Друковані видання

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Browsing Друковані видання by Subject "carcass quality"

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    Perspectives of use of totai meat percentage as a selection criterion in pig industry of Ukraine
    (Wageningen Academic Publishers, 2015) Kravchenko, O. I.; Getya, A. A.; Кравченко, Оксана Іванівна; Гетя, Андрій Анатолійович
    The demand for lean pork is being increased in Ukraine for recent years. This tendency is taken into consideration by the pig industry which improves housing- and feeding technology. At the same time specialized genotypes, including imported animals from different countries, became more and more popular. Over the last 10 years the average daily gain in Ukrainian pig farms increased by 1.96 times. But due to an outdated payment system for the animals delivered to slaughterhouses one of the main criteria for the carcass quality assessment, namely ‘total meat percentage’ (TMP), is not evaluated. To analyse the carcass quality based on TMP and to prove the need of involvement of this trait into Ukrainian breeding programs 7,246 pigs from 12 farms in central Ukraine were slaughtered. The measurements o f TMP were done using CGM-device. The average weight of carcasses of gilts and castratcs was 88.38 kg and 89.03 kg respectively. The TMP o f carcasses o f gilts was 59.30% and o f castrates 57.60%. Despite the fact that according to Ukrainian classification system all carcasses were related to the 2nd class, a considerable variation o f total meat percentage was established. So, the average value of this trait in the worst 30% carcasses o f gilts and castrates was 50.00±1.22% and 48.50± 1.19% respectively while in best 30% - 64.50±0.76% and 64.00±0.91%. The difference between 30% best and 30% worst carcasses o f gilts and castrates was 14.5% and'l 5.5% respectively (P<0.001). Understanding the importance of trait TMP for efficiency of pig industry the implementation o f European payment system is needed as well as integration of this trait into breeding programs o f Ukrainian genetic companies.
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    Quality of pig carcasses of surgical- and immunocastrated males slaughtered at different live weight
    (Wageningen Academic Publishers, 2018) Povod, M.; Kravchenko, O. I.; Getya, A. A.; Kodak, O.; Кравченко, Оксана Іванівна; Гетя, Андрій Анатолійович
    effectiveness of fattening. Traditionally Ukrainian pork producers slaughter the animals with live weight 100-110 kg but would like to raise the weight before slaughter, working with hybrid pigs. According to reports of some researchers the increasing of weight before slaughter causes worsening of carcass quality, especially in surgically castrated and entire males. As a solution the immunological castration can be taken into account especially for rising heavy weight pigs. This assumption has been investigated in presented research. The trial has been organized under the condition of commercial farm on hybrid animals (Yorkshire* LangrassxMaxgro). Two groups of pigs with 30 heads in each were formed (surgical and immunological castrated males). Surgical castration was done at the age 4 of days, immunological - by application of Improvac vaccine in accordance to the instructions for use. All animals were kept together and slaughtered at the same time but with different weights: from 100 till 120 kg. Carcass evaluation was made using Fat-o-Meater S71. The thickness of the backfat was measured at the level of 6-7 thoracic vertebra, and at sacrum. Carcass grading has been done using EUROP and Ukrainian scale. Sensory evaluation of carcasses after slaughter was performed. The results suggest that increasing of live weight before slaughter of immunocastrated males till 120 kg does not influence negative their carcass quality. Dressing percentage of carcasses did not depend on live weight before slaughter in both groups. Carcasses of immunocastrated males had lower backfat thickness measured at 6-7 thoracic vertebra: slaughter at 100 kg - by 2.8 mm; slaughtered at 120 kg - by 3.3 mm. After slaughter at weight 120 kg 70% of carcasses of immunocastrated males were graded E + U, while in the group of surgical castrated males such carcasses were only 50%. It was not detected critical level of boar odour in all slaughter weights.
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    Research on carcass quality of pigs grown up in different farms
    (2019-04-11) Koscelkovskienė, I.; Pupelienė, I.; Ribikauskienė, D.; Živatkauskienė, I.; Kravchenko, O. I.; Кравченко, Оксана Іванівна
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    Застосування імунокастрації для покращання якості туш кнурів в умовах промислового виробництва свинини в Україні
    (Вісник аграрної науки Причорномор’я. https://visnyk.mnau.edu.ua, 2017) Кравченко, Оксана Іванівна; Kravchenko, O. I.; Гетя, Андрій Анатолійович; Getya, A. A.; Повод, Микола; Povod, M.
    У роботі представлено порівняльний аналіз якості туш, отриманих від імунокастрованих та хірургічно кастрованих кнурів. Встановлено, що туші імунокастрованх кнурів мали меншу товщину шпику по всій туші, вищий вміст м’язової тканини, а також переважали хірургічно кастрованих за вмістом великокускових напівфабрикатів (ошийок, корейка, м’ясо окосту). In this article the results of comparative analyze of carcass quality of immunocastrated versus surgically castrated boars are shown. It has been determined that the carcasses, obtained from immunocastrated boars, had lower backfat level over the whole carcass and higher meat content. They also had higher content of semi-fi nished products like neck, loin, ham. В данной статье представлены результаты сравнительного анализа качества туш, полученных от иммунокастрированных и хирургически кастрированных хряков. Установлено, что туши иммунокастрированных хряков имели меньшую толщину шпика по всей туше, болеем высокое содержание мышечной ткани, а также превосходили хирургически кастрированных по содержанию крупнокусковых полуфабрикатов (ошеек, корейка, мясо окорока).