Wyniki wyszukiwania

1

Pork meat quality in line 990 and 890 pigs compared with Danish crossbred pigs [(L x Y) x Du]

100%

Lyczynski A., Pospiech E., Runowska G., Rzosinska E., Mikolajczak B., Grzes B., Iwanska E., Kocwin-Podsiadla M.

Annals of Animal Science

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2006

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tom 06

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nr 2

2

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

100%

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.

3

Influence of crossbreeding on some characteristics of longissimus dorsi muscle and backfat of fatteners

86%

Gajewczyk P.

Annals of Animal Science. Supplement

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2005

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nr 1

4

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

86%

Kareta W., Korman K., Cegla M.

Reproductive Biology

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2006

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tom 06

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nr Suppl.2

5

Evaluation of growth and slaughter traits depending on meat quality of purebred and crossbred pigs with different backfat thickness

86%

Michalska G., Nowachowicz J., Wasilewski D., Bucek T.

Annals of Animal Science. Supplement

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2005

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nr 2

6

Evaluation of meat and milk from sheep of different breeds and their crosses, kept under ecological conditions

86%

Kawecka A., Paraponiak P.

Annals of Animal Science

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2006

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tom 06

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nr 2

7

An association between the MyoD gene polymorphisms and carcass traits in two- and three-breed crossbred pigs

86%

Urbanski P., Kapelanski W., Wyszynska-Koko J., Bocian M., Pierzchala M., Kuryl J.

Animal Science Papers and Reports

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2006

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tom 24

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nr 4

8

Evaluation of meat quality of crossbred male kids reared to 20 kg body weight

86%

Stanisz M., Pietrzak M., Gut A., Slosarz P.

Annals of Animal Science. Supplement

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2005

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nr 2

9

Analysis of fattening results of Polish Holstein-Friesian bulls and PHF x Belgian Blue crossbreds bulls

86%

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

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

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2014

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tom 53

The aim of study was the comparison of fattening results of Polish Holstein- Friesian (PHF) and PHF × Belgian Blue crossbreds (PHF × BB) bulls fattened in intensive system up to age of 18 months. Fattening results of 50 bulls in each genotype group were analyzed. Bulls were kept in freestall system at seven private farms located in Central Poland and up to about 60 days of life fed with milk replacement, hay and concentrates and since that maize-silage, hay-silage and concentrates were introduced to their diet. Animals were weighted on digital scale every 3 months. After slaughter the dressing percentage and the carcasses evaluation by EUROP method were collected from processing plant. Standardized averages of bulls body weight at 120th, 210th and 540th day of life were calculated as well as the average daily body gains in particular fattening periods. Results reviled that crossbreds PHF × BB were heavier by 94.2 kg (11.61%) then purebreds PHF at age of 18 months. The average daily body gains were high and accounted 1081 g for PHF and 1183 g for PHF × BB bulls, respectively. Daily body gains of crossbreds were higher by 10.94%. Observed dressing percentage was high for the both genotype groups but by 3.4 percentage points higher for crossbreds which also obtained the better notes in EUROP carcasses evaluation.

10

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

86%

Przysucha T., Golebiewski M., Slosarz J., Kuczynska B., Puppel K., Kunowska-Slosarz M., Kalinska A.

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

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2019

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tom 58[1]

11

Comparison of the carcass slaughter value of hybrid meat pigs and meat-fat type fatteners

72%

Strzelecki J., Grzeskowiak E., Borys A., Borzuta K.

Annals of Animal Science. Supplement

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2005

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nr 2

12

Effect of levels of feed intake on plasma concentration and urinary excretion of purine derivatives in crossbred bulls

72%

George S. K., Dipu M. T., Mehra U. R., Verma A. K., Singh P.

Journal of Animal and Feed Sciences

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2007

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tom 16

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nr 1

26-36

13

Meat content of young crossbred boars with Pietrain and Belgian Landrace breeding

72%

Michalska G., Nowachowicz J., Chojnacki Z.

Annals of Animal Science. Supplement

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2005

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nr 2

14

Heterosis effect on the selection index of crossbred boars obtained from reciprocal crossing of Pietrain with Duroc and Hampshire pigs

72%

Michalska G., Nowachowicz J., Rak B., Hammermeister A.

Prace Wydziału Nauk Przyrodniczych. Seria B. Prace Komisji Nauk Rolniczych i Biologicznych

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1998

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tom 32[44]

15

Performance test results of young crossbred boars with Zlotnicka Spotted and Pietrain breeding

72%

Michalska G., Chojnacki Z.

Annals of Animal Science. Supplement

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2005

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nr 1

16

Level of macroelements in blood serum and breeding performance of LWP x PL sows on industrial farms

72%

Gajewczyk P., Akincza J.

Annals of Animal Science

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2007

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tom 07

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nr 1

17

Selection for reproduction traits in Hungarian pig breeding in a two-way cross

72%

Nagyne-Kiszlinger H., Farkas J., Kover G., Nagy I.

Animal Science Papers and Reports

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2013

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tom 31

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nr 4

The authors analysed reproduction traits in the Hungarian Large White (HLW) and Hungarian Landrace (HL) breeds and their reciprocal crosses (F1) based on the data collected within a field test between 2001 and 2010. The traits were number of piglets born alive (NBA), gestation length (GL),farrowing interval (FI) and age at first insemination (AFI). Genetic parameters were estimated separately for purebreds and crossbreds by the REML method applying two-trait repeatability models for NBA, GL, FI, and two-trait single measurement model for AFI. Records of purebred and crossbred pigs were considered separate traits. The numbers of sows for NBA and GL were 56743-167865, for FI 38541-112059, and for AFI 16083-46143. Total number of animals in the pedigree amounted to 126340. AFI was of moderate heritability with large difference between purebreds and crossbreds: 0.28 for HLW, 0.26 for HL vs. 0.40 for the HLW/HLWxHL, and 0.41 for the HL/HLWxHL crosses. Heritability estimates for GL, both in purebreds and crossbreds were moderate:0.30 for HLW, 0.22 for HL, 0.25 for the HLW/HLWxHL cross, and 0.25 for the HL/HLWxHL cross.Heritability coefficients of NBA were low at 0.09, 0.06, 0.07, 0.06, and of FI at 0.06 for all HWL, HL,and their crosses, respectively. Magnitudes of the permanent environment effects ranged between 0.04-0.07 for GL and NBA and were null for FI. Genetic correlation estimates between purebred and crossbred performances were 0.28 and 0.39 for AFI, 0.96 and 0.82 for GL, 0.82 and 0.93 for NBA,as well as 0.65 and 0.33 for FI. Selection of purebred pigs for AFI and FI crossbred performances can be based on the crossbred breeding value whereas selection for NBA and GL can use either breeding value.

18

Nutritional value of and element content in meat from various pig breeds

72%

Valaitiene V., Stanyte G., Klementaviciute J., Jankauskas A.

Animal Science Papers and Reports

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2017

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tom 35

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nr 4

The present study focuses on two aspects of meat quality: the concentration of trace elements and nutritional value. In 2016, total pigmeat slaugtherings in the EU increased by 0.2% despite a significant reduction in the EU sow herd (-228 000 heads) over the last two years. Nevertheless, pigmeat is one of the most consumed meats worldwide, its consumption in the EU countries in 2016 was 32.25 kg/per capita annualy. As one of the most important factors affecting meat quality prior to slaughter is breed, therefore, it is important to evaluate the content of trace elements significant for human health, and meat nutritional value, of various pig breeds. The aim of this study was to describe the nutritional value (dry matter, proteins, intramuscular fat and total minerals) and contents of elements (sodium, magnesium, calcium, zinc, selenium, iron, copper, nickel and barium) in the longissimus dorsi muscle (MLD), obtained from pigs of eight pure breeds and from crossbred pigs, reared under the same conditions. The correlation between tissue composition and element contents was estimated. Element concentrations were assayed by inductively coupled plasma mass spectrometry (ICP-MS) after microwave digestion. Composition of MLD collected from pigs of various breeds did not considerably differ except for the amount of fat. Meat of pigs of different breeds and their crosses differed in terms of element contents. The highest amounts of Na (P<0.05), Mg (P<0.001) and Ba were recorded in meat of Yorkshire and White Large crossbreeds; those of Ca (P<0.001), Fe (P<0.05) and Ni (P<0.05) were highest in Landrace and White Large crosses; while levels of Zn and Se (P<0.05) were highest in Pietrain pigs, and that of Cu (P<0.01) – in Yorkshire and Pietrain crosses. The correlation of element contents with meat quality indexes in the MLD of the purebred pigs and crosses of these breeds was low or moderate. However, pork nutritional value and element contents were affected by pig breed.

19

Studies on keratoconjunctivitis sicca incidence in crossbred dogs

72%

Balicki I., Radziejewski K., Silmanowicz P.

Polish Journal of Veterinary Sciences

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2008

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tom 11

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nr 4

353-358

The present study was aimed at determination of keratoconjunctivitis sicca occurrence in crossbred dogs. The investigations covered 36 mongrel dogs with keratoconjunctivitis sicca recognized by the ophthalmic examination. Patients' age and sex was established. The ophthalmic evaluation protocol included: the conjunctiva examination (humidity, redness, discharge), the corneal examination (transparency, vessel ingrowth, pigmentation, defects), Schirmer tear test. The highest incidence among the crossbred dogs was reported between 6 and 9 year of age, males accounted for 64% of cases. In a clinical study involving 61 corneas, 10 appeared to be completely opaque. The pigmentation occured in 75% of corneas. The corneal defects were found in 50% of cases. A 10-15 mm/min Schirmer test was established in 29% while 0-5 mm/min in 28% of cases.

20

Relationships between performance test results of young crossbred boars with Zlotnicka Spotted and Pietrain breeding

72%

Michalska G., Nowachowicz J., Bucek T., Wasilewski P. D.

Annals of Animal Science. Supplement

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2005

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nr 1

Ograniczanie wyników

Pork meat quality in line 990 and 890 pigs compared with Danish crossbred pigs [(L x Y) x Du]

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

Influence of crossbreeding on some characteristics of longissimus dorsi muscle and backfat of fatteners

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

Evaluation of growth and slaughter traits depending on meat quality of purebred and crossbred pigs with different backfat thickness

Evaluation of meat and milk from sheep of different breeds and their crosses, kept under ecological conditions

An association between the MyoD gene polymorphisms and carcass traits in two- and three-breed crossbred pigs

Evaluation of meat quality of crossbred male kids reared to 20 kg body weight

Analysis of fattening results of Polish Holstein-Friesian bulls and PHF x Belgian Blue crossbreds bulls

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

Comparison of the carcass slaughter value of hybrid meat pigs and meat-fat type fatteners

Effect of levels of feed intake on plasma concentration and urinary excretion of purine derivatives in crossbred bulls

Meat content of young crossbred boars with Pietrain and Belgian Landrace breeding

Heterosis effect on the selection index of crossbred boars obtained from reciprocal crossing of Pietrain with Duroc and Hampshire pigs

Performance test results of young crossbred boars with Zlotnicka Spotted and Pietrain breeding

Level of macroelements in blood serum and breeding performance of LWP x PL sows on industrial farms

Selection for reproduction traits in Hungarian pig breeding in a two-way cross

Nutritional value of and element content in meat from various pig breeds

Studies on keratoconjunctivitis sicca incidence in crossbred dogs

Relationships between performance test results of young crossbred boars with Zlotnicka Spotted and Pietrain breeding