Temat: cattle production - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The quality of oocytes and embryos produced in vitro – the porcine and bovine model
Autorzy:: Cieslak, D.
Madeja, Z.
Orsztynowicz, M.
Pawlak, P.
Pers-Kamczyc, E.
Warzych-Plejer, E.
Powiązania:: https://bibliotekanauki.pl/articles/951209.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: oocyte quality
embryo quality
in vitro production
development potential
pig
cattle
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Application of the covariance function approach with an iterative two-stage algorithm to the estimation of parameters of a random regression test day model for dairy production traits
Autorzy:: Szyda, J
Powiązania:: https://bibliotekanauki.pl/articles/2041979.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: animal genetics
random regression model
covariance function
dairy production
dairy cattle
Źródło:: Journal of Applied Genetics; 2001, 42, 2; 177-191
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Properties of the transmission-disequilibrium test for the detection of quantitative trait loci in livestock
Autorzy:: Szyda, J
Liu, Z.
Wild, V.
Powiązania:: https://bibliotekanauki.pl/articles/2044224.pdf
Data publikacji:: 1998
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: transmission-disequilibrium test
German Holstein cattle
chromosome localization
milk production
power
simulated data
population
real data
detection
dairy cattle
simulation system
Opis:: The transmission-disequilibrium test (TDT) is a model-free method to detect linkage between a marker and a trait locus. Originally developed to map disease genes in human genetics, this statistic has been recently extended to deal with quantitative characters. The emphasis of current research is on investigating statistical properties of the test applied to data from livestock populations. For various constellations of sample parameters, it is shown via simulation that the empirically derived null hypothesis distribution of TDT remains in good agreement with its asymptotic distribution while its power is satisfactory only for very close linkage. TDT is then applied to a real data set from milk production data of a dairy cattle population.
Źródło:: Journal of Applied Genetics; 1998, 39, 4; 309-319
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Comparison of growth hormone and kappa-casein gene polymorphism in Polish Red and German Red cattle breeds
Autorzy:: Citek, J
Filistowicz, A.
Rehout, V.
Neubauerova, V.
Powiązania:: https://bibliotekanauki.pl/articles/2043414.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: insemination
polymorphism
kappa-casein
preservation programme
milk production
growth hormone
heterozygous genotype
German Red cattle
Polish Red cattle
allele
genetic diversity
Źródło:: Journal of Applied Genetics; 2000, 41, 3; 181-185
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The effects of genotype and selected environmental factors on colostrum production and intake in cattle
Autorzy:: Antkowiak, I
Pytlewski, J.
Jakubowski, M.
Skrzypek, R.
Powiązania:: https://bibliotekanauki.pl/articles/31482.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: cattle
colostrum
production
intake
genotype
environmental factor
utilization
Polish Holstein-Friesian breed
Black-and-White breed
Red-and-White breed
Opis:: The aim of this study was to determine effects of genotype and selected environmental factors on colostrum production, intake, and efficiency in the cattle. The investigations were conducted on 67 dam-calf pairs. All cows were of Polish Holstein-Friesian breed, the Black-and-White variety (PHF-HO), whereas calves were sired by bulls of the following breeds: PHF-HO, Polish Holstein-Friesian of the Red-and-White variety (PHF-RW), Jersey (JE), Montbéliarde (MB) and Limousine (LI). The colostrum was collected from cows and offered to calves "from bucket" thrice a day. The amount of produced colostrum considerably exceeded the ability of its consumption by calves. Low share of HF genes in the cow, older cow's age and calving in the period from January to April appeared to be favorable factors for colostrum production. Calves born to cows with low HF gene share drank more colostrum than calves originating from cows with higher gene share of this breed. Crosses with JE drank the highest amount of the colostrum in relation to body weight, while MB-sired calves drank the highest amount in absolute terms. Colostrum intake was positively correlated with the dam's age. Furthermore, it was shown that in case of the first colostrum intake the most favorable period was from May to September, while in cases of total intake in the first day of life and mean intake in the first 5 days of life it was the period from January to April. Crosses with JE were characterized by extremely high use of colostrum per unit of body weight gain.
Źródło:: Polish Journal of Veterinary Sciences; 2010, 13, 1; 137-141
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: A survey of anti-Ostertagia ostertagii antibody levels in bulk tank milk samples (BTM) in dairy herds in Lower Silesia Region (Poland)
Autorzy:: Ploneczka-Janeczko, K.
Piekarska, J.
Rypula, K.
Mazurkiewicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/31890.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: bulk tank milk
Lower Silesian region
Ostertagia ostertagi
Polska
antibody level
bulk tank
herd
bulk tank milk sample
ELISA test
optical density ratio
parasite
animal infection
production loss
cattle
dairy cattle
Opis:: This work presents serological evidence of cattle ostertagiosis in the Lower Silesia Region (Poland), based on the measurement of antibodies in bulk tank milk (BTM) samples. It represents the first evidence of this parasite examined with the use of the ELISA test and milk samples in Poland. The prevalence of Ostertagia ostertagii antibodies was determined in BTM from 32 dairy cattle herds. Antibodies to O. ostertagii were demonstrated in all herds. The optical density ratio (ODR) varied from -0.088 to 1.024. The mean ODR value in the examined region was 0.53.
Źródło:: Polish Journal of Veterinary Sciences; 2011, 14, 1
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Linkage and interdependence of A2MD1 and A2ME2 alpha2-macroglobulin genes in cattle
Autorzy:: Wegrzyn, J
Skiba, E
Krzyscin, P
Powiązania:: https://bibliotekanauki.pl/articles/2047144.pdf
Data publikacji:: 1997
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: antigen marker
gene
animal production
alpha2-macroglobulin
cattle
antigenic determinant
protein
marker
A2MD1 gene
A2ME2 gene
Opis:: The transmission of previously described genes A2MD1 and A2ME2 that determine antigenic markers of alpha₂-macroglobulins A₂mD1 and А₂mЕ2 in cattle was studied. The starting point for the analyses was the lack of individuals negative for both markers in the population of 3551 Black-and-White, Red-and-White, Polish Red and Simmental cattle and interbreed crosses. Controlling of these specificities by allelic genes or genes from closely linked loci was considered. To support or reject this hypothesis, the independence test 2 x 2 and analysis of segregation of A₂mD1 and А₂mЕ2 in the offsprings of all phenotypic matings found and of selected matings in which genotypes of sires were determined, were used. It was found that the observed segregation of antigenic markers in the offsprings rules out the possibility that they are determined by allelic genes. The results obtained show that markers A₂mD1 and А₂mЕ2 are controlled by the genes A2MD1 and A2ME2 from closely linked loci. Moreover it seems that only those haplotypes are transmitted in which both genes - A2MD1 and A2ME2, or one of them - A2MD1 or A2ME2, are present. No haplotypc would then be transmitted (would occur?) in which both genes are in the recessive form. recessive form.
Źródło:: Journal of Applied Genetics; 1997, 38, 2; 187-193
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The selection index and single-and multi-trait animal model evaluation of Polish Black-and-White cows
Autorzy:: Jagusiak, W
Zarnecki, A.
Powiązania:: https://bibliotekanauki.pl/articles/2043444.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Polska
lactation
Polish Black cow
dairy cow
milk production
dairy cattle
animal model
fat content
breeding value
cow
selection index
genetic evaluation
Polish White cow
protein content
Źródło:: Journal of Applied Genetics; 2000, 41, 3; 171-179
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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