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Influence of magnesium added to diet of Pulawska breed fatteners on physical and chemical properties of meat

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Lechowski J., Kamyk-Kamienski P., Kasprzyk A., Zuba J.

Journal of Elementology

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2013

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tom 18

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nr 1

Magnesium is a macronutrient involved in numerous physiological and biochemical processes in an animal organism. This study aimed at evaluating the influence of Mg supplementation of feed for fatteners on physical, chemical and sensory properties of their meat. The experiment was conducted on 30 Pulawska breed fatteners divided into two groups: experimental and control. The former group was daily supplemented with 1 g MgCl2⋅6H2O for 30 days before slaughter. After slaughter (when fatteners had gained 105 kg ± 0.4 kg of body weight), samples of ham muscle (musculus adductor femoris) were taken for determinations of the meat quality. Magnesium supplementation had a positive effect on pH1 and pH24 of meat. Decreased free water percentage, re-emission and green colour share, accompanied by an increase in the red colour proportion in ham meat, occurred owing to magnesium (these differences were important statistically). Another finding was a higher level of hematin in meat from the experimental animal group. As for the general chemical composition of meat from the experimental group, dry matter and glycogen content increased. No effect of magnesium supplementation was observed in the sensory quality assessment of meat. Magnesium added to feed caused slower decomposition of muscular glycogen, thus preventing a substantial decrease in the meat pH after slaughter. The meat of fatteners from the experimental group was characterized by superior technological indices.

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Slaughter value and meat quality of Pulawska and Polish Landrace breeds fatteners

100%

Kasprzyk A., Babicz M., Kamyk-Kamienski P., Lechowski J.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica

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2013

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tom 31

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nr 3

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Płodność i behawior płciowy loszek mieszańców rasy puławskiej i wielkiej białej polskiej żywionych mieszankami z udziałem owsa nagoziarnistego

88%

Stasiak A., Kamyk-Kamienski P., Babicz M., Kasprzyk A., Lechowski J.

Przegląd Hodowlany

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2013

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tom 81

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nr 3

The paper contains the evaluation of the influence of feeding the Pulawska x Polish Large White swine hybrids using mixture feeds containing naked oats on reproduction performance indicators. The study involved 60 gilts divided into 3 groups: group I received a full-rate mixture with 40% participation of naked oats, group II with 20% naked oats, and group III - control, fed with a full-rate mixture without naked oats. Three consecutive spontaneous oestruses were observed at experimental gilts, the sexual activity of which was assessed during each oestrus. Gilts were mated during their third oestrus. The assessment of reproductive performance included: age at the first farrowing, number of live-born and reared piglets, as well as the litter weight at 21st day. The study showed that gilts fed with mixtures containing naked oats reached their sexual maturity sooner as compared to those from the control group. Feeding the sows with the mixtures containing naked oats had a positive impact on reproduction indicators.

Ograniczanie wyników

1 Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica

1 Journal of Elementology

1 Przegląd Hodowlany

3 Kamyk-Kamienski P.

3 Kasprzyk A.

3 Lechowski J.

2 Babicz M.

1 Stasiak A.

1 Zuba J.

3 2013

Influence of magnesium added to diet of Pulawska breed fatteners on physical and chemical properties of meat

Slaughter value and meat quality of Pulawska and Polish Landrace breeds fatteners

Płodność i behawior płciowy loszek mieszańców rasy puławskiej i wielkiej białej polskiej żywionych mieszankami z udziałem owsa nagoziarnistego