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A comparison of breeding performance of Polish Landrace sows in purebred and two-breed mating

100%

Buczynski J. T. , Panek A.. , Fajfer E.

Annals of Animal Science. Supplement

2001

nr 1

Association between polymorphism in ESR gene and litter size of Polish Landrace and Polish Large White sows - preliminary results

100%

Natoloczna-Kotara A. , Jasek S.

Annals of Animal Science. Supplement

2001

nr 1

Reproductive traits of Polish Landrace sows depending on fat content of milk

100%

Buczynski J. T. , Fajfer E. , Panek A.

Annals of Animal Science. Supplement

2001

nr 1

Analysis of conditionality of sensory quality longissimus lumborum muscle after heat treatment

80%

Przybylski W. , Jaworska D. , Czarniecka-Skubina E. , Poltorak A. , Niemyjski S.

Electronic Journal of Polish Agricultural Universities. Series Food Science and Technology

2007

tom 10

nr 4

Meat quality characteristics if hybrid fatteners obtained from three- and four-way crossings with contribution of Pietrain boars or crosses of Pietrain with Duroc and line 990

80%

Rybarczyk A. , Kortz J. , Pietruszka A. , Czarnecki R. , Karamucki T. , Jakubowska M. , Natalczyk-Szymkowska W.

Electronic Journal of Polish Agricultural Universities. Series Animal Husbandry

2002

tom 05

nr 1

Meat quality was examined in 120 fatteners in 5 experimental groups. The analysis included meat quality traits of hybrid pigs, which had been obtained from crossing Polish Large White × Polish Landrace sows with boars of the following breeds and crosses: Pietrain (P), L.990 × Pietrain (LP), Pietrain × L.990 (PL), Duroc × Pietrain (DP), Pietrain × Duroc (PD). The studies demonstrated that the fatteners sired by Pietrain boars (P) were characterised by the highest meatiness, though attained worse meat quality in relation to those from hybrid sires that had 25% of Pietrain blood. It was also demonstrated that the combining ability in reciprocal crossing had no significant influence on the difference in meat quality between the groups LP and PL, as well as DP and PD. In the whole studied material, the meat of barrows had higher intramuscular fat content and brighter colour compared to that of gilts.

Reproductive value of hybrid boars obtained from reciprocal crossing of Pietrain and Duroc breeds and their efficiency in production of fatteners on the basis of hybrid sows [Polish Large White x Polish Landrace]

80%

Czarnecki R. , Pietruszka A. , Kawecka M. , Owsianny J.

Advances in Agricultural Sciences

2000

tom 07

nr 1