Wyniki wyszukiwania - Biblioteka Nauki

1

Dwa legi zaganiacza Hippolais icterina podczas jednego sezonu legowego

100%

Maliczak J. , Kuzniak S.

Notatki Ornitologiczne

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2004

|

tom 45

|

nr 3

195-196

2

Polimorfizm białek surowicy krwi kur bażancich w sezonie rozrodczym

86%

Dziedzic R.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica

|

1988

|

tom 06

3

Aktywnosc inhibitora trypsyny w plazmie nasienia lisa polarnego w sezonie rozrodczym

86%

Stasiak K. , Janicki B.

|

tom 63

|

nr 08

990-993

EN

The aim of this work was to determine the activity of the akrosin inhibitor on the basis of depressing the tripsin activity of polar fox (Alopex lagopus) semen and to follow the changes that affect these properties throughout the whole reproductive season. Additionally, the molecular forms of the inhibitor were electrophoretically separated. The research covered 126 ejaculates obtained manually seven times from 18 polar foxes (at intervals of 10-12 days). The highest inhibitor activity was observed in the seminal plasma from the ejaculates obtained in the first sample, the lowest results were characteristic of the fifth sample. The lowest activity of the akrosin inhibitor, determined on the basis of depressing the tripsin activity, indicates either the weakest protection of the semen proteins along with the whole reproductive system from the influence of the akrosin devoid of damaged acrosomes or the already initiated process of proteolysis.

4

Biologia rozrodu sarny

86%

Kozdrowski R. , Dzieciol M. , Dubiel A.

Medycyna Weterynaryjna

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2005

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tom 61

|

nr 11

1242-1244

5

Wyniki reprodukcyjne elitarnych klaczy wielkopolskich z uwzglednieniem sezonow rozplodowych

72%

Budzynski M. , Slomka Z. , Soltys L.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica

|

1992

|

tom 10

161-170

6

Pokarm pojdzki Athene noctua w sezonie legowym z krajobrazu rolniczego Niziny Mazowieckiej

72%

Romanowski J. , Zmihorski M.

Notatki Ornitologiczne

|

2006

|

tom 47

|

nr 3

203-206

7

Zmiany stezenia cynku, miedzi i zelaza w surowicy kwi i osoczu nasienia ogierow w sezonie kopulacyjnym

72%

Danek J. , Wisniewski E. , Krumrych W.

|

tom 434

|

nr 2

759-768

PL

Badania prowadzono na 6 ogierach rasy konik polski w wieku średnio 7 lat, wadze ciała 380- 410 kg, w czasie 7 miesięcy (grudzień-czerwiec), w dwóch sezonach kopulacyjnych. Dieta ogierów zawierała: 21.82 mg Zn , 7.20 mg Cu i 136.92 mg Fe w kg s.m. paszy w I sezonie, a 17.53 mg Zn, 6.50 mg Cu i 130.55 mg Fe w kg s.m. paszy w II sezonie. W czasie badań oznaczano stężenie Zn, Cu i Fe w surowicy krwi i osoczu nasienia. Badania wykazały istotne miesięczne zmiany w stężeniu Zn, Cu i Fe w surowicy i osoczu nasienia ogierów w obu sezonach kopulacyjnych.

EN

The studies were carried out on 6 stallions Polish ponies, at a mean of 7 years and 380-410 kg of b.w. The stallions were examine for seven months (December -June), in the two mating seasons. Their diet contained: 21.84 mg of Zn, 7.20 mg of Cu and 136.92 mg of Fe in 1kg d.m. in the first season, and: 17.53 mg of Zn , 6.50 mg of Cu and 130.55 mg of Fe in 1kg d.m. of fodder in the second season. The following estimations were made: Zn, Cu and Fe content of blood serum and seminal plasma. The investigation indicate significantly monthly variation in the serum and seminal plasma zinc, copper and iron concentration of stallions in the both mating seasons.

8

Wplyw wybranych czynnikow na rozrod owiec

72%

Solinska J. , Janicki B.

Zeszyty Naukowe Akademii Techniczno-Rolniczej w Bydgoszczy. Zootechnika

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2004

|

tom 34

35-42

9

Wzrost pecherzykow jajnikowych koz w okresach przejciowych miedzy sezonem rozrodczym i spoczynkiem plciowym

72%

Schwartz T. , Wierzchosc E.

Medycyna Weterynaryjna

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2004

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tom 60

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nr 08

877-879

10

Ocena jakosci i wartosci biologicznej nasienia lisow polarnych w okresie sezonu rozrodczego

72%

Janicki B. , Solinska J. , Lakota P.

Medycyna Weterynaryjna

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2006

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tom 62

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nr 09

1076-1079

EN

In connection with scarce publications on the qualities of polar fox semen and the mutual relationship between particular features of the semen, the undertaken research aimed at specifying selected polar fox semen indicators and determining possible mutual correlations between them. The semen for analysis was collected 7 times from 18 foxes during the period of their sexual activity. In total, 126 ejaculates were obtained and they underwent detailed assessment. The total ejaculate bulk was determined as well as mass spermatozoa movement, the proportional share of hyperactive spermatozoa (preceded by sperm rotation in the percoll’s gradient), ejaculate pH, fructose concentration, the proportional share of spermatozoa not connected with antisperm antibodies and the proportional share of spermatozoa characterized by structural differences. Additionally, the interdependence between the semen quantity and quality and the breeding effectiveness of the analyzed foxes was examined and assessed. The results of the research indicate the high biological quality of the semen investigated during the whole breeding period, which led to high breeding results. The interdependence between the over all effectiveness of the analyzed specimens and the spermatozoa movement, and the proportional share of hyperactive - i.e. ready to fertilize - spermatozoa was observed. This indicates that separating spermatozoa in the percoll’s gradient as a method of spermatozoa preparation allows for in vitro selection of specimens of the best qualities and is useful in case of applying insemination.

11

Breeding habitat selection in the Great Grey Shrike Lanius excubitor - the importance of meadows and spring crops

72%

Tryjanowski P. , Hromada M. , Antczak M.

Acta Ornithologica

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1999

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tom 34

|

nr 1

59-63

EN

Habitat composition of breeding territories, habitat use during foraging, and nest-site selection of the Great Grey Shrike Lanius excubitor were examined in western Poland during years 1998-1999. Meadows and spring crops occurred within territories more frequently than expected by their availability. Habitat utilisation during foraging was significantly non-random and shrikes appeared to prefer low vegetation. All of 27 nests were located along tree lines and edges of small woodlots (maximum 7 m), and neither deciduous nor coniferous trees were preferred (78% and 22%, respectively). Preferred habitats of Great Grey Shrikes are relatively uncommon in modern agricultural landscape. Lack of suitable habitats in intensively used farmland may be the most important reasons for shrike population decline over Europe. Wielkopolska region offers good breeding habitats and this species has more dense and stable population over here, than in other parts of Europe.

PL

Prace terenowe prowadzono w latach 1998-1999, głównie w okolicach Poznania, Odolanowa (powiat Ostrów Wlkp.) i Chocza (powiat Pleszew). Łąki i uprawy zbóż jarych były siedliskami występującymi liczniej w terytoriach srokosza, niż by to wynikało z ich udziału w krajobrazie (tab. 1). Wykorzystanie różnych siedlisk jako miejsc polowania było nielosowe (ryc. 1) i dzierzby wyraźnie preferowały tereny o niskiej roślinności. Wszystkie ze znalezionych 27 gniazd znajdowały się na skrajach (do 7 m) małych lasków położonych wśród łąk lub pól. Nie wykazano istotnej preferencji względem zakładania gniazd na drzewach liściastych lub iglastych (odpowiednio 78% i 22%), a gniazda były umieszczone na 9 gatunkach drzew (tab. 2). Prezentowane wyniki wskazują, że srokosz preferuje siedliska, które są coraz rzadsze we współczesnym krajobrazie rolniczym i właśnie brak odpowiednich siedlisk może być przyczyną regresu populacji tego gatunku w Europie. Z drugiej jednak strony, Wielkopolska charakteryzuje się bardzo intensywnym rolnictwem w porównaniu z resztą Polski, a właśnie tutaj w odpowiednich siedliskach srokosze występują w jednych z najwyższych w Europie zagęszczeniach i lokalne populacje należą do stabilnych.

12

Sezon rozrodczy kuropatw - okres decydujacy o ich liczebnosci

72%

Panek M.

Łowiec Polski

|

1993

|

nr 07

10-11

13

Zróżnicowanie masy ciała i masy jąder oraz jakości nasienia samców saren pochodzących z Wyżyny Lubelskiej w sezonie reprodukcyjnym

58%

Flis M. , Wrona Z. , Nozdryn-Plotnicki Z.

Medycyna Weterynaryjna

|

2017

|

tom 73

|

nr 07

EN

The aim of the study was to evaluate the morphology structure of sperm cells and quality of individual male deer obtained in the Lublin Upland during the 2015/2016 hunting season. The comparison included two separate periods of the hunting season resulting from varying physiological processes related to the estrus period of this species. In the first study with regards to the estrus period, males were characterized by an average of 1.6 grams less testicle weight, while body weight was 1.9 kg higher. Increasing the mass of the testicles in the reproductive season proceeded simultaneously with the increase in the share of properly developed sperm cells to the level of 70.6%. During the pre-estrus period, the percentage of spermatozoids with main and secondary defects accounted for almost 60%. Between the compared periods, an approximately 6.8% body weight loss occurred. The highest percentage of properly developed spermatozoids was present in deer aged 4 and 5 years. Regarding the greatest body weight loss in these two age groups, it is indicated that this age is the climax in terms of potential accession to the breeding and effective mating of females and the possibility of fertilization. Analysis of the relationship between body weight and testicle weight showed low and statistically insignificant correlation coefficients (rxy = 0.331-0.393) between those features.

14

Podstawowe wyznaczniki jakosci mlecza brzany [Barbus barbus] pozyskanego w sezonie rozrodczym po stymulacji hormonalnej za pomoca Ovopelu, Ovaprimu oraz hCG

58%

Cejko B. I. , Kucharczyk D. , Targonska K. , Glogowski J.

Komunikaty Rybackie

|

2009

|

nr 5

22-24

15

Wyniki pierwszego sezonu rozrodowego owiec

58%

Olechnowicz J. , Gut A.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1986

|

tom 303

16

Profile bialkowe plazmy nasienia lisa polarnego na poczatku i na koncu sezonu reprodukcyjnego

58%

Stasiak K. , Janicki B. , Kowalski R. , Glogowski J.

Medycyna Weterynaryjna

|

2008

|

tom 64

|

nr 11

1340-1343

EN

The aim of the studies was to assess the protein composition of the polar fox’s (Alopex lagopus L.) semen plasma with the use of the electrophoretic method (SDS-PAGE) and to find out whether there are statistically important differences in the protein profiles between the beginning and the end of the reproductive period and between the selected proteins and the semen traits. The examined material was the semen plasma obtained with the use of the manual method from nine nine-year-old polar foxes. Both in the plasma obtained at the beginning and at the end of the season ten protein fractions (10.9÷107.5 kDa) were distinguished. On the basis of the densitometric analysis of electrophoretic images, a quantitative decrease of multimolecular forms at the end of the reproductive period was observed. This may indicate either a decreasing synthesis of proteins in the reproductive system or partial proteolysis in progress. The analysis of correlations, in turn, indicated significant relationships (p < 0.05) between the masses of protein fractions (107.5 and 58.9 kDa) and the volume of the semen collected at the beginning of the season (r = -0.76 and r = -0.72 respectively): between proteins 74.8 and 34.9 kDa and the volume of the semen at the end of the season (r = 0.92 and r = 0.79 respectively), and also between proteins 58.9; 34.9; 27.0 and the percentage of the sperm with major flaws in the semen collected at the beginning of the reproductive season (r = 0.69; r = 0.89 and r= -0.76 respectively). Even though significant correlations between the plasma proteins and the traits of the semen obtained from young (one-year-old) individuals were observed, it is necessary to continue the research with reference to older animals (two-year-old foxes).

17

Przygotowanie klaczy do sezonu rozrodczego

58%

Tischner M.

|

nr 4

6-12

18

Cykl plciowy i sztuczne unasiennianie bydla miesnego

58%

Kozdrowski R. , Dzieciol M. , Bednarski M.

Weterynaria w Terenie

|

2009

|

tom 03

|

nr 1

12

19

Najczęstsze problemy w rozrodzie kóz

58%

Krasucki J.

Lecznica Dużych Zwierząt. Ogólnopolski Kwartalnik dla Lekarzy Weterynarii

|

2010

|

tom 05

|

nr 4

20

Sezonowe zmiany w aktywności steroidogennej oraz mikrostrukturze jąder bażanta

58%

Gorska M. , Wojciechowska J. , Wojtysiak D.

Roczniki Naukowe Zootechniki

|

2015

|

tom 42

|

nr 2