scholarly journals BEAF QUALITY OF PURE-BRED AND CROSS-BRED BEEF CATTLE OF SIBERIA

2019 ◽  
Vol 48 (5) ◽  
pp. 45-51 ◽  
Author(s):  
B. O. Inerbaev ◽  
N. V. Borisov

The paper presents requirements to high-quality beef in terms of its general view, biochemical composition, taste and nutritional properties. The parameters which determine the taste, aroma, juiciness, tenderness of meat, as well as the strength and richness of the broth are given. Quality of beef obtained from animals of different beef breeds and their hybrids was assessed. Meat quality of the Hereford breed is higher than that of other most common breeds by the main parameters. The effect of the cow class on the meatproductivity of the young Hereford bulls was experimentally established. They were superior to animals of the control group in pre-slaughter weight by 25 kg (6.4%), slaughter weight - by 15.4 kg (7.5%), relative mass of flesh - by 7.8 kg, half-carcass weight - by 8.1 kg (7.6%). At the age of 20 months Hereford x Simmental steers of the 1st generation and heifers of the 3rd generation were characterized by high quality meat. Depending on housing conditions (with an area of 3.5 m 2 per head), the Kazakh-white-headed x Simmental steers of the 1st generation were in the lead in terms of meat quality. When fattened at the site, the Kazakh-white-headed x young Simmental bulls and heifers of the 1st generation were superior. The positive effect of semen production of Australian stud bulls on meat marbling of Siberian analogues (6 points) was experimentally proven. A new accelerated method of taking a sample of meat for research is described. In this method probes are taken from four easily accessible large muscles: m. supraspinatus, longissimus dorsi, m. iliopsoas (fillet), m. semimembranosus. Their biochemical composition is determined, after which the quality composition of carcass flesh is defined by a special formula with allowance for correction factors.

2021 ◽  
Vol 32 ◽  
pp. 04009
Author(s):  
Irina Chervonova

The article presents the results of studying the impact of the spore-forming probiotic “Olin” and the prebiotic “Eсofiltrum” on the meat quality of broiler chicken carcasses of the Ross-308 cross. In the course of the research, it has been found that the inclusion of these preparations in the broiler diet has a positive effect on the studied indicators: the pre-slaughter weight increased by 4.3-5.7%, the weight of the gutted carcass by 4.6-6.2%, the muscle weight 4.8-6.5%, the weight of the loin muscles by 5.7-8.2%. The ratio of edible parts to inedible parts is 4.14 in the third experimental group, 4.08-in the second, and 4.04-in the control. Based on the results of the anatomical cutting of broiler carcasses and according to the fatness indicators the poultry carcasses of the third and second experimental groups, 87.5% and 87.2%, respectively, belong to the first grade, and the yield of the first grade carcasses is 86.2% in the control group. Meat products obtained from both the control poultry and the poultry of both experimental groups has no off-aroma odor and taste, the meat is juicy, tender and aromatic. The products obtained from broiler chickens, whose ration includes the probiotic “Olin” and the prebiotic “Ecofiltrum”, do not have any deviations from the established standards and norms. During the research, it has been found that the use of the studied drugs has a positive effect on the meat quality of poultry carcasses. However, broiler chickens receiving the probiotic “Olin” has more pronounced meat qualities.


10.5219/1334 ◽  
2020 ◽  
Vol 14 ◽  
pp. 135-141
Author(s):  
Ivan Imrich ◽  
Eva Mlyneková ◽  
Juraj Mlynek ◽  
Marko Halo ◽  
Tomáš Kanka

The aim of this study was to compare the quality of musculus longissimus dorsi in the breeds of Mangalitsa and Large White with regard to the slaughter weight. Large White (LW) breed and White Mangalitsa (Ma) breed were used in the experiment. The system of housing and feeding was the same in both of the monitored breeds. The pigs were fed with the same feeding mixture ad libitum. According to the slaughter weight, the pigs were divided into three groups: up to 100 kg, 101 – 110 kg and over 110 kg. The breed Ma had a significantly lower drip loss than the breed LW. Evaluating the color of the meat, the LW breed has showed significantly higher L* (lightness, white ±black) and lower a* (redness, red ± green) values than the Ma breed. Within the chemical meat composition, the Ma breed had a significantly higher water content in MLD compared to the LW breed. Generally, there were no major differences in the meat quality between the Mangalitsa and Large White breeds. Finally it can be concluded that the breed Mangalitsa showed more favorable values of the physico-chemical indicators. Comparing the quality of the meat with regard to the slaughter weight, there were no large differences between individual weight groups. A higher slaughter weight has positively influenced mainly the color of the meat, as pigs weighing more than 110 kg achieved a significantly lower value of L* and a higher value of a* in comparison to pigs of the lower weight. As a positive effect of a higher slaughter weight can be considered its effect on the protein content in the meat, as pigs weighing over 100 kg have a significantly higher protein content in the meat than pigs weighing below 100 kg.


2012 ◽  
Vol 30 (No. 5) ◽  
pp. 474-482 ◽  
Author(s):  
L. Siříšťová ◽  
Š. Přinosilová ◽  
K. Riddellová ◽  
J. Hajšlová ◽  
K. Melzoch

The production technology of high-quality vodka used in Russia involves filtration through activated charcoal. To approach the quality of renowned Russian vodka, one prominent Czech spirit-producing company installed on its production premises a filtration device including a charcoal column, and launched test runs during which different filtration conditions were tested. Samples collected during the test runs were analysed by GC-FID and GC-MS with the aim to compare their composition; sensory analysis was an integral part of the evaluation. The results documented a positive effect of charcoal filtration on the quality of produced vodka, which was not reduced when higher flow rates were applied.  


Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1581
Author(s):  
Artur Rybarczyk ◽  
Elżbieta Bogusławska-Wąs ◽  
Alicja Dłubała

The objective of the study was to determine the effects of probiotic bacteria Bacillus licheniformis and Bacillus subtilis on microbiological properties of feed mixtures and on the digestive tract content as applicable to production traits and carcass characteristics of fatteners. The experiment was performed on 83,838 fatteners from four successive (insertions) productions in two groups. From the seventy eighth day of age till marketing to the slaughter plant, the pigs were supplied with BioPlus YC probiotic (Chr. Hansen) in the amount of 400 g/t. The preparation contained a complex of probiotic bacteria Bacillus licheniformis DSM 5749, and Bacillus subtilis DSM 5750 spores in a 1:1 ratio. From the fourth insertion, after reaching a body weight of approximately 112 kg, 60 fatteners were selected from each group to measure carcass quality and half of them for meat quality evaluation. Moreover, microbiological analyses in feed and colon were performed. The study showed that BioPlus YC probiotics supplementation resulted in a significantly higher count of B. subtilis and B. licheniformis in the feed, a higher count of B. subtilis, B. licheniformis and LAB, as well as a lower count of Enterobacteriaceae, Enterococcus, Clostridium and Bacillus sp. in the mucosa and in the colorectal content of the test pigs. Our work has shown that supplementation with the BioPlus YC probiotic had a positive effect on the production traits of pigs mainly by reducing mortality (2.83%, p = 0.010), lowering feed conversion ratio—FCR (2.59 kg/kg, p = 0.013), better average daily gain—ADG (0.95 kg/day, p = 0.002) and shorter fattening period (77.25 days, p = 0.019) when compared to the control group (4.19%; 2.79 kg/kg; 0.89 kg/day; 92.8 days, respectively). The addition of the specific Bacillus bacteria did not influence carcass and meat characteristics of the test fatteners.


Animals ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 204 ◽  
Author(s):  
Rosaria Marino ◽  
Mariangela Caroprese ◽  
Giovanni Annicchiarico ◽  
Francesco Ciampi ◽  
Maria Ciliberti ◽  
...  

In the last years several studies have investigated the strong relation between nutrition and immune response in the livestock production, particularly in dairy cattle and sheep. The aim of this study was to evaluate the effects of supplementation based on linseed, quinoa seeds and their combination on welfare, productivity and quality of meat from merinos derived lambs. 32 weaned lambs were divided into 4 experimental groups: quinoa (Q), linseed (LS) and combination of quinoa and linseed (LS + Q) that received the respective supplementation and control group (C) without supplementation. Lambs from all supplemented groups showed lower plasma urea, creatinine and cholesterol than control. Both linseed and quinoa supplementation enhanced the cell-mediated immune responses of lambs, furthermore, linseed supplementation resulted in the lowest level of cortisol secretion after handling, loading and transport. Meat from lambs supplemented with linseed and LS + Q showed the highest pH, at 1 and 3 h post-mortem, while, meat from all supplemented groups was more tender than meat from control. Results indicated that linseed and quinoa seeds supplementation can help the animal to cope with stressful events due to the close link between stress responses and the immune system and for improving meat quality in terms of better tenderness.


Author(s):  
S. I. Nikolaev ◽  
O. V. Korneeva ◽  
V. V. Shkalenko ◽  
A. K. Karapetyan ◽  
L. A. Syuliev

The experiment has been carried out on a crossbred stock of young pigs in the period 2015–2017 under the conditions of JSC CHC “Krasnodonskoe” in the Ilovlinsky district in the Volgograd region. The purpose of the research was to study the effectiveness of the effect of the anti-stress drug Feed-Food Magic Antistress Mix in intensive pig rearing on the productive traits and quality of the products obtained, as well as the estimated economic indicators. In order to conduct a scientific and economic experiment at the age of 60 days young pigs were divided into 2 experimental groups (control and experimental) according to the principle of pair analogs. Each group contained 25 heads. The difference between the control and experimental groups was that the animals in the control group have received the main diet, and the experimental group has received the anti-stress drug Feed-Food Magic Antistress Mix in addition to the main diet. In the experimental group of pigs when this drug was administered in the age 180 days the live weight parameter was higher than in the control group by 1,55 kg. Clinical indicators of young pigs were within the physiological norm. The pre-slaughter weight in the experimental group has increased by 4,86 % compared to the control group. Due to the use of an anti-stress drug the slaughter weight of animals in the experimental group has increased by 6,69 %. In comparison with the control group the slaughter yield in the experimental group has increased by 1,18 %, in which this indicator was at the level of 67,62 %. The morphological composition of carcasses in animals of the experimental group was also improved. Meat yield has increased by 0,95 %. The yield of fat and bones has decreased by 0,59 and 0,36 %. The weight of internal organs was also superior in the experimental group of pigs. Due to the use of the anti-stress drug the level of profitability in the experimental group of animals has increased by 11,69 %.


2011 ◽  
Vol 26 (2) ◽  
pp. 79-89 ◽  
Author(s):  
Vasiliki Papanikolaou ◽  
Gloria R Leon ◽  
John Kyriopoulos ◽  
Jeffrey Levett ◽  
Eleftherios Pallis

AbstractIntroduction: Major disasters disrupt the infrastructure of communities and have lasting psychological, economic, and environmental effects on the affected areas. The psychological status and community effects of the devastating 2007 wildfires on the Peloponnese Peninsula of Greece were assessed six months following the disaster.Methods:Adult inhabitants, 18–65 years of age, living in villages affected by the wildfires were selected randomly and compared with a demographically similar group living in neighboring villages that were unaffected by the fires. Regions were chosen based on the extent of fire damage in that area. There were 409 participants in the fire group, and 391 in the control group. Participants completed a questionnaire that included the SCL-90-R symptom checklist, a subjective perception of health status, and a series of items assessing views about current problems, personal values, and trust in different institutions.Results:The fire group scored significantly higher on psychological distress compared to the control group. Both groups viewed their health status in the previous year as better than at the present time. There were few significant differences between groups in the designation of regional problems, attitudes, and values. In the total sample, 41.6% listed unemployment, and 15.0% listed poverty as the most important problem in their region. The Church was indicated as the most trusted institution by 36.7% of the group and the Government by 13.3%. A total of 30.2% did not have a trusted institution.Conclusions:The hardiness and resilience of the fire-impacted group was evident. However, an improvement in economic conditions is needed to maintain the health and enhance the quality of life of the population living in the Peloponnese region. This improvement likely would have a positive effect on the attitude of trust in government institutions.


1965 ◽  
Vol 5 (18) ◽  
pp. 243
Author(s):  
DG Fowler

One group of 11 medium wool Peppin Merino rams was kept in short wool during summer 1960-61 (treatment). A second group remained unshorn during this period (control). Semen was collected from all rams at 14-day intervals during the summer period, October 1960 until March 1961, and from control rams until 243 March 1962. Both groups of rams had semen of similar and high quality during summer 1960-61. In the control group there was significant monthly variation for all semen characteristics studied but semen quality remained generally high. Significant differences were found between individual rams for all semen characteristics studied, some rams having markedly degenerate semen during the summer periods.


2020 ◽  
Vol 33 (5) ◽  
pp. e100184
Author(s):  
Zhihang Zhang ◽  
Xiang Gao ◽  
Ying Zhou ◽  
Chao Yu ◽  
Jittikorn Pimolsettapun ◽  
...  

BackgroundErectile dysfunction (ED) has gradually become an important issue that seriously affects the quality of life of Chinese men. In addition to classic oral medications, psychotherapeutic interventions are increasingly being used in the treatment of ED.AimThis study aims to investigate the clinical efficacy of brief psychodynamic psychotherapy (BPP) plus Viagra in the treatment of non-organic ED.MethodsWe initiated this study via a controlled, prospective experimental design with initial optimal efficiency standard greater than 10%. On the standard, 63 patients were enrolled who were assigned to control or treatment group. The control group (including 33 cases) received Viagra treatment for 2 months, and the treatment group (including 30 cases) was cured with BPP plus Viagra. After the treatments, the clinical efficacy was assessed using the International Erectile Function Index (IIEF-5) score, the Self-rating Anxiety Scale (SAS), Sexual Satisfaction (SS) score and Erection Hardness Score (EHS).ResultsIn the comparison of efficacy, pretreatment and post-treatment within each group, the two groups showed improvements in IIEF, SAS scores, SS, and EHS (treatment group: PIIEF<0.001, PSAS<0.001, PSS<0.001, PEHS<0.001; control group: PIIEF<0.001, PSAS<0.001, PSS<0.001, PEHS<0.001). Furthermore, the treatment group presented better performances in IIEF (p=0.040), SAS (p=0.006), SS scores (p=0.045) and EHS (p=0.041) than the control group.ConclusionThe combination of BPP with Viagra has positive effect on the treatment of non-organic ED.


2007 ◽  
Vol 6 (sup1) ◽  
pp. 698-700 ◽  
Author(s):  
G. Maiorano ◽  
C. Cavone ◽  
K. Paolone ◽  
F. Pilla ◽  
M. Gambacorta ◽  
...  

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