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Tytuł:
Ząb morskiego krokodylomorfa z jury Wyżyny Krakowsko-Częstochowskiej
A tooth of a marine crocodylomorph from the Jurassic of the Cracow-Czestochowa Upland
Autorzy:
Zatoń, M.
Powiązania:
https://bibliotekanauki.pl/articles/2074514.pdf
Data publikacji:
2007
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
krokodylomorf
metriorynchidy
zęby
Polska
Crocodylomorpha
Metriorhynchidae
teeth
Polska
Opis:
An incomplete tooth-crown showing the features characteristic of marine crocodylomorphs of the family Metriorhynchidae has been found in glauconitic marls from the uppermost Callovian/lowermost Oxfordian of Ogrodzieniec, situated in the southern part of the Cracow-Czestochowa Upland. The precise taxonomic identification is not possible, but to date only the genus Metriorhynchus has been known from the Callovian. This is the first evidence of Metriorhynchidae in the Cracow-Czestochowa Upland (Polish Jura Chain).
Źródło:
Przegląd Geologiczny; 2007, 55, 11; 961-964
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Konzentrat-Lagerstätte-type carbonate concretions from the uppermost Bajocian (Middle Jurassic) of the Częstochowa area, South-Cental Poland
Autorzy:
Zatoń, M.
Marynowski, L.
Powiązania:
https://bibliotekanauki.pl/articles/2058808.pdf
Data publikacji:
2004
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Jurassic
Bajocjan
carbonate concretions
taphonomy
Lagerstätte
biomarkers
Opis:
Early-diagenetic calcitic concretions of latest Bajocian (parkinsoni Zone, bomfordi Subzone) age in the Polish Jura contain an extremely rich and well-preserved macrofauna. In addition to bivalves and brachiopods, there are numerous ammonites of the (sub)genera Parkinsonia, Nannolytoceras, Lissoceras (Lissoceras), L. (Microlissoceras), as well as rare representatives of Vermisphinctes, Strigoceras (Strigoceras) and Phylloceras. Carapaces of primitive prosopid crabs are found associated. Such a diverse and well-preserved fauna (previously unknown from Bajocian epicratonic deposits of the Polish Jura), is typical of Konzentrat-Lagerstätte-type deposits. The random distribution of the concretions in exposure and the small size of the fauna may suggest that all remains were concentrated by bottom-current action in small depressions on an uneven sea-floor. The presence of numerous small-sized ammonites may be regarded as reflecting post-spawning assemblages which sufferedmass-mortality. Although cause of their death remains unclear, storm events are a possibility. Such depressions acted as natural “traps” as well as constituted a size-limiting factor for the accumulating fauna. The fact that all elements are well preserved indicates brief post-mortem transport and rapid burial, followed by early diagenesis that protected them from compaction. The absence of such fossil-rich concretions higher in the Middle Jurassic sequence clearly shows that our current assessment of biotic diversity may be an underestimate. The carbonate concretions contain a predominantly terrestrial type of organic matter (OM). Samples analysed are extremely immature, but early diagenetic transformations of OM occurred prior to concretion formation.
Źródło:
Geological Quarterly; 2004, 48, 4; 339--350
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mikrokonchidy - mało znana grupa kopalnych organizmów i ich występowanie w górnym karbonie Górnego Śląska
Microconchids - a little known group of Carboniferous of the Upper Silesia fossil organisms and their occurrence in the Upper
Autorzy:
Zatoń, M.
Mazurek, D.
Powiązania:
https://bibliotekanauki.pl/articles/2074846.pdf
Data publikacji:
2011
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Spirorbis
mikrokonchidy
Tentaculita
karbon
Polska
Microconchida
Carboniferous
Polska
Opis:
The present article concerns a characteristics of enigmatic encrusting organisms of the order Microconchida (microconchids), similar to polychaetes of the genus Spirorbis, as well as a description of their finds from the Upper Carboniferous of the Upper Silesia region, southern Poland. The microconchids described here may represent the genus Microconchus. Most of the individuals encrust terrestrial flora and bivalve shells, and thus they certainly inhabited freshwater or, at most, brackish water environment. Similarly as the Recent polychaetes of the genus Spirorbis, the microconchids described here occur in association composed of both adult and juvenile individuals. The juveniles, however, dominate, what may indicate they have died due to some stress conditions (high rate of deposition and/or low oxygen content in the water). The microconchids are poorly-preserved. The original calcitic mineralogy of their tubes was replaced by phases similar to lead sulfide and dolomite.
Źródło:
Przegląd Geologiczny; 2011, 59, 2; 157-162
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Middle Jurassic cyclostome bryozoans from the Polish Jura
Autorzy:
Zaton, M
Taylor, P.D.
Powiązania:
https://bibliotekanauki.pl/articles/20460.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
Middle Jurassic
cyclostome bryozoan
Polish Jura
bryozoan
Bryozoa
Cyclostomata
Bajocian
Bathonian
Microeciella annae
Microeciella kuklinskii
Microeciella maleckii
Microeciella mokrskoensis
Microeciella magnopora
Reptomultisparsa harae
Hyporosopora bugajensis
Stenolaemata
Opis:
New collections of bryozoans from the Middle Jurassic (Late Bajocian and Bathonian) of Poland add significantly to our knowledge of the diversity and biogeography of the Cyclostomata at a time when they were the dominant bryozoan order in the fossil record. A total of 16 species and one form−genus (“Berenicea”) are present. Most are encrusters, predominantly on hiatus concretions. A single erect species was found in deposits interpreted as regurgitates of a marine vertebrate. The following new species are described: Microeciella annae sp. nov., M. kuklinskii sp. nov., M. maleckii sp. nov., M. mokrskoensis sp. nov., M. magnopora sp. nov., Reptomultisparsa harae sp. nov., and Hyporosopora bugajensis sp. nov. The taxonomic importance of the morphology of both the gonozooids and pseudopores is underlined, especially for encrusting species of the “Berenicea” type that are otherwise difficult to distinguish from one another. The described bryozoan assemblage encrusting hiatus concretions from the Polish Middle Jurassic is the richest that has been documented globally from this kind of substrate.
Źródło:
Acta Palaeontologica Polonica; 2009, 54, 2; 267-288
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphology and palaeoecology of new, non-marine microconchid tubeworm from Lower Carboniferous (Upper Mississippian) of West Virginia, USA
Autorzy:
Zatoń, M.
Peck, R. L.
Powiązania:
https://bibliotekanauki.pl/articles/191946.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
microconchids
Mississippian
Carboniferous
encrusters
palaeoecology
fresh waters
Opis:
A new species of a non-marine microconchid (Tentaculita) tubeworm, Microconchus hintonensis, from the Lower Carboniferous (Upper Mississippian, Chesterian) of West Virginia, USA, is described. Non-marine microconchids occur abundantly in the deposits of the Bluefield, lower Hinton, Princeton and Bluestone Formations of the Mauch Chunk Group, where they are either associated with land plant remains and bivalve shells, or are preserved loose in the host sediment. The specimens attached to plant remains and bivalve shells, are poorly preserved, but those occurring loose in the deposits are well-preserved in three dimensions. The interpretation pre sented here, is that the loose specimens of Microconchus hintonensis sp. nov. also originally encrusted plants (land plants, algae) and bivalve shells, but became detached after substrate degradation and dissolution. The association of land plant remains, charophyte gyrogonites, bivalves, ostracodes, conchostracans, and fish teeth and scales, and the concomitant lack of strictly marine fossils indicate that the microconchid-bearing deposits of the lower Hinton, Princeton and Bluestone Formations were deposited in fresh-water environments. Microconchus hintonensis sp. nov. is regarded as a highly fecund, opportunistic species that in large numbers colonized every available substrate in its habitat. Its abundance in the deposits investigated indicates that the species was welladapted to the environments it occupied, even during episodes of higher sedimentation rates and/or competition with other soft-bodied encrusters. During such episodes, microconchids were able to grow vertically by uncoiling and elevating their tubes, in order to escape potential burial and/or overgrowth by other encrusters.
Źródło:
Annales Societatis Geologorum Poloniae; 2013, 83, 1; 37-50
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Framboidy pirytowe jako wskaźniki paleośrodowiska
Pyrite framboids as paleoenvironmental indicators
Autorzy:
Zatoń, M.
Rakociński, M.
Marynowski, L.
Powiązania:
https://bibliotekanauki.pl/articles/2074589.pdf
Data publikacji:
2008
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
framboidy pirytowe
redoks
warunki środowiskowe oksyczne
warunki środowiskowe dysoksyczne
warunki środowiskowe euksyniczne
jura
dewon
Polska
pyrite framboids
redox
euxinia
anoxia
dysoxia
Jurassic
Devonian
Polska
Opis:
The problemof application of pyrite framboids in reconstructions of the redox conditions is presented. The characteristics of pyrite framboids, their origin and principles of application in paleoenvironmental interpretations are given. The pyrite framboid diameter distribution as indicators of redox conditions was presented on the examples of the Middle Jurassic (Upper Bajocian-Lower Bathonian) ore-bearing clays of the Polish Jura, and Upper Devonian (Middle and Upper Famennian) dark grey and black shales from Kowala (Holy Cross Mountains). It has been shown, that during the sedimentation of the ore-bearing clays, the pyrite framboids formed in the sediment, below the oxic water column; however, some episodic oscillation around the dysoxic conditions cannot be entirely excluded. During the sedimentation of the Middle Famennian dark grey shales, the redox conditions at the sea-floor oscillated around dysoxia. In both examples, the framboids are characterized by wide range of their diameters and the presence of large, >10 "my"m, framboids. On the contrary, the Upper Famennian black shales, representing the Hangenberg event, were deposited below the euxinic conditions in the water column. It is indicated by a high frequency of small-size framboids, far below 6 "my"m in diameter, and the lack of the large ones. The overlying shales, on the other hand, show the transition to more oxic conditions. The redox conditions interpreted above are in agreement with the independent biomarker analyses and paleontological observations.
Źródło:
Przegląd Geologiczny; 2008, 56, 2; 158-164
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Konkrecje hiatusowe z iłów rudonśnych Wyżyny Krakowsko-Częstochowskiej
Hiatus concretions fromthe ore-bearing clays of the Cracow-Czestochowa Upland (Polish Jura)
Autorzy:
Zatoń, M.
Marynowski, L.
Bzowska, G.
Powiązania:
https://bibliotekanauki.pl/articles/2074474.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
konkrecje hiatusowe
Wyżyna Krakowsko-Częstochowska
hiatus concretions
Middle Jurassic
Cracow-Częstochowa Upland
borers
encrusters
Opis:
Hiatus concretions are arly-diagenetic sedimentary bodies, which in their history of formation, underwent exhumation during sedimentation break and/or erosion of sea-floor. Then they were colonized by various encrusters and borers, before they were buried again. Within Middle Jurassic (Bajocian through Bathonian) clays, hiatus concretions occur in four localities in the Cracow-Częstochowa Upland (south and central Poland): Ogrodzieniec, Bugaj, Mokrsko and Krzyworzeka. Preliminary data about their mineralogy, organic geochemistry and palaeoecology is given. Mineralogical analyses showed, that except dominant high Mg-calcite (up to 87.10% of total carbonates), concretions possess minor amounts of such compounds as quartz, clay minerals (kaolinite and illite), pyrite, siderite or Mg-kutnahorite. However, high differences are observed between total organic carbon contents of concretions (TOC=0.46%) and surrounded clays (TOC = 2.16%), but their molecular composition is similar. Most of identified biomarkers are of terrestrial origin. In clay lithology, the hiatus concretions are the only sedimentary bodies that clearly mark the sedimentation pauses (hiatuses). In the investigated area, they form more or less continuous horizons. The concretions are calcitic, possessing various encrusting fauna such as bryozoans, oysters and oyster-like bivalves, serpulids, solitary corals and foraminifers. They often post-date the borings, belonging to such ichnogenera as Gastrochaenolites, Trypanites and Entobia. Some of the nodules show distinct transition from firmground (characterized by the presence of Glossifungites ichnocoenosis) to hardground (presence of Trypanites ichnocoenosis), pointing to the fact, that they formed at, or very close to, the sediment-water interface. Some concretions, like those from Bugaj and Mokrsko, are characterized by their high diversity of hard bottom communities. Those concretions are also irregular in shape; others, like those from Ogrodzieniec and Krzyworzeka, possess lower diversity. The concretions from Krzyworzeka are especially dominated by the borers, while the encrusters are sparse and not diverse. Those nodules that are wide and flat tend to be more bored on one surface only, while those that are more roundish, are bored on both sides more evenly. The degree of diversity is probably correlated with physical disturbance, causing the rolling and overturning of the exhumed concretions in the littoral zone. On the other hand, the overall diversity could be lowered due to destructive abrasion either of the shallowest borings, echinoid/gastropod scratch marks and shells of nestling bivalves, as well as more delicate epilithozoans.
Źródło:
Przegląd Geologiczny; 2006, 54, 2; 131-138
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comment on "Palaeoenvironmental control on distribution of crinoids in the Bathonian (Middle Jurassic) of England and France" by Aaron W. Hunter and Charlie J. Underwood
Autorzy:
Salamon, M.A.
Gorzelak, P.
Zaton, M.
Powiązania:
https://bibliotekanauki.pl/articles/23363.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
discussion
paleoenvironment control
distribution
crinoid
Bathonian
Middle Jurassic
England
France
Źródło:
Acta Palaeontologica Polonica; 2010, 55, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In quest of cyrtocrinid origins: Evidence from Late Triassic ossicles from the Tatra Mountains
Autorzy:
Salamon, M A
Gorzelak, P.
Zaton, M.
Powiązania:
https://bibliotekanauki.pl/articles/23108.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
cyrtocrinid ossicle
Polska
Triassic
Tatras Mountains
paleontology
Cyrtocrinida
Late Triassic
Opis:
We report cyrtocrinid (Crinoidea) ossicles from the Rhaetian (Late Triassic) of the Tatra Mountains (southern Poland). The columnals are high, the facets are covered with thick crenulae and the latera are concave. Such features of symplectial articulation and latera distinguish them from the columnals of other Triassic crinoids (i.e., millericrinids and encrinids) and therefore we consider they belong to Cyrtocrinida. The oldest representatives of cyrtocrinids were known from the Early Jurassic, therefore the presented material constitutes the oldest world record of these crinoids to date. We speculate that perturbations related to the global mid−Carnian extinction combined with predation intensity observed in the Middle– Late Triassic have been involved in early origin of Cyrtocrinida.
Źródło:
Acta Palaeontologica Polonica; 2009, 54, 1; 171-174
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Middle and Late Jurassic tube-dwelling polychaetes from the Polish Basin: diversity, palaeoecology and comparisons with other assemblages
Autorzy:
Słowiński, J.
Vinn, O.
Jäger, M.
Zatoń, M.
Powiązania:
https://bibliotekanauki.pl/articles/31341366.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
Sabellidae
Serpulidae
taxonomy
tubeworm
Mesozoic
Polska
Middle Jurassic
Late Jurassic
tube-dwelling polychaete
diversity
paleoecology
Źródło:
Acta Palaeontologica Polonica; 2022, 67, 4; 827-864
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gniazdowe akumulacje szczątków fauny w środkowojurajskich iłach rudonośnych Wyżyny Krakowsko-Częstochowskiej-wnioski paleobiologiczne
Nest-like accumulations of faunal remains in the Middle Jurassic ore-bearing clays of the Kraków-Czestochowa Upland and their palaeobiological implications
Autorzy:
Zatoń, M.
Salamon, M. A.
Marynowski, L.
Zatoń, R.
Powiązania:
https://bibliotekanauki.pl/articles/2074537.pdf
Data publikacji:
2007
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
średnia Jura
Polska
fragmenty skorup
szczątki organiczne
Middle Jurassic
Polska
predation
shell fragments
shelly fossils
Opis:
Distinct faunal accumulations in the uppermost Bajocian/lowermost Bathonian, lowermost and Middle Bathonian of the Polish Jura (south-central Poland) have been detected. The fossils are densely packed in the centre of the accumulations and more or less dispersed in their margins. The accumulations vary in size, but all are rich in various groups of organisms, of which the molluscs (mainly bivalves) and echinoderms predominate. The echinoderms are all disarticulated, and shelly fauna occur as angular fragments with sharp edges, of random sizes and without any signs of abrasion. The different sizes of the fossil remains, from tiny echinoderm ossicles or juvenile shelly fauna to medium-sized shell fragments or belemnite rostra, exclude any transportation and thus sorting. Worth of noting is the occurrence of similar faunal groups in each accumulation. The general shape and composition of the accumulations, as well as their taphonomical features, especially the angularity of shell fragments, point to durophagous (shell-crushing) predation rather than physical processes. The various organisms may indicate that the potential predator (most probably fish) fed on various invertebrates. The indigestible particles were later regurgitated forming the accumulations discussed. The presence of various epibionts on the fossil fragments indicate,that they rested upon the sea-floor for some time-span after they had been regurgitated. Then the scavengers, as well as current action or water movements, have been responsible for dispersion of some of the fossils, as is well-visible at the margins of the investigated accumulations..
Źródło:
Przegląd Geologiczny; 2007, 55, 5; 424-429
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Late Cretaceous gastropod egg capsules from the Netherlands preserved by bioimmuration
Autorzy:
Zaton, M.
Taylor, P.D.
Jagt, J.W.M.
Powiązania:
https://bibliotekanauki.pl/articles/21441.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Late Cretaceous
gastropod
egg capsule
Netherlands,The
bioimmuration
Cretaceous
paleontology
Opis:
Clusters of gastropod egg capsules, inferred to be of neritoids and attached to the inner shell wall of the ultimate whorl of a large volutid gastropod, are here recorded from the upper Nekum Member (Maastricht Formation; late Maastrichtian) of the ENCI−Heidelberg Cement Group quarry, St Pietersberg (Maastricht, southeast Netherlands). Because the aragonitic shell of the volutid has dissolved, the outlines of the egg capsules are now revealed on the steinkern of indurated biocalcarenite, having been subsequently overgrown by cheilostome bryozoan colonies and preserved as mould bioimmurations. This represents the first example of gastropod eggs preserved through bioimmuration, as well as the first record of gastropod eggs from the Cretaceous.
Źródło:
Acta Palaeontologica Polonica; 2013, 58, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palynology and microfacies of Lower Devonian mixed carbonate-siliciclastic deposits in Podolia, Ukraine
Autorzy:
Filipiak, P.
Zaton, M.
Szaniawski, H.
Wrona, R.
Racki, G.
Powiązania:
https://bibliotekanauki.pl/articles/19979.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
palynology
microfacies
Lower Devonian
Devonian
carbonate-siliciclastic deposit
Podolia
Ukraine
stratigraphy
cuticle
arthropod
Opis:
Investigation of mixed carbonate−siliciclastic Lower Devonian deposits have been carried out in the Ivanye Zolote and Ustechko sections in Podolia, Ukraine. Based on palynomorph evidence, the age of the samples studied is late Lochkovian, not older than the NM Oppel Miospore Zone, specifically the Si Lineage Zone. The presence of acritarchs and chitinozoans points to dominantly marine depositional conditions. However, a regressive environmental change toward more brackish conditions is indicated by a decrease in the taxonomic diversity of acritarchs in the topmost samples, the simultaneous disappearance of chitinozoans, and an increase in leiosphaerid frequency. Furthermore, evolution of limestone microfacies demonstrates a progressive transition from a shrinking marine basin toward a brackish, storm−affected muddy lagoon, manifested by recurrent profusion of impoverished, mostly opportunistic and euryhaline shelly benthos (nuculanid bivalves, leperditicopids and other ostracods, terebratulid brachiopods), chaetetid demosponges and diverse ichthyofauna. The association of plant (mainly nematophytes and some tracheids) and animal (eurypterid, ?scorpion, and possibly other arthropod) remains points to the presence of nearby Early Devonian wetland vegetation, providing food and shelter for various semi−aquatic and other terrestrial arthropods.
Źródło:
Acta Palaeontologica Polonica; 2012, 57, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic basis of coat colour inheritance in ferrets (Mustela putorius furo): Pedigree analysis
Dziedziczenie barwy okrywy włosowej u fretek (Mustela putorius furo) na podstawie analizy rodowodów
Autorzy:
Grabolus, D.
Wacławik, P.
Zatoń-Dobrowolska, M.
Powiązania:
https://bibliotekanauki.pl/articles/2614118.pdf
Data publikacji:
2019
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
ferret
Mustela putorius
Mustelidae
domestic animal
fur colour
coat colour
inheritance
pedigree analysis
genotype
Źródło:
Acta Scientiarum Polonorum. Zootechnica; 2019, 18, 3; 27-33
1644-0714
Pojawia się w:
Acta Scientiarum Polonorum. Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza wpływu komponentu matczynego i ojcowskiego oraz sezonu wykotu na wyniki reprodukcyjne samic królików rasy nowozelandzkiej białej i kalifornijskiej
The influence of maternal and paternal components and breeding season on the reproductive results of New Zealand White and Californian female rabbits
Autorzy:
Pycha, J.
Zaton-Dobrowolska, M.
Palka, S.
Kmiecik, M.
Powiązania:
https://bibliotekanauki.pl/articles/2119735.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Zootechniczne
Tematy:
rozród królików
mioty
odchów królików
mieszańce
krzyżowanie
powtarzalność
Opis:
W pracy przeprowadzono analizę miotów pochodzących od samic królików rasy nowoze- landzkiej białej (NZW) (n=55) i kalifornijskiej (CAL) (n=12) krytych samcami ras: belgijski olbrzym szary (FG), kalifornijska (CAL), burgundzka (BUR) oraz mieszańcami rasy nowo- zelandzkiej białej i belgijski olbrzym szary (NZW×FG). Zbadano czy istotny dla wyników reprodukcyjnych jest wpływ rasy matki, sezonu wykotu lub zastosowanego komponentu oj- cowskiego. Dokonano podziału samic w zależności od liczby miotów uzyskanej w okresie ob- jętym badaniami, otrzymując trzy grupy badawcze: samice od których uzyskano dwa mioty (n=21), samice od których uzyskano trzy mioty (n=15) oraz wszystkie samice (niezależnie od liczby uzyskanych miotów, n=67). Dla pierwszej grupy stwierdzono istotny wpływ rasy matki na liczebność młodych odsadzonych, średnio 5,20 oraz 7,33 sztuk odpowiednio dla rasy nowozelandzkiej białej i kalifornijskiej. Wykazano również, że w tej grupie najwyższą liczebność młodych odsadzonych uzyskiwano dla miotów z krzyżowań NZW×CAL (10,50). Wpływ rasy matki na efektywność odchowu stwierdzono w drugiej grupie samic, wykazując istotnie wyższą wartość dla samic rasy nowozelandzkiej białej (90,20%), niż dla samic rasy kalifornijskiej (69,84%). Analizy wszystkich uzyskanych w badaniu miotów wykazały istotne różnice pod względem liczebności młodych żywo urodzonych oraz odsadzonych w zależności od rasy matki (rasa nowozelandzka biała odpowiednio 6,59 oraz 6,34 młodych, rasa kalifor- nijska odpowiednio 7,71 oraz 7,50 młodych). W tej grupie zwierząt wykazano również, że zimą odchowywanych jest istotnie więcej królicząt (4,65) niż jesienią (2,00). Jednocześnie stwierdzono, że samice NZW kryte samcami FG dają mniej żywych królicząt w miocie (5,85) niż samice CAL kryte samcami BUR (10,00). Różnice zaobserwowano również w liczebności młodych odsadzonych, w miotach czystorasowych odchowanych było średnio 2,04 królicząt, natomiast w miotach z krzyżowań międzyrasowych od 5,39 do 10 królicząt. Oszacowane współczynniki powtarzalności dla samic, od których otrzymano trzy mioty wynosiły dla liczebności młodych urodzonych ogółem 0,36, natomiast dla liczebności żywo urodzonych
Źródło:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego; 2020, 16, 1; 37-49
1733-7305
Pojawia się w:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 19

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