Wyniki wyszukiwania

1

Wpływ liczby świń w kojcu na ich zachowanie się w pierwszych trzech tygodniach tuczu

100%

Ormian M., Ruda M.

Prace i Materiały Zootechniczne. Zeszyt Specjalny

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2004

|

nr 15

2

Próba określenia zależności socjalnych w grupie 40 loch żywionych ze „stacji paszowej”

100%

Klocek C., Kalinowska B., Kapelanski W., Dybala J.

Roczniki Naukowe Zootechniki. Suplement

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2003

|

tom 17

|

nr 2

3

Zachowanie się psów poza kontrolą

84%

Kaleta T.

Magazyn Weterynaryjny

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2018

|

tom 27

|

nr 04

4

Homo religiosus - ewolucyjna zagadka

84%

Pawlowski B.

Wiedza i Życie

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2013

|

nr 03

5

Homoseksualne zachowania wśród zwierząt

84%

Kondraciuk K., Kwiatkowska M., Uchmanski J.

Wiadomości Ekologiczne

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2011

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tom 57

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nr 1

The article is about homosexual behavior in animal. This behavior consists of various sexual activities such as the copulation of individuals having same sex, mutual masturbation, the common care over the progeny or couple formation. Homosexual behaviors have been documented in different animal groups, such as birds, reptiles, mammals, insects and spiders. The homosexuality among animals could develop under natural selection as an adaptation. For instance it can reduce of the intraspecific aggression, settle of the hierarchy in the group of non-related individual or it can be directly connected with heterosexual reproductive success. Homosexual behavior can also be a result of animal error living in unusual situation, for instance in captivity.

6

Poziom hormonow stresowych u prosiat w roznej pozycji hierarchicznej w grupach

84%

Fitko R., Kowalski A., Zielinski H.

Medycyna Weterynaryjna

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1992

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tom 48

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nr 02

66-68

Out of 28 days old piglets qualified for fattening there were selected 10 dominant and 10 subordinate animals in which the level of catecholamines and cortisole was tested in the blood of the animals after their joining and later after 3 and 7 days. The studies revealed the appearance of emotional and somatic stress: it was decreasing slowly within 7 days in the dominant group, while in the subordinate group the somatic stress was unchanged to the end of the experiment and the signs of emotional stress appeared at day 3 and 7. The findings indicate the possibility of early adaptation of dominant individuals in contrast to subordinate ones to permanent acting stressors.

7

Gawron (dawniej glapa)

67%

Kruszewicz A.

Ogrody, Ogródki, Zieleńce

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2007

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nr 12

8

Samoblokujące się kojce

67%

Maj-Kaldonska A.

Rada: Rolnictwo, Aktualności, Doradztwo, Analizy. Miesięcznik Wojewódzkiego Ośrodka Doradztwa Rolniczego w Bratoszewicach

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2013

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nr 10

9

The effect of sibling competition on the subsequent social status of juvenile North American Black-billed Magpies Pica pica hudsonia

67%

Trost C. H., Webb C. L.

Acta Ornithologica

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1997

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tom 32

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nr 1

111-119

Hatching asynchrony results in competition between the nestling Black-billed Magpies Pica pica hudsonia and is of interest because long-lasting social ranks are probably initiated during the nestling and fledgling stages. The first-hatched birds grow at a significantly faster rate than their day-2 siblings. Flocks of young males and separate flocks of young females were held in an aviary until their dominance relations were known. Strictly linear hierarchies were quickly established among the young males, but females did not exhibit linear hierarchies. The only morphological correlate with dominance was bill length, and then only in the males. During the course of two years brother pairs were entered together into an aviary flock of five or more wild caught, non-sibling hatching year (HY) males. Supplantings were scored until a linear dominance hierarchy was compiled. Most males who were heavier at fledging were also dominant to their smaller brother(s) four to eight months later. It is concluded that the relative nest rank (i.e. hatching order and fledging weight) affects dominance relationships among male siblings. During the winter we observed dominance interactions of a wild flock of Magpies. A linear dominance matrix with less than 2% reversals was constructed from 547 interactions for 19 HY males. Of these males, 13 were from known nests and none were siblings. The weight ranks of these 13 males at fledging were split and compared. The mean nest rank of the top (rank = 0.94) and bottom (rank = 0.61) birds differed significantly. Hatching order of males may affect relationships even between nonsiblings. Young males apparently know each other individually, and this may indicate flock stability in this aggressive age class. Young male Magpies often take risks near predators in an apparent attempt to advertise their status, and perhaps gain social recognition. It appears that sibling competition is a factor that may determine which birds stay in the natal area and fledging dominance rank has fitness correlates.

10

Zycie w chmarze

67%

Michalak B.

Brać Łowiecka

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2007

|

nr 08

22-23

11

Cukiernia w restauracji

67%

Cukiernictwo i Piekarstwo

|

2009

|

tom 13

|

nr 05

12

Kiedy laczyc lochy?

59%

Top Agrar Polska

|

2003

|

nr 10 Top Swinie

8-9

13

Żegluga morska i handel między-wyspowy Karolińczyków Centralnych. Notaty z podróży po Oceanie Wielkim

43%

Kubary J. S.

Wszechświat

|

1882

|

tom 1

|

nr 16

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