje je provedeno na mlijeÄnim kravama na podruÄju Bjelovarsko-bilogorske županije (2652 km2). Životinje su odabrane metodom sluÄajnoga odabira iz registra proizvoÄaÄa. Krave su bile pretražene na prisutnost protutijela za N. caninum imunoenzimnim testom (SVANOVIR). Protutijela su bila dokazana u 23 od 395 pretraženih krava u laktaciji (5,6%, interval povjerenja (CI) 95%: 3,5 do 8,1). EpidemioloÅ”ko istraživanje s ciljem odreÄivanja moguÄih riziÄnih Äimbenika kao Å”to su prisutnost pasa, maÄaka, svinja, slobodno držane peradi te menadžment farme koji ukljuÄuje pripremu i skladiÅ”tenje silaže te naÄine ispaÅ”e pokazala su da niti jedan od prije navedenih Äimbenika nije povezan s prisutnoÅ”Äu protutijela protiv N. caninum. Seropozitivnost krava bila je povezana s pobaÄajima (odds (OR) = 8,307, P = 0,002) i s uvoÄenjem u stado životinja iz drugih stada (OR = 5.27, P = 0.0002). TakoÄer je dokazana snažna povezanost izmeÄu seropozitivnosti, pobaÄaja i podrijetla (uvezene životinje) junica ili krava (OR = 5,52; P = 0,001
Analiza florfenikola u plazmi svinja primjenom validirane PPT-HPLC-DAD metode
High performance liquid chromatography (HPLC) has proven to be an effective tool for examining the disposition kinetics of florfenicol (FF), a synthetic broad-spectrum antibiotic used to treat infectious diseases in veterinary medicine. Modification and optimisation of the protein precipitation (PPT) sample preparation procedure and HPLC with diode array detector (DAD) instrumental method were carried out to ensure conditions suitable for FF analyses in pig plasma samples. Stable supernatants with good plasma mean recoveries of FF (99.8% Ā± 0.7%RSD) were achieved using 1% v/v phosphoric acid solution in methanol and 10% w/v sodium chloride in aqueous solution. The PPT-HPLCDAD methodās detection limit of 0.004 Ī¼g/mL and quantification limit of 0.013 Ī¼g/mL provides high sensitivity for analyses of FF in plasma samples. In addition, the optimisation of method conditions resulted in shorter extraction and analysis time and less solvent consumption, which stresses the sustainability of this method in analytical chemistry. The optimised and validated PPT-HPLC-DAD method was applied in a comparative study of FF in pig plasma after administration of veterinary medicinal products. The study was conducted on fattening pigs following repeated intramuscular administration of two similar solutions for injection at a dose of 20 mg FF/kg bodyweight (test groups 1 and 2). The solutions for injection contained the same FF concentration, i.e., 300 mg/mL, but differed in excipients. The aim was to examine the influence of administrated solutions for injection on the extent of exposure to FF in pig plasma. The dynamics of kinetic profiles of FF in pig plasma from both treatments correspond to the FF kinetic profiles published in similar studies. However, differences were observed in the concentrations of FF, which were constant throughout the study, and statistical differences between the test groups were confirmed (P<0.05). Though these findings suggest the possible influence of excipients, a full comprehensive conclusion on the influence of administrated solutions for injection on FF exposure in pig plasma requires additional research.TekuÄinska se kromatografija visoke djelotvornosti (HPLC, engl. High-Performance Liquid Chromatography) pokazala uÄinkovitim alatom za ispitivanje kinetike florfenikola (FF), sintetitÄkog antibiotika Å”irokog spektra koji se u veterinarskoj medicini koristi za lijeÄenje zaraznih bolesti. Modifikacija i optimizacija postupka proÄiÅ”Äavanja uzoraka krvi tehnikom precipitacije proteina (PPT) i instrumentalne metode sustava HPLC-a uz detekciju UV-detektorom s nizom fotodioda (DAD, engl. Diode Array Detector) provedene su sa svrhom postizanja pouzdane analitiÄke metode za odreÄivanje FF-a u plazmi svinja. PPT postupkom priprave uzoraka dodavanjem 1% otopine fosforne kiseline u metanolu (V/V) i 10% vodene otopine natrijevog klorida (m/V) dobiveni su stabilni nadtalozi s dobrim srednjim analitiÄkim povratima FF-a iz plazme (99,8%Ā±0,7%RSD). Postignuta granica detekcije PPT-HPLC-DAD metode od
0,004 Ī¼g/mL i granica odreÄivanja od 0,013 Ī¼g/mL omoguÄuju dobru osjetljivost odreÄivanja FF-a u plazmi; optimizacijom uvjeta metode skraÄeno je vrijeme ekstrakcije i analize te je smanjena koliÄina potroÅ”nje otapala Äime je postignuta održivost metode u analitiÄkoj kemiji. Primjenom optimirane i validirane PPT-HPLC-DAD metode provedena TekuÄinska se kromatografija visoke djelotvornosti (HPLC, engl. High-Performance Liquid Chromatography) pokazala uÄinkovitim alatom za ispitivanje kinetike florfenikola (FF), sintetitÄkog antibiotika Å”irokog spektra koji se u veterinarskoj medicini koristi za lijeÄenje zaraznih bolesti. Modifikacija i optimizacija postupka proÄiÅ”Äavanja uzoraka krvi tehnikom precipitacije proteina(PPT) i instrumentalne metode sustava HPLC-auz detekciju UV-detektorom s nizom fotodioda (DAD, engl. Diode Array Detector) provedene su sa svrhom postizanja pouzdane analitiÄke metode za odreÄivanje FF-a u plazmi svinja. PPT postupkom priprave uzoraka dodavanjem 1% otopine fosforne kiseline u metanolu (V/V) i 10% vodene otopine natrijevog klorida (m/V) dobiveni su stabilni nadtalozi s dobrim srednjim analitiÄkim povratima FF-a iz plazme (99,8%Ā±0,7%RSD). Postignuta granica detekcije PPT-HPLC-DAD metode od 0,004 Ī¼g/mL i granica odreÄivanja od 0,013 Ī¼g/mL omoguÄuju dobru osjetljivost odreÄivanja FF-a u plazmi; optimizacijom uvjeta metode skraÄeno je vrijeme ekstrakcije i analize te je smanjena koliÄina potroÅ”nje otapala Äime je postignuta održivost metode u analitiÄkoj kemiji. Primjenom optimirane i validirane PPT-HPLC-DAD metode provedena FF-a u plazmi svinja
KliniÄke i epizootske znaÄajke mastitisa krava uzrokovanih bakterijom Staphylococcus aureus s osvrtom na meticilin-rezistentne sojeve
Mastitis represents one of the most important problems in modern dairy production from the economic, diagnostic and public-health related point of view. Economic significance of the mastitis is related to the decreased milk production, lower quality of the milk, veterinary expenses and withdrawing of the milk due to the antibiotic treatment. Detection of mastitis is often complicated due to the subclinical nature of the mammary infection in which the increase of the somatic cells is only sign of the infection. Public health importance rises from the possibility of the transmission of zoonoses as well as due to the residue of the antibiotics secreted by milk. Staphylococcus aureus is the most commonly isolated udder pathogen around the world. Since it is contagious, critical time for spreading among the cows in a herd is the milking time. Observed prevalence of S. aureus mammary gland infection varies from 2% to 50% even above and depends on the milking hygiene. Clinical manifestations of the S. aureus mastitis may vary from mild cases with elevated somatic cells only to the gangrenous cases with lethal exit. Methicillin-resistant staphylococci as mastitis pathogens were first identified in the 1972. During the last decade methicillin-resistant Staphylococcus aureus (MRSA) was identified as a mastitis pathogen in few occasions in Belgium, Poland, Hungary and Germany. Spreading of the MRSA between animals and humans is documented. Although the prevalence of mammary gland infection caused by MRSA is low, there is thread of spreading of the MRSA among herds by animal trade. Spreading within the herd is enabled with large number of possible contacts between cows by milkers and milking equipment.U suvremenom mlijeÄnom govedarstvu mastitis je jedan od najvažnijih problema u ekonomskom, dijagnostiÄkom i javnozdravstvenom smislu. Ekonomsko znaÄenje mastitisa ogleda se u smanjenoj proizvodnji mlijeka, loÅ”ijoj kakvoÄi, troÅ”kovima lijeÄenja i bacanju mlijeka. Otkrivanje mastitisa Äesto je otežano zbog supkliniÄke naravi procesa, pri Äemu je poveÄanje broja somatskih stanica jedini znak upale. Mlijekom se mogu prenositi i uzroÄnici bolesti ljudi, a opasnost za ljudsko zdravlje predstavljaju i rezidue antibiotika i lijekova koji se izluÄuju mlijekom. Bakterija S. aureus najÄeÅ”Äi je uzroÄnik mastitisa krava kod nas i u svijetu. UzroÄnik je svrstan u skupinu kontagioznih uzroÄnika koji se u stadu Å”iri uglavnom za vrijeme mužnje. Prevalencija infekcije uzrokovane tom bakterijom kreÄe se od 2 do viÅ”e od 50% i u izravnoj je vezi s razinom higijene pri mužnji. KliniÄko oÄitovanje u Å”irokom je rasponu od sasvim blagih, s poveÄanim brojem somatskih stanica kao jedinim pokazateljem infekcije, do gangrenoznih oblika sa smrtnim ishodom. Jednom inficirana životinja može izluÄivati uzroÄnika tijekom viÅ”e laktacija ako infekcija prijeÄe u kroniÄni oblik, pri Äemu povremeno mogu nastupiti i kliniÄke epizode praÄene lokalnim znacima upale.
Meticilin-rezistentni stafilokoki kao uzroÄnici mastitisa krava prvi su put potvrÄeni 1972. godine. U stadima mlijeÄnih krava potvrÄeni su tijekom nekoliko posljednjih godina u viÅ”e navrata u Belgiji, Poljskoj, MaÄarskoj i NjemaÄkoj, a dokazan je i sluÄaj prijenosa na ljude. Premda se radi o niskoj prevalenciji meÄu stadima, postoji bojazan da bi se trgovinom životinjama mogao proÅ”iriti. Å irenje unutar stada omoguÄeno je velikim brojem kontakata izmeÄu krava preko muzaÄa i opreme za mužnju
Functional and technical condition and hygiene of teat cup clusters in minifarm dairies
ProuÄavano je funkcionalno-tehniÄko stanje i higijena muznih ureÄaja u 18 minifarmi muznih krava i 73 minifarme koza. Kontrolirano je 10 parametara funkcionalno-tehniÄke ispravnosti (prema DIN 11845) na 15 polustacionarnih muznih ureÄaja, 54 pokretna ureÄaja s pulzatorom i 22 pokretna ureÄaja bez pulzatora. NajÄeÅ”Äe su zastupljeni ureÄaji firmi: VITREX, WESTFALIA, ALFA-LAVAL, BELJE i NATIONAL. Provjerom funkcionalno-tehniÄke ispravnosti ustanovljeno je 32 (35,2%) ispravnih muznih ureÄaja te 59 (64,8%) neispravnih ureÄaja, a najÄeÅ”Äi kvarovi odnosili su se na: a) pokretne ureÄaje bez pulzatora: - manjkavost muznih kanti i sisnih ÄaÅ”ki (72,7%), - neispravnost pogonskog vakuumetra i pogonskog vakuuma (63,6%);b) pokretne ureÄaje sa pulzatorom: - nedovoljan rezervni protok zraka vakuum crpke (48,1%);- nedovoljna snaga vakuum crpke (42,6%); - neispravan pogonski vakuumetar (29,6%);- neadekvatan pogonski vakuum (31,5%); c) polustacionarne muzjne ureÄaje: - neispravnost muznih prikljuÄaka i sisnih ÄaÅ”ki (53,6%), - neadekvatan pogonski vakuum (46,7%), - neispravnost pulsatora (33,3%). ÄistoÄa muznih ureÄaja odreÄena je mikrobioloÅ”kom pretragom briseva muznih kanti te provjerom broja bakterija u 1 ml ispirka sisnih ÄaÅ”ki. Obavljena je pretraga 19 briseva muznih kanti i 19 ispiraka sisnih ÄaÅ”ki. Higijensko stanje povrÅ”ina muznih kanti izraženo kao broj mikroorganizama po cm2 povrÅ”ine kretalo se u granicama <10/cm2 do 1.000.000/cm2, pri Äemu je kriterije higijenske ispravnosti zadovoljilo 10 (53%) uzoraka, a ostalih 9 (47%) nisu zadovoljili. Higijensko stanje sisnih ÄaÅ”ki izraženo brojem mikroorganizama po 1 ml ispirka sisne Äaske kretalo se u granicama 170 mikroorganizama po ml do 2.600.000/ml, pri Äemu su higijenske standarde zadovoljila svega 2 uzorka (10,5%) dok je 17 (89,5%) u veÄoj ili manjoj mjeri odstupalo od propisanih kriterija.Examination of functional and technical condition and hygiene of teat cup clusters in 18 minifarm cow dairies and 73 goat dairies. A total of 10 parameters were examined (DIN 11845) in 15 semistationary units, 54 mobile units with pulsator, and 22 mobile units without pulsator. Most units came from VITREX, WESTFALIA, ALFA-LAVAL, BELJE and NATIONAL. The examination showed 32 (35.2%) conforming and 59 (64.8%) nonconforming units. The most frequent failures were: a) mobile units without pulsator: - faulty milk cans and teat cups (72.7%), - faulty operating vacuum metre and operating vacuum (63.6%); b) mobile units with pulsator: - insufficient reserve airflow of vacuum pump (48.1%), - insufficient vacuum pump power (42.6%), - faulty operating vacuum metre (29.6%), - inadequate operating vacuum (31.5%);c) semistationary units: - faulty teat cup clusters and teat cups (31.5%), - inadequate operating vacuum (46.7%), - faulty pulsator (33.3%). Cleanness of the units was checked by means of microbiological examination of milk can swabs and checking of the number of bacteria in 1 ml of teat cups rinsings. Checking was performed on 19 milk can swabs and 19 teat cups rinsings. Hygienical condition of milk can surfaces, expressed as a number of microorganisms per square centimetre, was between <10/cm2 and 1.000.000/cm2, whereas hygienical criteria were met by 10 (53%) samples, while the remaining 9 (47%) failed to meet the criteria. The hygienical condition of teat cups, expressed as a number of microorganisms per 1 ml of teat cups rinsing, was between 170 and 2.600.000/ml, whereas hygienical standards were by only 2 samples (10.5%), while the remaining 17 samples (89.5%) to a greater or lesser extend deviated from the prescribed criteria
Antimikrobna osjetljivost bakterija Escherichia coli, Salmonella spp., Pasteurella multocida, Streptococcus suis i Actinobacillus pleuropneumoniae izdvojenih iz dijagnostiÄkih uzoraka iz velikih svinjogojskih farmi u Hrvatskoj
The disk diffusion method was employed to assess the sensitivity of 256 Escherichia (E.) coli, 42 Salmonella spp. and 62 Streptococcus (S.) suis isolates to 13 antimicrobials, and of 108 Pasteurella (P.) multocida and 44 Actinobacillus (A.) pleuropneumoniae isolates to 14 antimicrobials. All study isolates were obtained from diagnostic material collected at 8 large pig breeding farms in Croatia. E. coli isolates showed the highest rate of resistance to oxytetracycline, streptomycin and ampicillin (98%, 91% and 85% of isolates,
respectively), whereas 87% of the isolates were resistant to 4 or more antimicrobials. Salmonella spp. isolates were most sensitive to enrofloxacin and colistin (all isolates), whereas highest rate of resistance was recorded to oxytetracycline and streptomycin (86% and 67% of isolates, respectively). More than 90% of P. multocida isolates were sensitive to ampicillin, amoxicillin with clavulanic acid, cefotaxime, colistin, florfenicol and enrofloxacin, whereas the highest rate of resistance was observed to streptomycin and nalidixic acid (59% and 43%, respectively). S. suis isolates were most sensitive to cefotaxime and florfenicol (94% of isolates both), whereas the highest resistance was recorded to streptomycin (100%). All A. pleuropneumoniae isolates showed sensitivity to amoxicillin with clavulanic acid, cefotaxime, florfenicol and enrofloxacin, and more than 90% of these isolates were sensitive to penicillin G, ampicillin, colistin, gentamicin and spectinomycin, whereas the highest rate of resistance was recorded to nalidixic acid and streptomycin (59% and 36%, respectively). Sensitivity to all antimicrobials tested was recorded in 27% of A. pleuropneumoniae isolates, whereas 41% of these isolates were resistant to one, and 27% to 2-4 of the antimicrobials tested. Of the bacterial species included in the study, the highest rate of antimicrobial resistance included in the study, the highest rate of antimicrobial resistance was recorded in E. coli, and lowest rate in A. pleuropneumoniae isolates.Disk difuzijskom metodom istražena je osjetljivost 256 izolata Escherichia (E.) coli, 42 izolata Salmonella spp. i 62 izolata Streptococcus (S.) suis na 13 antimikrobnih lijekova, te 108 izolata Pasteurella (P.) multocida, i 44 izolata Actinobacillus (A.) pleuropneumoniae na 14 antimikrobnih lijekova. Svi su izolati bili izdvojeni iz dijagnostiÄkoga materijala s 8 velikih svinjogojskih farmi u Hrvatskoj. U E. coli najveÄi stupanj rezistencije utvrÄen je na oksitetraciklin (98% izolata), streptomicin (91% izolata) i ampicilin (85% izolata), te je 87% izolata bilo rezistentno na 4 i viÅ”e antimikrobnih lijekova. Izolati Salmonella spp. bili su najosjetljiviji na enrofloksacin i kolistin (svi izolati), a najveÄi postotak otpornosti utvrÄen je na oksiteraciklin (86%) i streptomicin (67%). ViÅ”e od 90% izolata P. multocida bilo je osjetljivo na ampicilin, amoksicilin s klavulanskom kiselinom, cefotaksim, kolistin, florfenikol i enrofloksacin. NajveÄa rezistencija bakterije P. multocida utvrÄena je na streptomicin (59%) i nalidiksiÄnu kiselinu (43%). Izolati vrste Streptococcus suis bili su najosjeljiviji na cefotaksim i florfenikol (94% osjetljivih izolata), a najveÄa rezistencija utvrÄena je na streptomicin (100%). Svi testirani testirani izolati vrste A. pleuropneumoniae bili su osjetljivi amoksicilin s klavulanskom kiselinom, cefotaksim, florfenikol i enrofloksacin, a viÅ”e od 90% izolata bilo je osjetljivo na penicilin G, ampicilin, kolistin, gentamicin i spektinomicin. NajveÄa rezistencija utvrÄena je na nalidiksiÄnu kiselinu (59%) i streptomicin (36%). Na sve testirane antimikrobne lijekove bilo je osjetljivo 27% izolata A. pleuropneumoniae, a 41% izolata bilo je rezistentno na jedan testirani antimikrobni lijek, dok je 27% izolata bilo otporno na 2 do 4 antimikrobna lijeka. Od testiranih bakterijskih vrsta najveÄi stupanj rezistencije imali su izolati E. coli, dok su izolati A. pleuropneumoniae imali najmanji stupanj rezistencije
The ihfluence od rainfall precipitation and air temperature on the reproducive efficiency od SolÄava-Jezerska sgeep in northwestern Croatia over seven consecutive years
Cilj istraživanja bio je odrediti utjecaj koliÄine oborina i temperature zraka na rasplodnu uÄinkovitost solÄavsko-jezerske pasmine u sjeverozapadnom dijelu Hrvatske tijekom sedam uzastopnih godina (2013. ā 2019.). Zabilježeno je 2026 ovaca koje su se parile, od kojih je 1876 uspjeÅ”no koncipiralo i ojanjilo 2321 janjadi. ProsjeÄna veliÄina legla bila je 1,23. ProsjeÄna plodnost tijekom istraživanja iznosila je 92,31 %. Distribucija janjenja nije bila ravnomjerno rasporeÄena tijekom godine jer se tijekom zime i proljeÄa ojanjilo 75 % svih ovaca (zima 52 %; proljeÄe 23 %; ljeto 8 % i jesen 17 %). Spolna aktivnost najniža je bila od kraja ožujka do lipnja, dok je njezin vrhunac bio od kraja srpnja do listopada. Utvrdili smo pozitivnu ili negativnu korelaciju (P < 0,0001; Kruskall Wallis) izmeÄu temperature zraka i koliÄine oborina s odreÄenim reproduktivnim svojstvima (broj gravidnih i negravidnih ovaca). Možemo pretpostaviti da temperatura zraka i koliÄina oborina tijekom razliÄitih mjeseci ili godiÅ”njih doba utjeÄu na rasplodnu uÄinkovitost solÄavsko-jezerskih ovaca u sjeverozapadnoj Hrvatskoj.The study aims was to determine the influence of rainfall precipitation and air temperature on the reproductive efficiency of the Jezerska-SolÄava breed in NW Croatia for 7 consecutive years (2013-2019). A total of 2026 sheep were mated, of which 1821 successfully conceived and 2321 lambs were born. The average litter size was 1.23. The average fertility during the study was 92.31%. The distribution of lambs was not equally distributed throughout the year because 75% of all sheep were born during winter and spring (winter 52%; spring 23%; summer 8% and autumn 17%). Sexual activity was the lowest from the end of March to June, while the peak of sexual activity was from the end of July to October. There was a positive or negative correlation (p <0.0001 (Kruskall Wallis)) between air temperature and precipitation and specific reproductive traits (number of pregnant and non-pregnant sheep). We can assume that air temperature and rainfall precipitation during different months or seasons affect the reproductive efficiency of Jezerska- SolÄava sheep in northwestern Croatia
The ihfluence od rainfall precipitation and air temperature on the reproducive efficiency od SolÄava-Jezerska sgeep in northwestern Croatia over seven consecutive years
Cilj istraživanja bio je odrediti utjecaj koliÄine oborina i temperature zraka na rasplodnu uÄinkovitost solÄavsko-jezerske pasmine u sjeverozapadnom dijelu Hrvatske tijekom sedam uzastopnih godina (2013. ā 2019.). Zabilježeno je 2026 ovaca koje su se parile, od kojih je 1876 uspjeÅ”no koncipiralo i ojanjilo 2321 janjadi. ProsjeÄna veliÄina legla bila je 1,23. ProsjeÄna plodnost tijekom istraživanja iznosila je 92,31 %. Distribucija janjenja nije bila ravnomjerno rasporeÄena tijekom godine jer se tijekom zime i proljeÄa ojanjilo 75 % svih ovaca (zima 52 %; proljeÄe 23 %; ljeto 8 % i jesen 17 %). Spolna aktivnost najniža je bila od kraja ožujka do lipnja, dok je njezin vrhunac bio od kraja srpnja do listopada. Utvrdili smo pozitivnu ili negativnu korelaciju (P < 0,0001; Kruskall Wallis) izmeÄu temperature zraka i koliÄine oborina s odreÄenim reproduktivnim svojstvima (broj gravidnih i negravidnih ovaca). Možemo pretpostaviti da temperatura zraka i koliÄina oborina tijekom razliÄitih mjeseci ili godiÅ”njih doba utjeÄu na rasplodnu uÄinkovitost solÄavsko-jezerskih ovaca u sjeverozapadnoj Hrvatskoj.The study aims was to determine the influence of rainfall precipitation and air temperature on the reproductive efficiency of the Jezerska-SolÄava breed in NW Croatia for 7 consecutive years (2013-2019). A total of 2026 sheep were mated, of which 1821 successfully conceived and 2321 lambs were born. The average litter size was 1.23. The average fertility during the study was 92.31%. The distribution of lambs was not equally distributed throughout the year because 75% of all sheep were born during winter and spring (winter 52%; spring 23%; summer 8% and autumn 17%). Sexual activity was the lowest from the end of March to June, while the peak of sexual activity was from the end of July to October. There was a positive or negative correlation (p <0.0001 (Kruskall Wallis)) between air temperature and precipitation and specific reproductive traits (number of pregnant and non-pregnant sheep). We can assume that air temperature and rainfall precipitation during different months or seasons affect the reproductive efficiency of Jezerska- SolÄava sheep in northwestern Croatia
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