Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego最新文献_第4页

The effect of alpha-ketoglutarate (AKG) on the behaviour of ageing laboratory mice α -酮戊二酸酯(AKG)对衰老实验小鼠行为的影响

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego Pub Date : 2018-12-31 DOI: 10.5604/01.3001.0013.5081

T. Niemiec, Klara Zglińska, W. Świderek, Weronika Górecka, M. Matusiewicz, A. Łozicki, I. Kosieradzka, S. Pierzynowski

引用次数: 0

Analysis of the inbreeding level in the Polish population of the Alpine Dachsbracke dog breed in the years 2000-2016 2000-2016年波兰阿尔卑斯达克布拉克犬种群近交水平分析

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego Pub Date : 2018-09-28 DOI: 10.5604/01.3001.0013.5082

E. Bednarek, A. Sławinska, S. Mroczkowski

引用次数: 3

Changes in the quality of table eggs depending on storage method and time 餐桌鸡蛋的品质随储存方法和时间的变化而变化

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego Pub Date : 2018-09-28 DOI: 10.5604/01.3001.0013.5084

M. Kopacz, A. Drażbo

{"title":"Changes in the quality of table eggs depending on storage method and time","authors":"M. Kopacz, A. Drażbo","doi":"10.5604/01.3001.0013.5084","DOIUrl":"https://doi.org/10.5604/01.3001.0013.5084","url":null,"abstract":"The aim of the research was to determine the changes occurring in table eggs depending on storage time at room temperature and in refrigeration conditions. The experimental material consisted of 75 eggs, which were randomly divided into five groups of 15. The first group (the control) comprised fresh eggs, which were tested on the day they were collected. The remaining 60 eggs were divided into two groups (30 eggs in each) and stored under different conditions for a period of 28 days. Eggs from the first group (I) were stored at room temperature, which was about 20°C with 50% humidity. Eggs from the second group (II) were placed in cold storage at 4°C and about 30% humidity. After 14 and 28 days of storage, the physicochemical properties of the eggs were analysed: the height of the air space, egg density, egg weight loss, albumen and shell quality, and yolk colour. The results indicate that the storage method had a significant (P≤0.05) effect on most of the egg quality traits analysed. Eggs stored at 4°C were of good quality and were classified as EXTRA class eggs even after 28 days. Eggs stored at 20°C were eliminated as Class A eggs as early as day 14, and on day 28 their quality disqualified them as fit for consumption. To sum up, food eggs should be refrigerated before being sold to the consumer to prevent premature ageing and thus deterioration of quality.\u0000\u0000","PeriodicalId":53138,"journal":{"name":"Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego","volume":"149 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75848033","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}

引用次数: 4

Treated and untreated anovulation associated with ovarian and uterine blood flow in Arabian mares (a case study) 阿拉伯母马经治疗和未治疗的与卵巢和子宫血流相关的无排卵(一个案例研究)

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego Pub Date : 2018-09-28 DOI: 10.5604/01.3001.0013.5083

A. A. El-Maaty, Y. E. Baghdady, K. A. Elshahat, M. Helmy, E. Abdelnaby

{"title":"Treated and untreated anovulation associated with ovarian and uterine blood flow in Arabian mares (a case study)","authors":"A. A. El-Maaty, Y. E. Baghdady, K. A. Elshahat, M. Helmy, E. Abdelnaby","doi":"10.5604/01.3001.0013.5083","DOIUrl":"https://doi.org/10.5604/01.3001.0013.5083","url":null,"abstract":"To investigate the development of treated and untreated hormonal anovulatory follicles (AnOV) associated with uterine and ovarian vascularization, rectal Doppler ultrasound of seven Arabian mares was performed before and after the development of an AnOV. In addition to measuring the diameter, area and volume of the follicle, daily colour and power Doppler scans were analysed in order to measure red, blue and power blood flow areas in pixels. Serum levels of estradiol (E2), progesterone (P4), leptin, insulin-like growth factor-I (IGF-1) and nitric oxide (NO) were measured as well. The diameter (cm), area (cm2), volume (cm3), area in pixels, antral area in pixels, circumference, and percentage change in circulation of the AnOV progressively increased (P<0.0001) after the disappearance of uterine oedema compared to the values obtained during oedema. The blue, total colour and power areas of the AnOV increased after the disappearance of uterine oedema (P<0.0001). When the antral area was excluded, the percentage of the granulosa layer in the colour and power Doppler decreased after the disappearance of uterine oedema. The ipsilateral uterine horn and uterine body had significantly (P<0.0001) high blue and red blood flow vascularization areas in the presence of uterine oedema. The AnOV was associated with low P4, IGF-1 (P<0.001), and leptin (P<0.05). Treatment of the AnOV follicle with GnRH resulted in its luteinization and induced ovulation 9 and 30 days later. It can be concluded that an abrupt increase in blood flow due to decreased progesterone and E2 and increased IGF-1 causes anovulation. The absence of oestrous behaviour and high uterine-oedema-associated follicular and ipsilateral uterine horn vascularization are predictors of ovulation failure.\u0000\u0000","PeriodicalId":53138,"journal":{"name":"Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78762495","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}

引用次数: 0

Changes in the colour and sensory properties ofbeef frozen after seven days of ageing in a modifiedatmosphere 在改变过的环境中冷藏7天后牛肉的颜色和感官特性的变化

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego Pub Date : 2018-09-28 DOI: 10.5604/01.3001.0013.5112

K. Śmiecińska, D. Kubiak, T. Daszkiewicz, Paulina Osowiec

{"title":"Changes in the colour and sensory properties of\u0000beef frozen after seven days of ageing in a modified\u0000atmosphere","authors":"K. Śmiecińska, D. Kubiak, T. Daszkiewicz, Paulina Osowiec","doi":"10.5604/01.3001.0013.5112","DOIUrl":"https://doi.org/10.5604/01.3001.0013.5112","url":null,"abstract":"The aim of the study was to evaluate the colour, sensory properties and shear force\u0000values of meat from ten young bulls produced by crossing Polish Black-and-White\u0000Holstein-Friesian cows with Belgian White Blue bulls. The quality of the longissimus\u0000lumborum (LL) muscle was determined after seven-day ageing under various modified\u0000atmosphere (MA) conditions (vacuum – group B; 40% CO2 + 60% N2 – group C; 30%\u0000CO2 + 70% Ar – group D) followed by freezing and frozen storage. The process of seven-\u0000day ageing in MA composed of 40% CO2 + 60% N2 significantly increased the colour\u0000lightness of the beef samples. Eight-month frozen storage increased colour lightness\u0000in the meat samples aged in MA composed of 30% CO2 + 70% Ar. Meat samples aged\u0000under various MA conditions had a higher contribution of redness (a*) and yellowness\u0000(b*) than non-aged beef. Meat samples frozen after ageing in MA containing Ar had\u0000less redness than the samples from other groups. After frozen storage, meat samples\u0000from all groups had less redness and yellowness. Ageing and frozen storage had no significant\u0000effect on the juiciness of the beef. The beef aged in vacuum conditions was the\u0000most tender, both before and after frozen storage. Ageing had no significant influence\u0000on the shear force of meat samples evaluated before freezing. Meat samples aged in\u0000MA composed of 30% CO2 + 70% Ar evaluated after frozen storage had lower average\u0000shear force values than beef that had not been aged prior to freezing.\u0000\u0000","PeriodicalId":53138,"journal":{"name":"Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego","volume":"55 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72541632","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}

引用次数: 2

The effect of increased methionine in broiler chickendiets on the quality of breast muscles at differenttimes of vacuum storage under refrigeration 肉鸡日粮中蛋氨酸添加量对不同真空冷藏期胸肌品质的影响

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego Pub Date : 2018-06-28 DOI: 10.5604/01.3001.0013.5143

Łucja Zonenberg, A. Drażbo

{"title":"The effect of increased methionine in broiler chicken\u0000diets on the quality of breast muscles at different\u0000times of vacuum storage under refrigeration","authors":"Łucja Zonenberg, A. Drażbo","doi":"10.5604/01.3001.0013.5143","DOIUrl":"https://doi.org/10.5604/01.3001.0013.5143","url":null,"abstract":"The aim of the study was to determine the effect of different levels of DL-methionine in feed\u0000for broiler chickens on the quality of vacuum-packed breast muscles stored under refrigeration.\u0000The material for the study was 72 breast muscles from 35-day-old broiler chickens fed\u0000diets with varying content of DL-methionine. The control group received a basal diet without\u0000additional DL-methionine, while the experimental groups received compound feeds supplemented\u0000with 0.08% or 0.24% DL-methionine. At 35 days of age, 24 birds from each group\u0000were randomly selected and experimentally slaughtered. After the carcasses were dissected,\u00008 right breast muscles were selected from each feeding group and analysed immediately after\u0000cooling. The remaining muscles were vacuum-packed and after 7 and 14 days of storage physicochemical\u0000and sensory analyses were performed to assess the influence of storage time on\u0000changes in their quality. The methionine level was not found to affect the sensory properties\u0000of the breast muscles, but the meat of birds receiving a higher level of this amino acid had\u0000better shear force and water-holding capacity in comparison to the control group. After just\u00007 days, the results of the analyses of vacuum-packed refrigerated muscles showed a negative\u0000effect of storage time on the capacity of the muscle tissue to bind water, as well as changes\u0000in the proportion of red colour in the muscles. However, it is worth noting that the sensory\u0000quality of the muscles deteriorated only after 14 days of storage.\u0000\u0000","PeriodicalId":53138,"journal":{"name":"Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89878742","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}

引用次数: 1

The influence of the housing system on selected productionfeatures of chickens of Ross 308 parent stock 鸡舍制度对罗斯308亲本鸡生产特性的影响

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego Pub Date : 2018-06-28 DOI: 10.5604/01.3001.0013.5139

B. Biesiada-Drzazga, P. Majkowski

{"title":"The influence of the housing system on selected production\u0000features of chickens of Ross 308 parent stock","authors":"B. Biesiada-Drzazga, P. Majkowski","doi":"10.5604/01.3001.0013.5139","DOIUrl":"https://doi.org/10.5604/01.3001.0013.5139","url":null,"abstract":"The aim of the research was to analyse the effect of the housing system on selected reproductive\u0000traits of parental stock of Ross 308 meat chickens. The study was conducted on two flocks, one of\u0000which was kept in a chicken house on a concrete floor entirely covered with litter, and the second in\u0000a chicken house in which one-third of the floor was a plastic slated floor and the other two-thirds was\u0000a concrete floor covered with litter. During the 38-week laying period, an average of 179.7 eggs were\u0000obtained from laying hens kept in the chicken house with a litter floor, including 168.2 hatching eggs,\u0000and 187,4 and 175.6 eggs, respectively, from hens kept in the chicken house with a slatted/litter floor\u0000(differences not statistically confirmed). The housing system non-significantly influenced feed intake\u0000and the number of eggs laid depending on where they were laid (inside or outside the nest). In the litter\u0000system, eggs outside the nest accounted for 3.1% and in litter/slatted floor system 9.8% of the total\u0000number of eggs laid; the differences were statistically non-significant.\u0000\u0000","PeriodicalId":53138,"journal":{"name":"Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83635480","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}

引用次数: 1

Dependence of physical characteristics of ejaculate ofPolish Landrace boars on the time interval betweensuccessive ejaculate collections 连续射精时间间隔对波兰长白猪射精物理特性的影响

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego Pub Date : 2018-06-28 DOI: 10.5604/01.3001.0013.5142

S. Kondracki, M. Iwanina, D. Kowalewski, M. Bajena, A. Wysokińska

{"title":"Dependence of physical characteristics of ejaculate of\u0000Polish Landrace boars on the time interval between\u0000successive ejaculate collections","authors":"S. Kondracki, M. Iwanina, D. Kowalewski, M. Bajena, A. Wysokińska","doi":"10.5604/01.3001.0013.5142","DOIUrl":"https://doi.org/10.5604/01.3001.0013.5142","url":null,"abstract":"The aim of the research was to determine the dependence of physical properties of boar\u0000ejaculates on the time interval between successive ejaculate collections. The material for the\u0000study comprised 1954 ejaculates collected manually from boars used for artificial insemination.\u0000For all ejaculates, the ejaculate volume, sperm concentration, percentage of motile\u0000spermatozoa, and number of spermatozoa in the ejaculate were determined, and the number\u0000of insemination doses per ejaculate was calculated. The boars’ suitability for artificial insemination\u0000was evaluated taking into account the effect of the time passed between ejaculate\u0000collections. The ejaculate volume and the concentration and number of sperm in the ejaculate\u0000were shown to increase with the time elapsed since the previous ejaculate. The number\u0000of insemination doses obtained per ejaculate increased as well. Ejaculates with a high sperm\u0000count were obtained when the ejaculation frequency was no more than every 4 days. The percentage\u0000of spermatozoa with progressive motility increased with the time elapsed since the\u0000collection of the previous ejaculate, but only up to 4 days. Further decreases in ejaculation\u0000frequency no longer resulted in increased sperm motility.\u0000\u0000","PeriodicalId":53138,"journal":{"name":"Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78493020","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}

引用次数: 1

The influence of the addition of herbs to the summer diet of sheep on the yield of bundz rennet cheese and its nutritional value 绵羊夏季日粮中添加草药对bundz凝乳干酪产量及其营养价值的影响

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego Pub Date : 2018-03-29 DOI: 10.5604/01.3001.0013.5141

A. Jarzynowska, E. Peter

{"title":"The influence of the addition of herbs to the summer diet of sheep on the yield of bundz rennet cheese and its nutritional value","authors":"A. Jarzynowska, E. Peter","doi":"10.5604/01.3001.0013.5141","DOIUrl":"https://doi.org/10.5604/01.3001.0013.5141","url":null,"abstract":"The study was carried out on samples of raw sheep milk and bundz rennet cheese produced from it. The milk was obtained from ewes of the Koluda prolific dairy breed, from June to August. The sheep were housed indoors and fed with alfalfa green forage and a mixture of concentrate feeds. Three groups were formed for the experiment: group I – control, fed without the addition of herbs to the concentrate feed, and groups II and III, in which an herb mixture was added to the concentrate feed in the amount of 10 and 20 g/sheep/day, respectively. Six experimental batches of bundz rennet cheese were made from the sheep milk, and the effect of the addition of herbs to the sheep diet on the chemical composition of the raw milk, the cheese yield, and its nutritional value was analysed. The results showed that the use of the herbal supplement in the feed of the Koluda prolific dairy sheep in summer had no effect on the chemical composition of the raw milk, and thus its value for processing, expressed as the yield of bundz rennet cheese. Moreover, there was no statistically confirmed influence of the experimental factor on the chemical composition of the cheese. Only a tendency towards lower fat content was noted in the group III cheese in comparison with groups I and II (by 6.5% and 8.0% respectively), which resulted in an improved protein-to-fat ratio (by 7.3% and 9.0% respectively) and lower energy value (by 3.6% and 5.2% respectively). We also noted a tendency towards higher mineral content (ash) in the cheese from groups II and III as compared to group I, by 8.7% and 13.0%, respectively However, these differences were not confirmed statistically, probably due to high intra-group variation in this feature (V% in groups I, II and III: 19.7, 33.7 and 46.1, respectively).","PeriodicalId":53138,"journal":{"name":"Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego","volume":"137 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81703634","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}

引用次数: 1