Wyniki wyszukiwania - Biblioteka Nauki

1

Simultaneous determination of carbofuran and 3-hydroxycarbofuran in duck liver by an UPLCMS/MS

100%

Chen S. , Yu Y. , Ma J. , Wen C. , Wang X. , Zhou Q.

Acta Chromatographica

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2021

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tom Vol. 33, no. 4

354--360

EN

Carbofuran is a carbamate pesticide, a broad-spectrum, high-efficiency, low-residue, and highly toxic insecticide, acaricide, and nematicide, widely used in agriculture. Carbofuran is most harmful to birds, and birds or insects killed by furan poisoning can be killed by secondary poisoning after being foraged by raptors, small mammals, or reptiles. In this paper, an UPLC-MS/MS method was developed for the determination of carbofuran and its metabolite, 3-hydroxycarbofuran, in duck liver. Liver tissue was first ground into a homogenate and then passed through ethyl acetate liquid-liquid extraction processing samples. Multiple reaction monitoring (MRM) mode was used for quantitative analysis, m/z 222.1 → 165.1 for carbofuran, m/z 238.1 → 180.9 for 3-hydroxycarbofuran and m/z 290.2 → 198.2 for an internal standard. The standard curves of carbofuran and 3-hydroxycarbofuran in duck liver were within a range of 2–2000 ng/g, where the linearity was good, the lower limit of quantification was 2 ng/ g. The intra-day precision of carbofuran and 3-hydroxycarbofuran was <14%, and the inter-day precision was <13%, the accuracy range was between 91.8 and 108.9%, the average extraction efficiency was higher than 75.1% with a matrix effect between 93.4 and 107.7%. The developed method was applied to a situation of suspected duck poisoning at a local farm.

2

Value of hematological indices in ducks during their reproduction period

100%

Kontecka H. , Nowaczewski S. , Ksiazkiewicz J. , Witkiewicz K.

Animal Science. Scientific Papers of Agricultural University of Poznan

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2006

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tom 08

3

Phenotypic coefficients of correlation between selected blood haematological indices and musculature traits in Muscovy ducks

100%

Wilkiewicz-Wawro E. , Wawro K. , Lewczuk A. , Michalik D.

Polish Journal of Natural Sciences

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2002

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tom 12

4

Effect of age and sex on feed utilization and slaughter value of ducks

100%

Wilkiewicz-Wawro E. , Bochno R. , Szeremeta J.

Natural Sciences

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2000

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tom 04

5

Variations of ertyhrocyte histone H1 subtypes in a muscovy duck population

100%

Kowalski A. , Palyga J. , Gornicka-Michalska E.

Cellular and Molecular Biology Letters

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2002

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tom 07

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nr Suppl.

6

Effect of goose parvovirus and duck circovirus coinfection in ducks

86%

Liu J. , Yang X. , Hao X. , Feng Y. , Zhang Y. , Cheng Z.

Journal of Veterinary Research

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2020

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tom 64

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nr 3

7

Developmental changes of the ultrastructure of the lingual nail in domestic duck (Anas platyrhynchos f. domestica) during embryonic period

86%

Skieresz-Szewczyk K. , Jackowiak H. , Ratajczak M.

Acta Biologica Cracoviensia. Series Botanica. Supplement

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2016

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tom 58

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nr 1

8

Examination of growth hormone (GH) gene polymorphism and its association with body weight and selected body dimensions in ducks

86%

Mazurowski A. , Frieske A. , Kokoszynski D. , Mroczkowski S. , Bernacki Z. , Wilkanoska A.

Folia Biologica

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2015

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tom 63

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nr 1

9

Ejaculate production and interspecies hybridization of ducks

86%

Csuka J. , Skrobanek P. , Baumgartner J.

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1997

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tom 31

10

Effect of rearing system on the microbiological quality of Pekin P44 and Muscovy MR71 ducks bowel

86%

Damaziak K. , Michalczuk M. , Kurek A.

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

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2014

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tom 53

EN

In this study, we analyzed the effect of rearing system of ducks on the quantitative and qualitative composition of their gut microfl ora. 180 ducks and 180 drakes of Pekin 44 and Muscovy MR71 lines were kept in the intensive system on litter; the same number of birds was kept in the semi-intensive system. In the latter, starting from the 3rd week of life the birds were allowed to use free ranges. After slaughter of 15 ducks and 15 drakes from each group, their intestinal digesta was subjected to microbiological analysis. The possibility of using the free ranges had a positive effect on the quantitative and qualitative composition of intestinal microfl ora of these birds. The count of aerobic mesophilic heterotrophs in the intestinal digesta of ducks was higher in the case of birds kept in the semi-intensive system. More benefi cial results were achieved in the case of Muscovy ducks considering mainly the coli/lacto ratio which was the lowest (0.08) in this group for both sexes kept on free range. Noteworthy is also that no pathogenic bacteria of the genera: Salmonella, Proteus, Pseudomonas, Staphylococcus, Clostridium perfringens and Escherichia coli were found in any of the analyzed samples.

PL

Wpływ systemu utrzymania na jakość mikrobiologiczną jelit kaczek Pekin P44 i piżmowych MR71. W badaniach analizowano wpływ systemu utrzymania kaczek na ilościowy i jakościowy skład mikroflory jelitowej. Po 180 kaczek i 180 kaczorów Pekin P44 i piżmowych MR71 utrzymywano w systemie intensywnym na ściółce i taką samą ilość ptaków w systemie półintensywnym. W systemie półintensywnym ptaki od 3. tygodnia życia mogły korzystać z ograniczonych wybiegów. Po uboju 15 kaczek i 15 kaczorów z każdej grupy wykonano analizę mikrobiologiczną treści ich jelit cienkich. Możliwość korzystania z wybiegów miało pozytywny wpływ na jakościowy i ilościowy skład ich mikroflory jelitowej. Liczebność tlenowych mezofilnych bakterii heterotroficznych, w treści jelita cienkiego kaczek, była wyższa dla ptaków utrzymywanych w systemie półintensywnym. Korzystniejsze wyniki stwierdzono w przypadku kaczek piżmowych, głównie odnośnie współczynnika coli/lacto, który był najniższy (0,08) u tej grupy dla obu płci utrzymywanych na wybiegu. Na szczególną uwagę zasługuje również fakt, iż nie stwierdzono obecności bakterii chorobotwórczych z rodzaju Salmonella, Proteus, Pseudomonas, Staphylococcus, Clostridium perfringens i Escherichia coli w żadnej z badanych prób.

11

Production and trade of duck products in global view

86%

Molnar S.

Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu

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2017

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tom 19

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nr 3

EN

Duck typically represents a smaller proportion in the poultry meat production of the world. However, certain European, as well as Eastern and South Asian countries produce a significant amount of duck meat. In the recent decades, production significantly increased both in these regions and worldwide. This study focuses on the international situation of the duck sector, as well as changes in production and trade trends. In addition, RCA indexes were used to examine the comparative advantages of duck meat and meat products in the world market of waterfowl products in the case of the most significant exporting countries of the world. It can be concluded that even though certain exporting countries have various trade and competitive advantages in the case of different products, other regions must face disadvantages.

PL

W artykule przedstawiono międzynarodową sytuację sektora produktów kaczych, a także zmian w trendach produkcyjnych i handlowych mięsem kaczym. Mimo że kaczki stanowią nieduży udział w produkcji mięsa drobiowego na świecie, w ostatnich dziesięcioleciach produkcja tego mięsa znacznie wzrosła. Tendencję wzrostową produkcji mięsa kaczego odnotowano zarówno na świecie, jak i w krajach wschodniej Europy i w krajach południowoazjatyckich. W celu porównania zalet mięsa kaczego i innych produktów mięsnych z ptactwa wodnego na światowym rynku produktów w przypadku najbardziej znaczących krajów eksportujących wykorzystano wskaźniki RCA .

12

The histogenesis of lingual glands in the domestic duck (Anas platyrhynchos f. domestica) during embryonic development

86%

Skieresz-Szewczyk K. , Jackowiak H.

Acta Biologica Cracoviensia. Series Botanica. Supplement

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2014

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tom 56

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nr 1

13

Evaluation of two-peak laying period in Muscovy duck

86%

Kriz L. , Ondrackova J. , Klecker D. , Bunesova A. , Richtrova A.

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1997

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tom 31

14

Production results of White and Black-and-White Muscovy ducks fed with different feed mixtures

86%

Gorski J. , Witak B.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica

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2003

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tom 21

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nr 2

15

A rare allelic isoform Z2 of erythrocyte histone H1 in a Pekin duck population

86%

Palyga J. , Kowalski A. , Gornicka-Michalska E. , Kisiel T. , Ksiazkiewicz J.

Cellular and Molecular Biology Letters

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2002

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tom 07

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nr Suppl.

16

Influence of restricted feeding on growth performance and slaughter value of young ducks

86%

Szeremeta J. , Bochno R. , Brzozowski W.

Polish Journal of Natural Sciences

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2002

|

tom 10

17

Description of the mallard duck [Anas platyrhynchos] karyotype

86%

Wojcik E. , Smalec E.

Folia Biologica

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2007

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tom 55

|

nr 3-4

18

Structural analysis of upper respiratory tract in Anas platyrhynchos (L., 1758) and Clangula hyemalis (L., 1758)

72%

Pierko M.

Electronic Journal of Polish Agricultural Universities. Series Biology

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2010

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tom 13

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nr 4

19

Przydomowy odchow kaczek

72%

Kwiatanowska J.

Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała

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1997

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nr 05

18-19

20

Effect of in ovo injection of vitamin C during incubation on hatchability of chickens and ducks

72%

Nowaczewski S. , Kontecka H. , Krystianiak S.

Folia Biologica

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2012

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tom 60

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nr 1-2