Wyniki wyszukiwania - Biblioteka Nauki

1

Prolactin (PRL) and prolactin receptor (PRLR) genes and their role in poultry production traits

100%

Wilkanowska A. , Mazurowski A. , Mroczkowski S. , Kokoszynski D.

Folia Biologica

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2014

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tom 62

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nr 1

2

Effect of polymorphism in IGF-1 gene on production traits in Polish Holstein-Friesian cattle

86%

Siadkowska E. , Zwierzchowski L. , Oprzadek J. , Strzalkowska N. , Bagnicka E. , Krzyzewski J.

Animal Science Papers and Reports

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2006

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tom 24

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nr 3

3

Analysis of porcine candidate genes from selected QTL regions affecting production traits

86%

Stratil A. , Geldermann H.

Animal Science Papers and Reports

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2004

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tom 22

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nr 1

4

Detection of production trait loci in the chicken genome

86%

Hillel J.

Animal Science Papers and Reports

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2004

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tom 22

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nr 1

5

The effect of inbreeding on reproduction and production traits in mink

86%

Berg P.

Zeszyty Naukowe. Przegląd Hodowlany

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1996

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tom 27

6

The effect of genotype and of some selected factors on the content of somatic cells and productive traits of Black-and-White cows in the Wielkopolska region

72%

Pytlewski J. , Antkowiak I. , Kucera J.

Animal Science. Scientific Papers of Agricultural University of Poznan

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2003

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tom 05

7

Influence of feeding complete dry diets mixed with water on production traits and health status of blue foxes (Alopex lagopus)

72%

Gugolek A. , Lorek M. O. , Rotkiewicz T. , Rotkiewicz Z. , Janiszewski P. , Zablocki W.

Animal Science Papers and Reports

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2010

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tom 28

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nr 2

EN

An experiment was performed on 120 growing blue foxes (Alopex lagopus), 60 animals per group. Control group (C) was offered traditional diets prepared from thawed components while the experimental (E) was offered a pulp obtained from mixing dry pulverized components (animal meals, ground wheat,fat, witamin-mineral mix), with water 5 h prior to feeding. The body weight of foxes was recorded, and fur quality assessed based on live measurements and pelt quality evaluation. The diets were monitored for microbial contamination. The effects of diets on the overall health of animals were estimated based on blood biochemical and morphological parameters as well as anatomopathological changes of the digestive tract and internal organs. It was found that the risk of microbial contamination was lower in experimental diets, compared to conventional ones. Experimental feeding had no influence on the final body weights of foxes, but had positively affected fur quality (P<0.01). No negative impact of experimental diets on the health status of animals was observed.

PL

Badania wykonano na 120 rosnących lisach polarnych (Alopex lagopus), podzielonych na zasadzie analogów na dwie grupy po 60 zwierząt Grupę kontrolną (C) żywiono mieszankami tradycyjnymi uzyskiwanymi z komponentów mrożonych. W grupie doświadczalnej (E) korzystano ze sproszkowanych składników suchych, głównie mączek zwierzęcych, śrut, tłuszczów i preparatu witaminowo-mineralnego,które przed podaniem nawilżano wodą, uzyskując pokarm o konsystencji pulpy. Kontrolowano wzrost zwierząt i oceniono uzyskane futra, zarówno przyżyciowo, jak i na podstawie cech skóry. Monitorowano obraz mikrobiologiczny mieszanek. Wpływ żywienia na zdrowie zwierząt oceniono na podstawie badań morfologicznych i biochemicznych krwi oraz zmian anatomopatologicznych przewodu pokarmowego i narządów wewnętrznych. Stwierdzono, że mieszanki podawane lisom w grupie E charakteryzował korzystniejszy obraz mikrobiologiczny niż mieszanki tradycyjne. Żywienie stosowane w grupie E nie spowodowało zróżnicowania końcowej masy ciała zwierząt, natomiast wpłynęło korzystnie na jakość ich okrywy włosowej (P<0.01). Nie udowodniono negatywnego wpływu żywienia na stan zdrowia lisów.

8

Structure and the non-genetic and genetic effects on milk traits in Polish dairy goat population

72%

Bagnicka E. , Hamann H. , Distl O.

Animal Science Papers and Reports

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2015

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tom 33

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nr 1

EN

The aims of this study were to analyse the structure of Polish dairy goat population and to estimate the non-genetic and genetic sources of variation in five milk traits. The data set comprised 18,563 lactation records of 8,938 dairy goats, while the pedigree file covered information on 13,159 animals 6 generations deep. To estimate the environmental effects the GLM procedure, using a model with the random effect on the herd-sire interaction, the fixed effects of herd-year-season of kidding interaction, breed, litter size, parity, year of birth and regression on day-in-milk. To estimate the co(variance) of the components of milk, fat, and protein yields, as well as fat and protein contents the REML method based on the repeatability animal model was applied. The average inbreeding coefficient was 0.61% (sd=3.12%). Milk, fat and protein yields were affected by all the factors except for breed. The nanny goats with more than two kids had higher milk, fat and protein yields,but they had a lower percentage of milk components than those with one kid or twins. The goats in their first lactation had the lowest milk, fat and protein yields, but the highest fat content. The heritability estimates were moderate (0.21, 0.18, 0.19 for milk, fat and protein yields, respectively).Repeatability estimates ranged from 0.30 for milk, 0.28 for fat, and 0.27 for protein yields, and 0.25 and 0.28 for fat and protein contents. Genetic correlations between milk yield and fat and protein contents were negative and moderate (-0.27 and -0.30), between fat and protein contents (0.58) while those between yields were ranged from 0.71 to 0.86. In turn, correlations between fat yield and its content, and protein yield and its content were positive and moderate (0.35, 0.23).

9

The effects of polymorphisms in DGAT1, GH and GHR genes on reproduction and production traits in Jersey cows

72%

Komisarek J. , Michalak A. , Walendowska A.

Animal Science Papers and Reports

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2011

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tom 29

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nr 1

EN

The aim of the study was to examine the impact of four single nucleotide polymorphisms in DGAT1, GH and GHR genes on reproduction, production and udder health in Jersey cattle. The study was conducted on 209 cows from the Polish active dairy population and genotypes were identified using the PCR-RFLP technique. The significant effects on certain of analysed traits were revealed of GHL127V and GHR-F279Y polymorphisms. Replacement of the phenylalanine encoding T allele by the tyrosine encoding A variant at GHR-F279Y locus led to decrease in milk, fat and protein yields. The GH-L127V-CC genotype was found to be significantly associated with the shorter calving interval and shorter interval from calving to conception than the other two GH genotypes. No relations were found between DGAT1-K232A mutation and health or reproductive traits of cows.

10

The influence of birth date and litter mating on production traits of Polar foxes

72%

Zawislak J. , Laski B. , Kubacki S.

Acta Scientiarum Polonorum. Zootechnica

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2008

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tom 07

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nr 2

31-38

11

Relationships between production traits and the parity of Polish Holstein-Friesian cows

72%

Kuczynska B. , Budzinski A. , Kapusta A. , Puppel K. , Nalecz-Tarwacka T. , Golebiewski M. , Wojcik A. , Grodzki H.

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

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2015

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tom 54[1]

EN

Relationships between production traits and the parity of Polish Holstein-Friesian cows. The objectives of the study was to describe the relationships between milk urea, protein, fat concentrations and the age of Polish Holstein-Friesian cows. The experiment was carried out at the research dairy farm of the Warsaw University of Life Sciences (WULS). From a herd of 320 Polish Holstein Friesian cows maintained in a free–stall dairy shed 50 cows were selected. Parity had significant effect on the shaping the concentration of the production traits. The highest content of protein, 3.87%, was found in milk of cows during 3rd and subsequent lactations in the 10. collecting (above 271 day of lactation). The fat content ranged at the herd level from 3.18 to 4.89 %, the highest level has been recorded in milk of cows during 3th and subsequent lactations, in the 10. collecting (above 271 day of lactation). The urea content ranged at the herd level from 183 to 267 mg L -1. Milk production traits varies significantly with the age of cows. Hence, researchers should consider monitoring for this variable as potential cofounder when exploring the relationship between urea, protein, fat content in milk and nutritional management for meeting the production requirements of cows.

PL

Kolejność laktacji krów rasy PHF jako czynnik kształtujący poziom cech użytkowych mleka w intensywnym systemie produkcji. Celem badania było oszacowanie zależności między zawartością białka, tłuszczu, oraz mocznika w zależności w od kolejności laktacji. Badaniami objęto 50 krów rasy Polskiej Holsztyńsko-Fryzyjskiej. Za pomocą spektrofotometrii w podczerwieni FTIR oznaczono koncentrację poszczególnych składników mleka. W pracy wykazano zróżnicowane poziomy składników użytkowych mleka w kolejnych laktacjach. Największą zawartość białka, 3.87%, stwierdzono w mleku krów w okresie 3. laktacji, w 10. pobraniu (powyżej 271. dnia laktacji). Zawartość tłuszczu wahała się na poziomie od 3.18 do 4.89%, najwyższy poziom wykazano w mleku krów będących w 3. laktacji, w 10. pobraniu (powyżej 271. dnia laktacji). Zawartość mocznika wahała się przedziale od 183 do 267 mg L -1 na poziomie stada. Cechy produkcyjne mleka różniły się znacznie w zależności od wieku krów. Sugeruje się aby w trakcie zarządzania stadami wielkotowarowymi uwzględniać obserwację zmiennej jaką jest wiek krów (numer laktacji) przy bilansowaniu dawek pokarmowych w poszczególnych grupach produkcyjnych.

12

Genetic evaluation of production and reproduction traits in two selected lines of geese under multitrait animal model

72%

Wolc A. , Barczak E. , Wezyk S. , Badowski J. , Bielinska H. , Szwaczkowski T.

Animal Science Papers and Reports

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2008

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tom 26

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nr 1

EN

Heritability of and genetic correlations among production and reproduction traits as well as genetic trends over eight years of selection were estimated in W11 (maternal) and W33 (paternal) lines of geese. Considered was body weight on week 8 (BW8) and week 11 (BW11), number of eggs produced (EP), egg weight (EW), percentage of fertility (PFE), and percentage of hatchability from eggs fertilized (PHC). Multitrait animal model was applied. Moderate to high heritability estimates were obtained for BW8, BW11 and EP in both lines while lower for PFE and PHC. Highest genetic correlations were estimated between PFE and PHC and between the body weight traits. No clear genetic trends for any trait were identified. Generally, unfavourable relationships between productive and reproductive traits have been confirmed.

PL

Oszacowano odziedziczalność i korelacje genetyczne między cechami produkcyjnymi w dwóch rodach gęsi (BW8 i BW11). Ponadto wyznaczono trendy genetyczne i fenotypowe dla badanych cech, które obejmowały: masę ciała w 8 i 11 tygodniu życia (BW8 i BW11), nieśności (EP), masę jaja (EW), procent zapłodnienia (PFE) i procent wylęgu z jaj zapłodnionych (PHC). Analizę przeprowadzono za pomocą wielocechowego modelu zwierzęcia. Współczynniki odziedziczalności dla masy ciała i nieśności przyjęły średnie wartości w obu rodach. Najniższe wartości h2 uzyskano dla cech reprodukcyjnych. Najwyższe dodatnie korelacje wykazano wśród cech reprodukcyjnych (PFE i PHC) oraz dwóch pomiarów masy ciała (BW8 i BW11). Trendy genetyczne we wszystkich badanych cechach były niewielkie i nieukierunkowane. Generalnie, przeprowadzone badania potwierdziły istnienie niekorzystnych zależności między cechami produkcyjnymi a reprodukcyjnymi

13

QTL mapping and mining functional candidate genes affecting health - the German ADR QTL Dairy Cattle Project

72%

Schwerin M. , Kuhn C. , Brunner R. , Goldammer T. , Bennewitz J. , Reinsch N. , Xu N. , Thomsen H. , Looft C. , Weimann C. , Hiendleder S. , Erhardt G. , Medjugorac I. , Forster M. , Brenig B. , Reinhardt F. , Reents R. , Russ I. , Averdunk G. , Blumel J. , Kalm E.

Animal Science Papers and Reports

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2004

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tom 22

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nr 1

14

SNPs in the porcine PPARGC1A gene: interbreed differences and their phenotypic effects

72%

Stachowiak M. , Szydlowski M. , Cieslak J. , Switonski M.

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nr 2

EN

Due to its function, the peroxisome proliferative activated receptor-γ, coactivator-1α (PPARGC1A) gene is a candidate in the search for genes that may affect production traits in the pig. The purpose of this study was to screen for new SNPs in exon 8 of the porcine PPARGC1A gene and to test their possible association with production traits. Altogether 736 pigs representing five breeds Polish Landrace, n=242; Polish Large White, n=192; Hampshire, n=27; Duroc, 21; Pietrain, n=12) and synthetic line 990 (n=242) were scanned via SSCP assay. Four SNPs were found; two new ones: C/G (His338Gln) and G/A Thr359Thr), and two previously reported ones: C/A (Arg369Arg) and T/A Cys430Ser). The missense T/A and C/G SNPs demonstrated pronounced interbreed variability in terms of allele frequencies, including the exclusive presence of the C/G substitution in the Hampshire breed. The tested SNPs occurred in five putative haplotypes, and their frequency also differed substantially between breeds. The association of the SNPs with production traits was tested for G/A (Thr359Thr), C/A (Arg369Arg) and T/A (Cys430Ser) substitutions in Polish Large White, Polish Landrace and line 990. The analysis revealed only breed-specific associations. The T/A (Cys430Ser) SNP was related to the feed conversion ratio in the Polish Large White (P=0.02), and the silent G/A and C/A substitutions were respectively associated with abdominal fat in line 990 and backfat thickness in Polish Landrace (P=0.04). The combined effects of the substitutions were estimated as haplotype effects. Three significant contrasts between haplotypes were calculated, but the observed associations were again only breed-specific.

15

Relation between the shape and course of lactation curve and production traits of Polish Holstein-Friesian and Montbeliarde cows

58%

Golebiewski M. , Piotrowski T. , Brzozowski P. , Grodzki H. , Przysucha T. , Slosarz J. , Kunowska-Slosarz M. , Nalecz-Tarwacka T. , Wojcik A.

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

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2015

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tom 54[1]

EN

Relation between the shape and course of lactation curve and production traits of Polish Holstein-Friesian and Montbeliarde cows. The aim of the study was to examine the relation between shape and course of lactation curve and production traits of Polish Holstein-Friesian and Montbeliarde cows kept under various production systems. The production parameters were based on cows records developed by Polish Federation of Cattle Breeders and Producers and involved 1374 lactations. For estimation of lactation curve parameters Wood’s model was applied. The influence of breed, lactation number and type of the farm on Wood’s parameters were analyzed. The relations between shape and curse of the lactation curve on daily production and milk chemical composition were investigated. Analysis revealed that standard shape of the lactation curve was the most often observed, the significantly higher frequency was observed in mo than phf cows. Cows with standard lactation curve characterized by the highest production and the best milk quality. The significant influence of breed, lactation number and farm type on Wood’s parameters were stated. Cow with less dynamic changes in milk production during lactation characterized by significantly better production parameters.

PL

Zależność między kształtem oraz przebiegiem krzywej laktacji a cechami produkcyjnymi krów rasy polskiej holsztyńsko fryzyjskiej i montbeliarde. Celem pracy było określenie zależności między kształtem i przebiegiem krzywych laktacji a kształtowaniem się parametrów produkcyjnych w stadach krów rasy phf i mo w różnych systemach utrzymania. Wskaźniki produkcyjne analizowanych stad opracowano na podstawie wyników oceny użytkowości mlecznej, które obejmowały 1374 laktacje. Do obliczenia parametrów krzywej laktacji wykorzystano model Wood’a. Analizom poddano wpływu: rasy, laktacji oraz typu gospodarstwa na kształtowanie się parametrów modelu Wood’a. Badano również zależność między kształtem i przebiegiem krzywej a produkcją i składem chemicznym mleka w próbnych udojach. W przeprowadzonych badaniach stwierdzono, że najczęściej występującym typem krzywej była krzywa standardowa, która wykazała wyższą częstotliwość krów rasy mo niż phf. Standardowy przebieg krzywej laktacji gwarantował najwyższą produkcję i jakość mleka badanych krów. Stwierdzono istotny wpływ rasy, laktacji oraz typu gospodarstwa na kształtowanie się parametrów modelu Wood’a. Krowy charakteryzujące się mniej dynamicznym przebiegiem laktacji charakteryzowały się istotnie lepszą produkcyjnością laktacyjną.

16

Bayesian inference of genetic parameters for test-day milk yield, milk quality traits, and somatic cell score in Burlina cows

58%

Penasa M. , Cecchinato A. , Battagin M. , De Marchi M. , Pretto D. , Cassandro M.

Journal of Applied Genetics

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2010

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tom 51

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nr 4

EN

The aim of the study was to infer (co)variance components for daily milk yield, fat and protein contents, and somatic cell score (SCS) in Burlina cattle (a local breed in northeast Italy). Data consisted of 13 576 monthly test-day records of 666 cows (parities 1 to 8) collected in 10 herds between 1999 and 2009. Repeatability animal models were implemented using Bayesian methods. Flat priors were assumed for systematic effects of herd test date, days in milk, and parity, as well as for permanent environmental, genetic, and residual effects. On average, Burlina cows produced 17.0 kg of milk per day, with 3.66 and 3.33% of fat and protein, respectively, and 358 000 cells per mL of milk. Marginal posterior medians (highest posterior density of 95%) of heritability were 0.18 (0.09-0.28), 0.28 (0.21-0.36), 0.35 (0.25-0.49), and 0.05 (0.01-0.11) for milk yield, fat content, protein content, and SCS, respectively. Marginal posterior medians of genetic correlations between the traits were low and a 95% Bayesian confidence region included zero, with the exception of the genetic correlation between fat and protein contents. Despite the low number of animals in the population, results suggest that genetic variance for production and quality traits exists in Burlina cattle.

17

The effect of selenium supplementation to the diet of dairy cows and goats on production traits and animal health - a review

58%

Krzyzewski J. , Bagnicka E. , Horbanczuk J. O.

Animal Science Papers and Reports

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2014

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tom 32

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nr 4

EN

The results of studies conducted so far in the field of supplementing Se deficiency in cow and goat diets demonstrate unequivocally the positive influence of supplements used on the improvement of the health status of animals and an important increase in the concentration of this microelement in the obtained milk. The positive influence on health is reflected in the increased antioxidative status and immunological potential of these animals, in the reduced risk of mastitis, in the improvement of reproductive rate and increased Se transfer to cow foetus. The best results are obtained when the diet is supplemented with selenium yeast. The improvement in animal Se supply also has a positive influence on the increase of antioxidative properties of milk and meat. Further research in the field is necessary, connected among others with determining the relationship between the concentration of Se and antagonistic elements as well as vitamin E.

18

Odziedziczalność niektórych cech produkcyjnych maciorek rasy czarnogłówka

58%

Zajac S.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1988

|

tom 352

RU

Соответствующие исследования проводились на черноголовых овцематках из овчарен воеводства Олыитын. Исследования охватывали в Лэнжанах 79 овцематок после 6 баранов, в Лумпе 95 овцематок после 9 баранов и в Воплавке 166 овцематок после 12 баранов. Для указанных популяций оценивали показатели наследуемости следующих признаков: вес тела в возрасте 5 и 12 месяцев, длина и продуктивность потной шерсти в 1-ой стрижке. В популяции ярок из Воплавки был получен очень высокий коэффициент наследуемости для веса тела в 12-месячном возрасте (h²=O,92). Вес тела ярок в 5-месячном возрасте оказался наследуемым в низкой степени. В овчарнях хозяйств Лумпя и Ленжаны вес тела как 5- так и 12-месячных ярок был слабо обусловлен в генетическом отношении. В исследуемых стадах ярок наследуемость продуктивности потной шерсти в I-ой стрижке была несколько ниже показателей наследуемости длины шерсти измеряемой в то же время. Для обоих признаков шерсти во всех овчарнях коэффициенты наследуемости были визкими.

EN

The respective investigations were carried out on "black-head" ewes from sheepyards of the Olsztyn district. The investigations comprised at Łężany 79 ewes after 6 rams, at tumpin 95 ewes after 9 rams and at Wopławka 166 ewes after 12 rams. For these populations heritability indices of the following traits: body weight at the age of 5 and 12 months, grease wool grading and productivity from the 1st shearing, were estimated. In the population of gimmers from Wopławka a very high heritability coefficient for the body weight at the age of 12 months (h² = 0.92) has been obtained. The body weight of 5-month gimmers proved to be little heritable. In sheepyards of Łumpia and Łężany the body weight of both 5- and 12-month gimmers proved to be weakly conditioned in genetic respect. In the investigated flocks of gimmers the heritability of greasy wool production in the 1st shearing was somewhat lower than the heritability indices of wool grading measured at the same time. The heritability coefficients for the both wool treats were low in all sheepyards.

19

The effect of cystatin B gene (CSTB) on productive traits in pigs

58%

Urbanski P. , Pierzchala M. , Terman A. , Kamyczek M. , Kapelanski W. , Bocian M. , Kawka M. , Parada R. , Roszczyk A. , Rozycki M. , Kuryl J.

Animal Science Papers and Reports

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2013

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tom 31

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nr 4

EN

Cystatin B gene is a candidate gene for carcass and meat quality traits of pigs and belongs to the family 1 of cysteine proteinase inhibitors. The enzyme is a cathepsin inhibitor and the proteolytic cystatin/cathepsin system plays an important role in the growth and development of muscles.Investigations presented here covered 707 pigs from different genetic groups reared in Poland. The aim of this study was to characterise the polymorphism of the CSTB gene identified with restriction endonuclease: TaqI and PvuII, and to analyse the relation between the CSTB genotypes and carcass traits. All tested animals proved to be monomorphic at the CSTB/TaqI locus. All three possible genotypes were observed with regard to the second CSTB/PvuII locus. In Polish Large White and Polish Landrace pigs the highest frequency was reported for BB homozygotes. The association between CSTB and carcass traits was found only in Polish Landrace pigs for the meat content of carcass, meat content of valuable cuts and weight of the loin.

20

Production traits in laying hens kept in furnished cages and aviary

58%

Zoons J. , Cox M. , De Baere K.

Animal Science Papers and Reports. Supplement

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2005

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tom 23

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nr 1