Publications by authors named "Dariusz Lisiak"

Article Synopsis
  • The study examined how a plant-based phenolic supplement impacts the quality and storage of meat from pigs, focusing on factors like color, lipid oxidation, and antioxidant status.
  • Pigs fed the supplement showed improved meat qualities, including increased redness, myoglobin content, antioxidant activity, and enhanced juiciness compared to those on a standard diet.
  • Results indicated that the phenolic supplement reduced lipid oxidation in stored meat and improved antioxidant levels in the blood and liver, while certain parameters of meat quality significantly changed over a 10-day storage period.
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The aim of this study was to determine how different doses of phytase in diets with extruded soybean seeds and rapeseed meal affected pigs' growth performance, meat quality, bone mineralization, and fatty acid profiles. Sixty pigs were divided into three treatments by sex and body mass. Pigs were divided into starter (25 days), grower (36 days), and finisher (33 days) periods and fed with mash diets.

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Article Synopsis
  • Methane production and fatty acids biohydrogenation in the rumen negatively impact ruminant production and food quality; Coleus amboinicus Lour. (CAL) with high polyphenol content may mitigate these effects.
  • The study included in vitro and in vivo experiments with varying levels of CAL in lamb diets to assess its impact on methane reduction, fatty acid profiles, and meat quality.
  • Results showed CAL significantly reduced in vitro methane production by 51% and decreased in vivo methane production by 20%, along with a notable reduction in total methanogen counts.
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The research was conducted on the effect of bird broilers fed with different hybrid rye doses on the fatty acids profile in muscle. The first experiment was performed on 3 geese broilers groups fed with hybrid rye, oats or hybrid rye and oats mix in proportion 1:1. No effect of the hybrid rye feeding of geese on the SFA level in meat was observed, but the MUFA level was significantly higher and PUFA level and n-6/n-3 PUFA ratio were significantly lower than in geese fed with oats.

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The aim of the study was to determine the effect of feeding Zatorska variety geese hybrid rye, oats, or a mixture of both grains (1:1) on slaughter value and meat quality. At 14 weeks old, the birds were separated into three feeding groups ( = 12) and were fed between 15 and 17 weeks of age with hybrid rye, oats, or a mixture of these two grains. The research proved the effect of gender and feeding on some slaughter value traits and meat quality of the goslings' breast meat.

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An ultrasound examination was done on the m. longissimus lumborum, between the 10th and the 11th thoracic vertebra, on two sides (inside and outside the thoracic cavity) of the left half-carcasses of 162 fatteners. The carcasses were classified for lean meat percentage using the SEUROP system.

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The research was carried out on 32 crossbred pigs of Polish Large White × Danish Landrace with Duroc and 80 rams, crossbreds of the Prolific-Dairy Koludzka Sheep with the Ile de France, a meat sheep. The fodder for the animals was enriched with the unsaturated fatty acids originated mainly from linseed and rapeseed oils. The fatty acid profile was determined in cooked longissimus lumborum, roasted triceps brachii and raw ripened rump from pigs as well as in grilled lambs' legs and their corresponding raw materials.

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For nearly all pigs slaughtered in the EU, the lean meat content is assessed on-line at the slaughter line. The assessment is made indirectly by an instrument performing a number of informative measurements including the thickness of back fat as one of the most important and common measurements. Several types of instruments are used for making the measurements.

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