Acta Agraria Kaposváriensis最新文献

{"title":"In vivo classification of two closely related species of mice, mound-building mouse (Mus spicilegus) and house mouse (Mus musculus)","authors":"B. Bárdos, Bianka Kovács, I. Nagy, V. Altbäcker","doi":"10.31914/aak.2656","DOIUrl":"https://doi.org/10.31914/aak.2656","url":null,"abstract":"Correct identification of similar, closely related species with overlapping distribution is a crucial point in field biology. In small mammal studies, species identification is particularly problematic in population studies using trapping where live animals need to be identified. The aim of our research was to develop a method making the classification of the two Hungarian mouse species, mound-building mouse (Mus spicilegus) and house mouse (Mus musculus) possible based on morphometric characters. The basis to obtain reference data was the captive populations of caged animals housed in our laboratory where the true species classification was known for every animal. Body weight, body length, tail length, and tail diameter were measured for 56-56 individuals from both species. From these measurements the ratio of the body length/tail length was also calculated. Besides, the sex and age of these animals were also recorded. Data analysis consisted of stepwise discriminant procedure and discriminant analysis, respectively. The stepwise discriminant procedure restricted the morphometric characters to the ratio of the body length/tail length and tail diameter. Performing the discriminant analysis to these body measures a perfect classification was obtained even using cross-validation. Thus, applying the obtained discriminant function to the classification of any live trapped mice is feasible.","PeriodicalId":403816,"journal":{"name":"Acta Agraria Kaposváriensis","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129657865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Maternal cortisol level around conception is associated with offspring sex ratio in captive European wild rabbit (Oryctolagus cuniculus)","authors":"Ildikó Benedek, V. Altbäcker, A. Zsolnai, T. Molnár","doi":"10.31914/aak.2793","DOIUrl":"https://doi.org/10.31914/aak.2793","url":null,"abstract":"The sex ratio of the offspring at birth is usually 1: 1 established by natural selection. The sex allocation model predicts that if parents have adequate resources, they would benefit from differentially allocating maternal investment to that sex having higher fittness under the particular environmental conditions. However, little is known about what mechanisms would result in biased sex ratio. One such mechanism could be the interaction of of stress reactivity and progesterone levels in the mothers around conception. In the present investigation the fecal cortisol and progesterone levels at the day of conception were measured in fifteen European wild rabbit does kept in cages. The does were clustered to low and high cortisol response groups and the sex ratio of their progeny was determined. We found a significant correlation between the progesterone levels of mothers and their stress status measured at the mating. This correlation was also reflected in the sex ratio bias in their litters. Even though the litter size was not different, we found higher progesterone levels and more female offspring in the does with higher cortisol levels indicating that maternal status around conception may affect the litter sex ratio.","PeriodicalId":403816,"journal":{"name":"Acta Agraria Kaposváriensis","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116121116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Examination of the evapotranspiration dynamics of maize in Thornthwaite-Mather type compensation evapotranspirometer","authors":"Ariel Tóth, G. Soós, Szabina Simon, Brigitta Simon-Gáspár","doi":"10.31914/aak.2851","DOIUrl":"https://doi.org/10.31914/aak.2851","url":null,"abstract":"According to the data provision of the National Meteorological Service, since the early 1980’s an intense warming has begun and it is also reflected in domestic observations. In Hungary, just as in other Central European countries, the extremes of weather events are becoming more common. As a main crop, maize (sweet corn) has an outstanding national and global significance. Certainly, global warming and changes in water supply will harmfully affect the cultivability of maize too. Water stress reduces the leaf surface, therefore because of the less captured photosyntetically active radiation, biomass production and yields will be reduced. Weeds with a wider tolerance range than crops may also become increasingly dangerous competitors in field crop production because of their wide tolerance range, fertility and strong adaptability to changing climate- and precipitation conditions. In this research the effect of climate change on the evapotranspiration of maize was investigated at the Agrometeorological Research Station of MATE Georgikon Campus in Keszthely, between 21 May 2021 and 1 September 2021 in Thornthwaite-Mather type compensation evapotranspirometer. The aim of the study was to assess the main characteristics (like leaf area index, daily evapotranspiration, and yield) of sweetcorn under optimal water supply conditions. Furthermore it was also an aim to determine how weeding affects plant characteristics so half of the treatment (1 vessel of the evapotranspirometer) was kept weed-free, while the other half was exposed to natural weeding. In terms of results, positive relation between temperature and evapotranspiration was found and it has been established, that maximum temperature has a greater effect on evapotranspiration, than daily mean temperature. In case of yield indicators, the negative effect of weeding was statistically detectable and it was also pointed out, that the presence of weeds can negatively affect the quantity of crops. The results of the study was compared to a number of other researches on the subject, and it was concluded that the negative consequences of climate change, especially the increasing frequency of drought-hot periods could pose a major threat to successful maize production in the future.","PeriodicalId":403816,"journal":{"name":"Acta Agraria Kaposváriensis","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126765306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination of Fusarium mycotoxin exposure in humans based on urine samples, using One Health approach","authors":"Tamás Schieszl, J. Szabó-Fodor, M. Kovács","doi":"10.31914/aak.2601","DOIUrl":"https://doi.org/10.31914/aak.2601","url":null,"abstract":"The role of mycotoxins has been recognized in the etiology of a number of human diseases. Therefore, biomonitoring of human mycotoxin exposure is very important. One of the possible ways to do this is the urinary biomarker-based exposure determination. Over the past few decades, such studies have been conducted in many countries around the world on volunteers of different ages, genders, and eating habits, although these studies do not always use the same measurement, and calculation methods. This review focuses on the most important fusarium mycotoxins (deoxynivalenol (DON), zearalenone (ZEA), fumonisins (FUM), T-2, and HT-2 toxins). Because of the presence of mycotoxins in the environment-feed-food chain, One Health strategies should be adopted for the prevention of their exposure.","PeriodicalId":403816,"journal":{"name":"Acta Agraria Kaposváriensis","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130211109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Automatic method for determining the number of lumbar and thoracic vertebrae in rabbits using Computer Tomography images","authors":"Á. Csóka, Ö. Petneházy, Dániel Fajtai, Máté Sándor, Szilvia Orsi-Gibicsár, T. Donkó","doi":"10.31914/aak.2626","DOIUrl":"https://doi.org/10.31914/aak.2626","url":null,"abstract":"There are several studies dealing with the phenotypic variance of the vertebral number in the spinal column of rabbits. According to the literature the number of thoracic and lumbar vertebrae varies between 11-13 and 6-8, respectively. The length of the m. longissimus dorsi (MLD) - a valuable meat part of rabbits - is determined by the length of the vertebral column therefore the number of vertebrae may have economic importance in breeding. The aim of this study was to create an automatic counter using computed tomography (CT) images. In the first step, a skeleton binary mask was created using the radiodensity range between 120 and 3071 HU, then the lumbar and thoracic regions were processed by two different methods. The lumbar part was evaluated based on the frequency of the bone voxels along the axial plane. The number of thoracic vertebrae was determined from the number of ribs. The left and right ribs were processed separately. The developed method was tested on CT examination of 40 Hycole rabbits compared to manual evaluation. The results of the automatic algorithm had few errors: in one case in the lumbar region (2.5%) and in 3 cases in the thoracic region (5%). The automated evaluation process takes a few seconds per individual and then the program visualizes the results on a graph. The incorrectly evaluated rabbits are recognizable on graphs and they can be easily corrected with a minimal time investment.","PeriodicalId":403816,"journal":{"name":"Acta Agraria Kaposváriensis","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131967057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The in vivo crude protein digestibility of soybean species cultivated in Hungary","authors":"Gergő Sudár, A. Horváth, J. Jakab, R. Pósa, V. Halas, J. Tossenberger","doi":"10.31914/aak.2644","DOIUrl":"https://doi.org/10.31914/aak.2644","url":null,"abstract":"The purpose of the trial was to use the mobile nylon bag technique to determine the crude protein digestibility and calculate the digestible protein yield of soybean varieties cultivated in Hungary. The trial was carried out with 10, double cannulated (duodenal- and PVTC-cannula) hybrid barrows with initial live weights of 40±3.5 kg. The experimental basal diets were formulated on a corn-wheat-barley-soybean basis according to the requierement of growing pigs (Tybirk, 2015). A total of 20 soybean varieties were tested in this experiment. After simulating gastric digestion the nylon bags were inserted into the duodenum of ten barrows through simple duodenal T-cannulae. Ten bags were administered to each pig daily. A total of 200 (10 samples/soybean variety) bags were inserted over a 4-day period. The mean, standard deviation, minimum and maximum values of the crude protein digestibility of soybean samples were calculated. The protein yields per hectare according to the crop yield and the protein content values and also the digestible protein yield values were calculated. To examine the relationship between crop yield and crude protein yield and also between crop yield and digestible crude protein yield regression analysis were used. The overall results of this experiment indicate that the average crude protein digestibility of the tested soybean varieties was 76.0%, with an absolute difference of 17.3% between the best and the least digestible varieties. ES Mentor variety reached the best digestible crude protein yield, with 1305.4 kg/ha. The variety with the lowest digestible crude protein yield was Boglár, with 752.3 kg/ha. The difference in digestible crude protein yield between these two varieties was 173.5%. In the correlation analysis between digestible crude protein content and yield for soybean varieties our results show that there is no correlation between the two factors. However, Aires, Prestopro, and ES Mentor should be highlighted among the varieties with above trend line results, as they have the best yield (4020 kg/ha; 4100 kg/ha, 4510 kg/ha) and digestible crude protein content (31%, 30.3%, and 28.9%). ES Mentor produced the fourth best digestible crude protein content (28.9%) with the best yield (4510 kg/ha).","PeriodicalId":403816,"journal":{"name":"Acta Agraria Kaposváriensis","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116984645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on performance traits of laying hens with crossing the White Leghorn and the Rhode Island breeds","authors":"Erik Garamvölgyi, Z. Sütő","doi":"10.31914/aak.2437","DOIUrl":"https://doi.org/10.31914/aak.2437","url":null,"abstract":"The current steady increase in the global population is accompanied by a dramatic growth in demand for food, whose satisfaction relies heavily on animal protein sources. Poultry farming is already mankind’s key source of protein. Changes in consumer habits combined with the negative impacts of climate change are posing new challenges to poultry breeding companies today. Certain traits properties relating to egg production among offspring groups resulting from the crossing of the White Leghorn and the Rhode Island breeds show improvements relative to the corresponding properties of pure-bred offspring. This literature review is aimed at summing up experiments focusing on White Leghorn and Rhode Island crosses in terms of the main traits properties relating to egg production. Experiments involving the crossing of the White Leghorn and Rhode Island breeds tend to occur mainly during pure-bred poultry breeding. Studies discussing the performance of groups of offspring of White Leghorn (WL) and Rhode Island (RI) breeds, without analysing physiological types of experiments, have been few and far between in the past 20 years. Most of the few such studies originate from countries of the third world focusing in most cases on matters of feeding. This is explained, for the most part, by the fact that in the current period of modern poultry farming, only the world’s top breeding companies are in possession of high performance Leghorn and Rhode lines and they seldom ever publish scientific papers allowing glimpse into breeders’ development or strategic activities of breeders.","PeriodicalId":403816,"journal":{"name":"Acta Agraria Kaposváriensis","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114307685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of parity number on the growth performance of piglets around weaning","authors":"Henrietta Nagyné Kiszlinger, A. Horváth","doi":"10.31914/aak.2625","DOIUrl":"https://doi.org/10.31914/aak.2625","url":null,"abstract":"In this study, authors examined the effects of parity number on piglet weight gain around weaning. The research was carried out on a Hunagrian pig farm on the litters of 3 first parity (P1) and 3 second parity (P2) Landrace x Large White sows. The traits examined were individual weight, weight gain, and number of deaths. A total of 90 piglets were individually weighed 9 times. Thus, measurements were taken at 1 day of age, at 10, 20, 26, 28, 29, 30, 36, and 47 days of age. Weaning occured on the 28th day. The difference in weight can be seen as early as 1 day of age between the piglets of the two groups (290 grams). The 1-day average weight of piglets in the P1 group was 1.20 kg, and the average weight of piglets of P2 sows was 1.49 kg (P <0.05). The observed difference remained until the end of the study, it was 2650 grams at 47 days of age. At this time, the mean weight of the piglets of P1 sows was 12.13 kg, while the average weight of the piglets of P2 sows was 14.78 kg (P <0.05). In terms of weight gains, there was a statistically significant difference between the two groups over four periods, including the post weaning periode. During this period, however, weight loss occurred. The weight of the piglets of P1 sows fell to a greater extent. In their case, the average daily weight loss at that time was 185 g. The other group had a weight loss of 80 g over the same period. Several of the piglets (95.2%) of P1 sows lost weight on the day after weaning while 73.5% of the piglets of P2 sows showed weight loss on this day. Based on the results it can be said that piglets of P1 sows are more sensitive to weaning than piglets of P2 sows. At the last measurement time point, there was no statistically significant difference between the performances of the two groups. There is a moderate association (R2=0.22) between the weight gains measured in the pre- and post-weaning period, with the weight of individuals gaining more in the pre-weaning period falling to a greater extent after weaning. There was a higher mortality rate among the piglets of the P2 sows. The weak piglets died in the first 4 weeks of the trial except for 1 piglet.","PeriodicalId":403816,"journal":{"name":"Acta Agraria Kaposváriensis","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123337183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Szomszédsági hatások a világ kukorica piacán 1996 és 2015 között","authors":"András Bence Szerb, I. Fertő, Arnold Csonka","doi":"10.31914/aak.2506","DOIUrl":"https://doi.org/10.31914/aak.2506","url":null,"abstract":"A mezőgazdaság globalizálódása jelentősen átalakította a kukorica világkereskedelmét.  Az elmúlt évtizedekben tapasztalható piaci növekedés, a szabadkereskedelmi egyezmények számának emelkedése, valamint területi koncentráció indokolttá teszi a szomszédsági hatások vizsgálatát. A szomszédsági hatások irodalma korábban szinte kizárólag az ipari és a szolgáltatási szektorra koncentrált. A tanulmány célja a térbeli függőség, mint a szomszédsági hatásokra utaló jelenség bemutatása a kukorica világpiacán 1996 és 2015 közötti időszakban. A cikk Moran-féle globális és lokális I mutató segítségével elemzi a térbeli függőséget a kukorica piacon, kitérve annak időbeli dinamikájára. Eredményeink megerősítették, hogy a kukoricapiac bővülése több térségben előidézte a térbeli függőség erősödését.","PeriodicalId":403816,"journal":{"name":"Acta Agraria Kaposváriensis","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126877925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of feed restriction on fatty acid profile, body composition and selected blood parameters of intensive reared pike (Esox lucius)","authors":"B. Kucska, A. Szabó, Chris Blake, C. Hancz, D. Varga","doi":"10.31914/aak.2505","DOIUrl":"https://doi.org/10.31914/aak.2505","url":null,"abstract":"This study investigated the effects of a six-week starvation period on the fatty acid profile, body composition and blood parameters of intensively reared pike (Esox lucius). 150 pike were stocked in an experimental recirculating aquaculture system (RAS) and feed was completely withdrawn. Body composition, fatty acid composition and blood parameters (serum protein, albumin, triacylglycerol, cholesterol concentration and Lactate dehidrigenase and alkaline phosphatase activity) were measured and somatic indices were calculated. A significant decline in bodyweight, crude fat content and somatic indices was accompanied by a significant decrease of blood triacylglycerol content. The relative proportion of saturated fatty acids in the fillet decreased, while polyunsaturated fatty acids increased. There was also a significant increase in the average chain length and unsaturation index of fatty acids found in the fillet flesh.","PeriodicalId":403816,"journal":{"name":"Acta Agraria Kaposváriensis","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114533856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}