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Potential accuracy of genetic evaluation for calving difficulty with incomplete data on calving difficulty and-or birth weight using a bivariate threshold-linear animal model

100%

Ramirez-Valverde R., Misztal I., Bertrand K.

Journal of Applied Genetics

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2001

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tom 42

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nr 3

2

Adaptation verschiedener Rinderrassen an die Bedingungen einer ganzjahrigen Freilandhaltung

100%

Matthes H. D., Jentsch W., Derno M., Mohring H., Wegner J., Pilz K., Bittner G.

Zeszyty Naukowe Akademii Rolniczej we Wrocławiu. Konferencje

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1996

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tom 12

3

Ecology of beef production

100%

Velde K. V.

Zeszyty Naukowe Akademii Rolniczej we Wrocławiu. Konferencje

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1996

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tom 12

4

Molecular genetics in beef cattle breeding - a review

100%

Switonski M.

Animal Science Papers and Reports. Supplement

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2002

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tom 20

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nr 1

5

Rearing beef cattle in lowland regions on joint pastures with sheep

100%

Zizlavsky J., Horak F., Zizlavska S.

Zeszyty Naukowe Akademii Rolniczej we Wrocławiu. Konferencje

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1996

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tom 12

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Versuchsplan zur Schatzung genetischer Effekte zwischen Rassen bei Mast- und Schlachteistungsmerkmalen

100%

Klautschek G., Dietl G.

Zeszyty Naukowe Akademii Rolniczej we Wrocławiu. Konferencje

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1996

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tom 12

7

Comparison of recording results of purebred and crossbred Limousine cattle in Poland

88%

Przysucha T., Golebiewski M., Wnek K., Slosarz J., Kunowska-Slosarz M., Balcerak M.

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

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2018

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tom 57[1]

Comparison ofrecording results of purebred and crossbred Limousine cattle in Poland.The aim of the study was to compare purebred and crossbred Limousine cattle in respect to theircompliance with the breeding goals and standards adopted by the Polish Association of Breeders and Producers of Beef Cattle. The study wasbased on datafor the years 2002-2015 from the PABPBC and for the years 1996-2001 from the National Center of Animal Breeding (NCAB). The properties that were evaluated were the average weight of cows (kg), average body weight of calves after birth (kg), average daily weight gain of calves from birth to 210 days (g), average body weight of calves at 210 days (kg) and average milk yield of cows (kg).The averagebody weight of cows did not differ from the breeding goal for either purebred or crossbred Limousine cows. Purebred cows were always heavier than crossbred cows, but the weight difference was almost 100 kg in 1999 and in 2006, only 20 kg. Body weight after birth for purebred and crossbred bull calves was comparable. Purebred Limousine calves consistently had higher daily weight gain than crossbred calves. The average milk yield of purebred and crossbred Limousine cows was about 2000 kg, and did not change significantly in any year.

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Effect of sire referencing scheme on reliability of the breeding value estimation in beef cattle

88%

Vesela Z., Pribyl J., Vostry L., Stolc L.

Animal Science Papers and Reports. Supplement

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2004

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tom 22

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nr 2

9

Generating data in models including direct and maternal dominance effects

88%

Duangjinda M., Misztal I., Bertrand J. K.

Journal of Applied Genetics

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2001

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tom 42

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nr 2

10

Eosinophilic myositis due to sarcocystosis in a herd of beef cattle

75%

Wouda W., Vos J. H., Snoep J. J., Sumter R. D.

Wiadomości Parazytologiczne. Suplement

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2005

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tom 51

11

Cost analysis of feed production and feeding of beef cattle on the example of a selected private farm

75%

Piszcz H., Piotrowski S., Milczarek A.

Acta Scientiarum Polonorum. Zootechnica

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2022

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tom 21

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nr 1

12

Prevalence of bovine herpes virus type 1 in small herds of young beef cattle in South-Eastern Poland – a preliminary study

75%

Wernicki A., Urban-Chmiel R., Rola J., Socha W., Stegierska D., Dec M., Puchalski A.

Bulletin of the Veterinary Institute in Puławy

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2015

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tom 59

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nr 4

The study was performed on nasal swabs, tracheal samples, and sera obtained from young beef heifers aged between 6 and 12 months, from farms in eastern and south-eastern Poland. The samples were evaluated using bovine herpesvirus 1 (BHV-1) ELISA kits (ELISA BHV1 antibody and ELISA BHV1 antigen) and PCR. Among all the animals examined, 37 (32.2%) were positive in the ELISA BHV1 antigen test. The presence of BHV-1 was confirmed by PCR in 42 (36.5%) animals. In the ELISA BHV1 antibody test, 39 (33.9%) seropositive animals were identified. The presence of BHV-1 positive samples was observed in all the examined breeds of young cattle. There were no significant differences (P ≤ 0.05) in BHV-1 positive samples. The results indicate that the incidence of BHV-1 infections in feedlot cattle herds studied was 32.2%-36.5%, which suggests that preventive measures should be implemented in order to limit transmission of the virus.

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Obstetrical problems and stillbirth in beef cattle

75%

Citek J., Hradecka E., Rehout V., Hanusova L.

Animal Science Papers and Reports

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2011

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tom 29

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nr 2

Out of 5970 calvings, 4.29% had an abnormal course (dystocia). The occurrence of stillbirths was 6.98% of all births and 4.15% of normal course births. Stillbirths occurred in 70.31% of dystocias. The highest frequency of stillbirths was in Blonde d´Aquitaine (8.59%) and the lowest in Gasconne (3.96%) cows. A narrow pelvis and an oversized foetus were the causes of more than 50% cases of dystocia. In Charolaise, an extremely high occurrence of oversized foetus, while in Blonde d´Aquitaine uterine inertia were found. A narrow pelvis was especially frequent as the cause of dystocia in the Aberdeen Angus and Limousine breeds. On analysis of stillbirths the most important effect was of the calving course with 24.47% impact on variability. Difficult calving increased the odds of stillbirth by 76 compared to normal calving. The heritability of stillbirth was estimated as 7.80%. It is recommended to restrict the use of sires with a higher incidence of dystocia or stillbirth in the offspring. As genetically determined variability is very low, other systematic measures are necessary to control stillbirth and dystocia. These are: supervision of the herd, obstetrical assistance, appropriate heifer rearing, mating cows at the proper live weight and proper nutrition during the pregnancy.

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Embryo development and survival in beef cattle administered ergotamine tartrate to simulate fescue toxicosis

75%

Schuenemann G. M., Hockett M. E., Edwards J. L., Rohrbach N. R., Breuel K. F., Schrick F. N.

Reproductive Biology

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2005

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tom 05

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nr 2

15

Analysis of Limousine beef cattle recording results in Poland

75%

Przysucha T., Golebiewski M., Grodzki H., Wnek K., Slosarz J., Kunowska-Slosarz M., Tokarski P.

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

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2015

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tom 54[1]

Analysis of results assessment of growth of Charolais beef cattle in Poland. The aim of the study was to assess the utility of selected results of the French Charolais breed with respect to their compliance with the goal of racial breeding and standards adopted by the Polish Association of Breeders and Producers of Beef Cattle (PABPBC). The subject of the analysis were recording results of the French Charolais beef cattle breed in Poland. The study was based on data for the years 2002-2013 of PABPBC and the National Center of Animal Breeding (NCAB) for 1996-2001. The data set included: n - the number of animals tested, min. - Minimum values in the studied traits, max. - the maximum value of the selected features, average - average values of the analyzed traits, SD - standard deviation. Evaluated properties are: average weight of cows (kg), the average body weight of calves after birth (kg), the average daily gains for age 210 days (g), the average body weight of calves at the age of 210 days (kg), the average milk yield (kg), the terms of cows and heifers calving aptitude, the distribution of the population according to the order of calving cows. One can observe a gradual decline in the share of Charolais breed in national beef cattle population, also shows a significant decrease in the number of crossbreds with Charolais breed. The average weight of cows in 2005-2006 amounting to 559.4 and 570.2 kg meet the standards for breeding of cows entered in the initial part of the herd book, which define the minimum weight of Charolais cows after first calving as 550 kg. The average weight at birth of heifer calves in each year assessment was similar, but after 2008 began more than 40 kg. In purebred bull calves was seen a systematic increase in the average birth weight. The difference in birth weights between heifers and bulls ranged from 1 kg in 1999 to 3.6 kg in 2012. High average daily weight gains of bulls to 210 days of age, at short extra supplementary fattening period of about one month allow to export the animals weighing about 300 kg at an good price. The average daily gains of heifers (550-560 g), guarantee obtaining at 15 months of age body weight allowing the commencement of breeding. From 30.4 to 47.8% Charolais cows in recent years delivered in the relevant period.

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Influence of selected factors on maternal nursing performance of Aberdeen Angus calves

75%

Pilarczyk R., Wojcik J., Binerowska B., Kryskow P., Czerniak P.

Acta Scientiarum Polonorum. Zootechnica

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2011

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tom 10

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nr 1

We observed 75 Aberdeen Angus calves born in the years 2004–2007 and managed on pastures and wild areas of Karsibór, an island located in the northern part of the Szczecin Lagoon. An analysis was carried out on the results of maternal nursing of the calves in relation to subsequent calving, sex of the calf, and year of rearing.Asignificant (P≤0.01, P≤0.05) effect of subsequent calving on body weight of the calves being born was observed. The calves from the first calvings had significantly lower body weight at birth as compared to those born from the subsequent calving. On the other hand, there were no significant effects of the subsequent calving on body weight and daily weight gain of calves after weaning, even though the calves from the first calving were characterized by poorer performance in this respect. Significant differences between the data on calf nursing performance recorded in each individual year of the study result from the fact that the animals grazed on poorer quality pastures and unused land.

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Effect of herbal mixture in beef cattle diets on fattening performance and nutrient digestibility

75%

Klebaniuk R., Bakowski M., Kowalczuk-Vasilev E., Olcha M., Widz J., Zajac M.

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

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2016

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tom 55[2]

Effect of herbal mixture in beef cattle diets on fattening performance and nutrient digestibility. The aim of the study was to evaluate the impact of herbal mixtureaddition in beef cattle diet on daily weight gain, feed utilization and the nutrient digestibility. The study was performed on 16 Limousin bulls during the fattening period from 100 kg to 650 kg of body weight. The animals were divided into two groups: a control (C) and experimental (E) group. All experimental bulls received the same daily rations composed of basal feeds and a concentrate mixture. The experimental factor was a certified mixture of dried chopped herbs (the author's own elaboration): Echinacea (Echinacea purpurea Moench.), garlic (Allium sativum L.), thyme (Thymus vulgaris), caraway (Carum carvi), and liquorice(Glycyrrhiza glabra), given additionally to the rations, in the amount of 3% of the predicted daily dry matter intake. During the study, the feed intake, animal weight gain, feed utilization per 1 kg of body weight gain, and nutrient digestibility were determined.The digestibility study was performed with the indicator method using acid-insoluble ash (AIA) as internal indicator. The addition of herbs improved animals’ performance. Higher daily gains in the experimental group of animals (1194 g/day/animal), compared to those fed without the addition of herbs (982 g/day/animal), were found with simultaneous better feed utilization for 1kg of growth (5.01 kg in the experimental group, 5.94 kg in the control group). Higher apparent protein and fat digestibility coefficients were noted in the animals from the experimental group (by 1.3 and 2.5 percentage points, respectively), compared to the control ones. In conclusion at least a 3% addition of herbal mixture containing Echinacea, garlic, thyme, caraway,and liquoricecan be recommended in beef cattle diet in order to improve thefattening performance. The addition of herbs improves animals’ performance. Higher daily gains in the experimental group of animals, with simultaneous better utilization of feed per1 kgof growth, were found.

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Analysis of Hereford beef cattle recording results in Poland

75%

Przysucha T., Golebiewski M., Grodzki H., Wnek K., Slosarz J., Kunowska-Slosarz M., Tokarski P.

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

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2015

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tom 54[2]

Analysis of Hereford beef cattle recording results in Poland. The aim of the study was to assess the utility of selected results of the British Hereford breed with respect to their compliance with the goal of racial breeding and standards adopted by the Polish Association of Breeders and Producers of Beef Cattle (PABPBC). The subject of the analysis were recording results of the British Hereford beef cattle breed in Poland. The study was based on data for the years 1996-2001 the National Center of Animal Breeding (NCAB) and the PABPBC for 2002-2013. The data set included: N - the number of animals tested, Min. - Minimum values in the studied traits, Max. - The maximum value of the selected features, Average - average values of the analyzed traits, SD - standard deviation. Evaluated properties are: average weight of cows (kg), the average body weight of calves after birth (kg), the average daily gains for age 210 days (g), the average body weight of calves at the age of 210 days (kg), the average milk yield (kg), the terms of cows and heifers calving aptitude, the distribution of the population according to the order of calving cows. Since 2001 there is a clear, steady decline in the share of population of the breed in the female population of beef cattle. This decrease concern both purebred and crossbred populations. Analysis of the results of evaluation shows that the average body weight of cows did not differ from weights assumed in the breeding goal. The mean body weight of purebred calves at birth did not change significantly in 15 years of assessment. Bulls have demonstrated higher birth weight reaching 35.4 kg. The difference between bulls and heifers was 3.4 kg. Calves were characterized by a high average gains during rearing: 876-1039 g for heifers and 851-1122 g for bulls over all years of assessment. In Polish Hereford cattle herds 30.9 to 46.9% of cows was calving during the relevant period in recent years. It shows that more than half of the calves born at other times of the year only to a small degree can take full advantage of the pasture. Despite a steady decrease in the population of Hereford cows and cows calving for the second time constituted about 40% of the population. In 2000, only 9 cows was after 7 calving and in 2013 only 78 (11.8%).

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FABP3 polymorphism in relation to growth traits in Simmental and Salers cows

75%

Kuzminska K., Kulig H., Szewczuk M., Zajaczkowska J., Jakobiak M., Padzik N.

Acta Scientiarum Polonorum. Zootechnica

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2018

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tom 17

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nr 4

20

Use of pedometers to analyse 24-hour activity and fertility of Limousin cows

75%

Wojcik P., Olszewski A.

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

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2015

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tom 36

Ograniczanie wyników

Potential accuracy of genetic evaluation for calving difficulty with incomplete data on calving difficulty and-or birth weight using a bivariate threshold-linear animal model