Wyniki wyszukiwania - Biblioteka Nauki

1

Ovulation level and prolificacy in ewes depending on their age, birth type and percentage of prolific genotype

100%

Kareta W. , Korman K. , Cegla M.

Reproductive Biology

|

2006

|

tom 06

|

nr Suppl.2

2

Assessment of hatching rate of emu [Dromaius novaehollandiae] eggs in the first year of egg laying

100%

Majewska D. , Szczerbinska D. , Tarasewicz Z. , Danczak A. , Romaniszyn K.

Acta Scientiarum Polonorum. Zootechnica

|

2003

|

tom 02

|

nr 2

57-63

3

Characteristics of mineral status in blood serum of horses at different age

100%

Suska M. , Janiak M.

Journal of Elementology

|

2005

|

tom 10

|

nr 4 Suppl.1

103

4

Ultrastructure of the basilar artery in rabbit

100%

Wojtowicz Z. , Chibowski D. , Siezieniewska Z.

Folia Morphologica

|

1991

|

tom 50

|

nr 3-4

5

Effect of birth body weight of piglets on their rearing up to the age of 10 weeks

100%

Krolewska B. , Rekiel A. , Wiecek J.

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

|

2014

|

tom 53

EN

The aim of the paper was to evaluate the effect of the birth body weight of the piglets on their productivity and survivability up to the age of 10 weeks. The observations covered the piglets born by 11 sows F1 of Polish Large White × Polish Landrace, inseminated by the semen of the boras (Duroc × Pietrain). The piglets were weighed on 1st, 21st, 35th and 70th day of life and the feed intake (per litter) was controlled. Depending on their birth body weight, the piglets were classifi ed into two groups: light (L) <1.5 kg (n = 52), heavy (H) ≥1.5 kg (n = 60). The mean general body weight of the piglets on 1st, 21st, 35th and 70th day was equal to 1.45, 5.09, 7.70 and 14.18 kg, respectively. In the groups, it was as follows: L – 1.17, 4.58, 6.91 and 13.00 kg; H – 1.70, 5.51, 8.29 and 15.12 kg, respectively (L–H, P ≤ 0.001). The deaths of the piglets in groups L and H amounted to 15.4 and 6.7%, respectively. In the situation of a free access of the progeny to mother’s feed and solid feedstuff, the obtained results indicate that the worse productivity, as expressed by lower feed conversion (by 10.5–16%), slower growth rate (by 12–20%) and lowered survivability (by 8.7 percentage points) of the piglets from groups L vs. group H, were the effect of considerably lower body weight of the newborn piglets as compared to their mean body weight

PL

Wpływ masy ciała prosiąt przy urodzeniu na ich odchów do wieku 10 tygodni. Celem pracy była ocena wpływu masy ciała prosiąt przy urodzeniu na ich produkcyjność i przeżywalność do wieku 10 tygodni. Obserwacjami objęto prosięta urodzone przez 11 loch F1 rasy wielka biała polska × polska biała zwisłoucha inseminowanych nasieniem knurów (duroc × pietrain). Prosięta ważono w 1., 21., 35. i 70. dniu, kontrolowano pobranie paszy (na miot). Prosięta w zależności od masy ciała przy urodzeniu podzielono na grupy: lekkie (L) <1,5 kg (n = 52), ciężkie (H) ≥1,5 kg (n = 60). Średnia masa ciała wszystkich prosiąt w 1., 21., 35., i 70. dniu wyniosła: 1,45; 5,09; 7,70; 14,18 kg, a w grupach odpowiednio: L – 1,17; 4,58; 6,91; 13,00 kg oraz H – 1–70; 5–51; 8–29; 15–12 kg (L–H, P ≤ 0,001). Upadki prosiąt grup L i H wyniosły 15–4 i 6–7%. Przy swobodnym dostępie potomstwa do pokarmu matki i paszy stałej uzyskane wyniki wskazują, że gorsza produkcyjność wyrażona słabszym o 10,5–16% wykorzystaniem paszy, wolniejszym o 12–20% tempem wzrostu oraz obniżoną o 8,7 punktu procentowego przeżywalnością prosiąt z grupy L względem grupy H, były efektem znacząco mniejszej w stosunku do średniej masy ciała nowonarodzonych prosiąt.

6

Analysis of results of conformation evaluation of the standard chinchilla achieved on the breeding farm

100%

Swiecicka N. , Zawislak J. , Kubacki S. , Gulda D. , Drewka M. , Monkiewicz M.

Polish Journal of Natural Sciences

|

2012

|

tom 27

|

nr 1

EN

The aim of the work was to assess the phenotypic value of conformation of standard chinchillas depending on their age groups. The research embraced a population of chinchillas (1986 individuals including: 1231 females and 755 males) from the breeding farm in the kujawsko-pomorskie voivodship within the years 2003-2010. Analyzed features included: animal size, color type, color purity, fur quality, belly-belt and total score achieved for the features mentioned above. Animals were divided into three age groups: I - up to 6 months, II - between 7 and 10 months, III - over 11 months. As a result of the research it has been shown that the most stabilized features on the assessed farm were: animal size (71% of the population presented max. evaluation 4 pt.) and belly-belt (80% of the population presented max. evaluation 3 pt.). It has been pointed out that the older the animal was the higher score it obtained during the license evaluation. Other features obtained lower scores than the possible maximum, which proves that the special attention should be paid while conducting further breeding work on the considered farms.

PL

Celem pracy było oszacowanie wartości fenotypowej cech pokroju szynszyli odmiany standard w zależności od grupy wiekowej. Badaniami objęto populację szynszyli (1986 osobników w tym: 1231 samic i 755 samców) z fermy zarodowej w województwie kujawsko-pomorskim w latach 2003-2010. Analizowano takie cechy jak: wielkość i typ zwierzęcia, typ barwny, czystość barwy, jakość okrywy włosowej, pas brzuszny oraz sumę punktów uzyskanych za wymienione cechy. Zwierzęta podzielono na trzy grupy wiekowe: I - do 6 miesięcy, II - od 7 do 10 miesięcy i III - powyżej 11 miesięcy. Stwierdzono, że najbardziej ustabilizowane cechy na ocenianej fermie to: wielkość i budowa zwierzęcia (max. ocenę 4 pkt. otrzymało 71% populacji) oraz pas brzuszny (max. ocenę 3 pkt., otrzymało 80% populacji). Wykazano, że im starsze były oceniane zwierzęta, tym wyższą otrzymywały punktację podczas oceny licencyjnej. Pozostałe cechy uzyskały punktację niższą od możliwego maksimum. Należy na nie zwrócić szczególną uwagę, prowadząc dalszą pracę hodowlaną na badanej fermie.

7

Effect of the age at first calving on milk performance in Simmental cows

100%

Cioch B. , Czerniawska-Piatkowska E. , Rzewucka-Wojcik E.

Folia Pomeranae Universitatis Technologiae Stetinensis. Agricultura, Alimentaria, Piscaria et Zootechnica

|

2015

|

tom 36

8

Level of accumulation of selected heavy metals in horse tissue as a function of age

100%

Rudy M. , Znamirowska A. , Zin M.

Medycyna Weterynaryjna

|

2007

|

tom 63

|

nr 11

1303-1306

EN

The level of accumulation of selected heavy metals (Pb, Cd, Hg, As) in horse tissues belonging to four age groups, each containing 20 horses, was studied in order to determine the relationship between age and level of meat contamination. The content of the above mentioned elements was analyzed in horses killed between 2002 and 2005 to determine any year-to-year increase. In order to determine the chemical composition of the meat a sample was taken from the longissimus dorsi muscle at the height of the last thoracal vertebrae. The study showed that meat contamination rose with the age of horses and additionally depended on the year of killing.

9

Levels of macroelements in selected tissues and in the hair coat of the European bison, depending on the age of animals

100%

Debska M. , Dymnicka M. , Olech W. , Arkuszewska E.

Polish Journal of Natural Sciences. Supplement

|

2006

|

tom 03

601-606

10

Effect of honey flow on acceptance of bee eggs at different age in rearing colonies

100%

Gabka J. , Zajdel B. , Skorupka M. , Ostaszewska T. , Kamaszewski M.

Medycyna Weterynaryjna

|

2014

|

tom 70

|

nr 12

EN

In many areas in Central Europe, rape culture is one of the main nectar flows for bees. The natural spring development of honey bee colonies is too late for the full utilization of nectar plants in May. It is recommended to use spring managements, which increase the amount of brood, reared in March and April, to obtain as many foragers as possible for spring flows. According to many beekeepers, uncapping of combs with winter food is a very good method of accelerating the development of bee colonies in spring. The purpose of this study was to investigate whether the uncapping of winter food affects the amount of brood reared. The research was conducted in April 2007 and 2009 in south-eastern Poland. In total, 54 honey bee colonies were investigated. Winter food was uncapped in half of the colonies, and in the other half no management was used. The comparison of development in both groups was based the measurements of brood areas. It was found that the uncapping of combs with winter food in early spring had no significant effect on the amount of brood reared in honey bee colonies.

11

Effect of birth weight of piglets on growth rate and rearing performance up to 8 weeks of age

100%

Ambroziak E. , Rekiel A.

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

|

2017

|

tom 56[1]

EN

Effect of birth weight of piglets on growth rate and rearing performance up to 8 weeks of age. The aim of the experiment was to determine the effect of the birth weight of piglets on their rearing results up to 56 days of age, as expressed by growth rate and survival. Observations were made on 277 crossbred piglets from 22 litters of F1 sows (Polish Landrace ´Polish Large White) derived from crossbred boars (Duroc ´Pietrain), which were kept and fed the same way. Piglets were reared with mothers for 5 weeks and observed for 8 weeks. At 1, 7, 21 and 56 day of age, piglets were individually weighed. The body weight on day 1 of age served as a basis for dividing the piglets into groups I, II, III and IV (≤1.2; 1.21-1.39; 1.40-1.59; and ≥1.60 kg body weight, respectively). Coefficients of correlation were estimated between body weight on day 1 of age and at 7, 21 and 56 days of age, and daily gains. The mean body weight of the piglets on days 7, 21 and 56 differed between groups I, II, III and IV (P ≤0.01) and depended on the birth weight (r=+0.773, r=+0.567, r=+0.504). In the subsequent rearing periods, daily gains in groups I-IV increased and the differences between the groups showed similar relationships. Differences between groups II and III were small (P>0.05), and those between groups I and IV considerable and highly significant. With the increasing mean body weight at birth, piglet survival increased and was higher in group IV vs I by 13.64 percentage points. The birth weight ≥ 1.60 kg ensured the best growth rate and survival of the piglets.

PL

Wpływ masy ciała prosiąt przy urodzeniu na tempo wzrostu i wyniki odchowu do wieku 8 tygodni. Celem badań było określenie wpływu masy ciała prosiąt przy urodzeniu na wyniki ich odchowu do 56 dnia życia, wyrażone tempem wzrostu i przeżywalnością. Obserwacjami objęto 277 prosiąt mieszańców z 22 miotów od loch F1 (Polska Biała Zwisłoucha x Wielka Biała Polska) po knurach krzyżówkowych (Duroc x Pietrain), jednakowo żywionych i utrzymywanych. Odchów potomstwa przy matkach trwał 5 tygodni a obserwacje 8 tygodni. W 1., 7., 21., oraz 56. dniu życia prosięta ważono indywidualnie. Masa ciała w 1. dniu życia była podstawą do podziału prosiąt na grupy: I, II, III, IV, odpowiednio: ≤1.2; 1.21-1.39; 1.40-1.59; ≥1.60 kg m.c.). Oszacowano współczynniki korelacji między masą ciała prosiąt w 1. dniu życia a m.c. w 7., 21. i 56 dniu życia oraz przyrostami dobowymi. Średnia masa ciała prosiąt w 7., 21. i 56. dniu różniła się pomiędzy grupami I, II, III, IV (P ≤0.01) i zależała od masy urodzeniowej (r=+0.773, r=+0.567, r=+0.504). W kolejnych okresach odchowu przyrosty dobowe w grupach I-IV zwiększały się, przy czym ich zróżnicowanie pomiędzy grupami wykazywało zbliżone zależności. Między grupami II i III różnice były niewielkie (P>0.05), między grupami I i IV znaczne i wysoko istotne statystycznie. Przy zwiększającej się średniej m.c. przy urodzeniu przeżywalność prosiąt zwiększała się, była większa w grupie IV vs I o 13.64 pkt. proc. Masa ciała przy urodzeniu ≥ 1.60 kg gwarantowała najlepsze tempo wzrostu i przeżywalność prosiąt.

12

Changes in some blood parameters associated with the age of lambs

100%

Antunovic Z. , Sencic D. , Domacinovic M. , Speranda M. , Steiner Z.

Medycyna Weterynaryjna

|

2005

|

tom 61

|

nr 07

13

Effect of age and temperament type on reproductive parameters of female raccoon dogs (Nyctereutes procyonoides Gray)

84%

Lapinski S. , Bzymek J. , Niedbala P. , Migdal L. , Zon A. , Lis M.

Annals of Animal Science

|

2013

|

tom 13

|

nr 4

14

Age as a factor influencing diversity of commensal E. coli microflora in pigs

84%

Bok E. , Mazurek J. , Pusz P. , Stosik M. , Baldy-Chudzik K.

Polish Journal of Microbiology

|

2013

|

tom 62

|

nr 2

EN

Commensal, intestinal E.coli microflora plays a role in maintenance of intestinal balance of the host, is responsible for defending against pathogenic E.coli. This study encompasses the analysis of BOX-PCR fingerprinting patterns, phylogenetic grouping and virulence genes prevalence among commensal E.coli isolates derived from healthy pigs. Altogether, 274 unique E.coli isolates were identified, 110 from weaned piglets (Piglets I and Piglets II) and 164 from adult sows (Sows I and Sows II). BOX-PCR analysis distinguished isolates from pigs in different age and indicated that during maturation the changes in E.coli microflora occurred. Phylogenetic grouping revealed significant differences between distribution of four phylogenetic groups among isolates derived from piglets and sows. In phylogenetic structure of isolates from the piglets group B1 prevailed significantly, while among isolates derived from the sows the majority of them were classified into phylogenetic group A. The identification of 17 virulence factors in E.coli isolates derived from healthy pigs was performed. Three of 13 intestinal (escV, ehxA, estII) and four extra-intestinal virulence genes (VGs) (hlyA, fimH, papA, sfaS) were detected in the porcine isolates. The percentage of VGs positive isolates among piglets is higher than among sows, moreover, the VGs occurring in E.coli isolates from piglets revealed greater diversity than that detected among isolates from sows.

15

The influence of the breed and age on the libido of insemination boars

84%

Szostak B. , Sarzynska J.

Acta Scientiarum Polonorum. Zootechnica

|

2011

|

tom 10

|

nr 3

EN

The libido of a boar is a very important factor which determines the male’s suitability for insemination. Before a breeder is included in the semen production cycle, its libido has to be estimated, which may significantly contribute to the improvement of the organization of work in breeding stations.Many factors influence a boar’s libido.Among others, it is the male’s age and breed. In this work the influence of the breed and age on the sexual behaviour of boars is estimated, as well as the phenotype correlations between a boar’s libido and the parameters of the semen are defined. It has been proved that among the analysed breeds and hybrids the highest libido characterized PIC hybrids, and hybrids such as: Pietrain x Duroc and Duroc x Pietrain, and among the pure breed boars – Duroc breed. It has also been proved that the sexual activity of boars decreases with age. Significant correlations between a boar’s libido and some features of the semen have been shown.

PL

Aktywność płciowa knurów jest bardzo ważną cechą decydującą o przydatności samca do inseminacji. Na behawior seksualny knura wpływa wiele czynników, między innymi wiek i rasa. W niniejszej pracy dokonano oceny wpływu rasy i wieku na zachowanie płciowe knurów oraz określono korelacje fenotypowe między libido knura a parametrami nasienia. Aktywność płciową knurów określano na podstawie pomiarów czasowych, przy pobieraniu nasienia knurów następujących ras: wielka biała polska (wbp) – 246 ejakulatów, polska biała zwisłoucha (pbz) – 753; pietrain (pie.) – 51; mieszańce duroc x pietrain – 122; mieszańce pietrain x duroc – 277; mieszańce hampshire x pietrain – 47; hybrydy PIC – 61; oraz 43 ejakulaty od knurów rasy duroc. Do określania libido knura w modelu statystycznym uwzględniono następujące cechy: czas od momentu wprowadzenia knura do pomieszczenia z fantomem do wykonania skoku, czas od momentu wprowadzenia knura do rozpoczęcia ejakulacji, całkowity czas od momentu wprowadzenia knura do chwili zejścia z fantomu. Stwierdzono, że najwyższym libido spośród badanych ras i mieszańców charakteryzowały się knury – hybrydy PIC oraz mieszańce: pietrain x duroc i duroc x pietrain, a z osobników czystorasowych knury rasy duroc. Stwierdzono również, że wraz z wiekiem spada aktywność płciowa samców. Wykazano istotne korelacje pomiędzy libido knura i niektórymi cechami nasienia.

16

Age-specific reproductive behaviours in male roe deer Capreolus capreolus

84%

Melis C. , Hoem S. A. , Linnell J. D. C. , Andersen R.

Acta Theriologica

|

2005

|

tom 50

|

nr 4

445-452

EN

The behaviour of active male roe deerCapreolus capreolus Linnaeus, 1758 was studied in a wild population on Storfosna island (Norway), during the pre-territorial and territorial seasons (February–August) of 1994. Observed behaviours were grouped in seven categories (mating, aggression, display, marking, vigilance, moving and maintenance), and the proportion of time spent in each behaviour by three age classes (yearlings, subadults and adults) was compared. Time spent in each behaviour varied significantly between months for all male age classes. From February to August, time spent in maintenance decreased, while time spent in vigilance increased. The time spent in mating increased both in adult and subadults but did not vary significantly for yearlings throughout the months. When comparing age classes within a month, there were no significant differences in time spent in each behaviour. Surprisingly, adult territorial males did not invest significantly more time in mating, with respect to yearlings and subadults. This may be consistent with the oligogynous mating system of roe deer, in which the reproductive success is divided amongst several years and their territoriality, which could be a tactic to reduce the competition for mating.

17

Age related changes and reference intervals of haematological variables in dairy calves

84%

Jezek J. , Nemec M. , Staric J. , Klinkon M.

Bulletin of the Veterinary Institute in Puławy

|

2011

|

tom 55

|

nr 3

EN

The aim of the study was to investigate the physiological pattern of haematological variables and to acquire reference intervals for calves in different age periods. Sixty-five Holstein Friesian calves from two dairy farms were serially sampled from birth to the age of 24 weeks. Red blood cell count (RBC), haemoglobin concentration (Hb), mean corpuscular volume (MCV), haematocrit (PCV), mean corpuscular haemoglobin (MCH), mean corpuscular haemoglobin concentration (MCHC), number of platelets (PLT), and white blood cell count (WBC) were measured in blood samples. The health status of the calves was monitored. The age influenced significantly the values of all haematological variables (P<0.001). The effect of farm was significant for RBC (P=0.048) and MCHC (P<0.001), other variables did not differ significantly between farms. The temporal dynamics of RBC, Hb, and PCV values was harmonised. A progressive reduction in the values occurred over the first weeks of life; the lowest values were established at the age of 5 to 6 weeks. The reference intervals of haematological variables were calculated for three age groups of calves; 1-4 weeks, 5-8 weeks, and 12-24 weeks of age.

18

Effects of the age of grafted larvae and the effects of supplemental feeding on some morphological characteristics of Iranian queen honey bees (Apis mellifera meda Skorikov, 1929)

84%

Mahbobi A. , Farshineh-Adl M. , Woyke J. , Abbasi S.

Journal of Apicultural Science

|

2012

|

tom 56

|

nr 1

19

Influence of horse age, breed and type of horse management on the community structure of strongylids (Nematoda: Strongylida) in domestic horses

84%

Kharchenko V. A. , Kuzmina T. A. , Dzeverin I.

Annals of Parasitology

|

2016

|

tom 62

|

nr Suppl.

20

Fattening and slaughter value of crossbred pigs depending on their age

84%

Rudy M. , Znamirowska A.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica

|

2007

|

tom 25

|

nr 1