scholarly journals Determination of quality of poultry meat in case of damage to ectoparasites

Author(s):  
L. Nagorna ◽  
B. Vovk ◽  
D Dubinina

Introduction. Obtaining high-quality and safe poultry products is impossible without an integrated approach and competent solution of biosafety issues in farms. In conditions of poultry rearing using intensive technologies, the problem of ectoparasitic poultry damage, in particular the chicken tick Dermanyssus gallinae, is quite acute. The defeat of the bird by temporary and permanent ectoparasites is the reason for the deterioration of the quality characteristics of poultry carcasses. The goal of the work. The purpose of our research was to determination of the quality of poultry meat when affected by ectoparasites. Materials and methods of research. These studies were conducted under the conditions of the Department of Veterinary Expertise, Microbiology, Zohygiene and Safety and Quality of Livestock Products of Sumy National Agrarian University. For the study, carcasses of poultry of slaughter conditions were selected from a farm unsuccessful for the red chicken tick Dermanyssus gallinae. Results of research and discussion. In the course of the studies, it was proved that the slaughter yield of meat in chickens that were infected with ectoparasites was less compared to the slaughter yield of poultry meat obtained from farms or poultry houses that are relatively ectoparasite. In the meat of sick poultry, the moisture content increased by 2-3% and protein by 1-2%, while at the same time reducing the amount of fat by an average of 4%. As a result of studies, it was found that the changes found in meat indicated the development of pathological processes in meat, which led to the intensification of spoilage processes. Studies of carcasses obtained from healthy poultry found that they retained freshness for 9 days, and carcasses received from sick poultry, already for 5 days did not match the freshness of meat. Conclusions and prospects for further research. Based on a set of studies, we found that the qualitative indicators of meat of healthy and sick poultry differed. Intravital damage to poultry by ectoparasites caused changes in the chemical composition of meat, a decrease in its calorie content and biological value. In the future, it is planned to determine the qualitative characteristics of poultry carcasses in the associated course of nematodes and aсarosis.

1999 ◽  
Vol 39 (8) ◽  
pp. 55-62 ◽  
Author(s):  
Anastasios I. Stamou ◽  
Bogdana Koumanova ◽  
Stoyan Stoyanov ◽  
Georgy Atanasov ◽  
Konstantinos Pipilis

A general methodology for the study of water quality in rivers is presented. The paper consists of four parts. In the first part the general characteristics of the area of study, which is the Beli Lom river, and its major pollution sources are presented. The effluent of the Razgrad Wastewater Treatment Plant (RWWTP) has been identified as the most significant pollution point source, due to the inadequate performance of the plant. The second part deals with data collection and processing. Four series of data have been collected, including physical, flow and water quality characteristics. In the third part a 1-d, finite-difference, second-order model is presented. In the fourth part, the model is calibrated, for the determination of its main coefficients, and is successfully verified by predicting the BOD and DO concentrations in the Beli Lom river for all series of data. Finally, the model has been applied to determine the maximum BOD and minimum DO effluent concentrations of the RWWTP, so that a minimum DO concentration is maintained throughout the river.


2020 ◽  
Vol 17 ◽  
pp. 00154
Author(s):  
Sergei V. Beketov ◽  
Alexander V. Kozlov ◽  
Oleg V. Gorbunov ◽  
Natalia A. Golovacheva

In the article a brief description of new analytical methods for the indirect determination of bacterial contamination of the finished feed mixture and dry feed for fur-bearing animals by the level of adenosine triphosphate (ATP) and ammonia are provided. The prospects for their use in comparison with the method of analysis of total volatile nitrogen are assessed.


2012 ◽  
Vol 32 (2) ◽  
pp. 250-254 ◽  
Author(s):  
Moacir Couto de Andrade Júnior ◽  
Jerusa Souza Andrade

Cubiu shrubs (Solanum sessiliflorum Dunal) have drawn the attention of researchers for their biological versatility (preferential heliophilous or facultative ombrophilous shrubs), their capacity to grow in upland or lowland areas, and the good technological quality of their fruits for the food industry. The aim of this study was to verify physicochemical changes in cubiu fruits during maturation. The fruits were harvested from the experimental station of olericulture of the Instituto Nacional de Pesquisas da Amazônia (INPA), Brazil. The analyses were performed in whole cubiu fruits (peel, pulp, and placenta) at four traditional ripening stages (green, turning, ripe, and fully ripe) for the determination of weight, moisture, total solids, total carotenoids, proteins, lipids, and ash. Cubiu fruits showed large weight variation, with amodal distribution. The ripe stage was critical to maintain moisture, and from that stage on, water loss became evident. The lipids increased steadily over the four ripening stages, maintaining, however, insignificant calorie content. Total carotenoids, proteins, and ash reached the maximum level at the fully ripe stage. With the exception of weight and moisture, all physicochemical changes exhibited the same general behavior, i.e. they increased as the fruits ripened at the four investigated stages.


2016 ◽  
pp. 35-39
Author(s):  
I. M. Skvira

Objective: to develop, test, and introduce new methods of helping people suffering from alcohol dependence. Material and methods. We have performed a comparative study of a representative sample of patients with alcohol dependence (F 10.202) in compensated (I group, n = 88) and subcompensated (II group, n = 44) remission. Results. It has been found that the highly significant comprehensive examination using clinical, psychological, and laboratory methods (sensitivity - 81.4 %, specificity - 80.0 %) makes it possible to diagnose the threat of relapse in patients with alcohol dependence. Conclusion. The proposed integrated approach to the determination of the quality of remission is a new, effective, simple, and easily accessible way of providing targeted assistance to persons with alcohol dependence.


2019 ◽  
Vol 21 (96) ◽  
pp. 129-133
Author(s):  
N. M. Khomyn ◽  
A. R. Mysak ◽  
S. V. Tsisinska ◽  
V. V. Pritsak ◽  
Yu. M. Lenyo ◽  
...  

It is well known that the value of full feeding of farm animals is an important condition for the production of livestock products. Because of the researches of many scientists was found that the value of feed is determined by the content of proteins, fats, carbohydrates, as well as vitamins, minerals and so on. However, the true value of the feed is determined by the part that is digestible and can be used by the body in the metabolism process. In the event of a violation of feeding level associated with the lack of nutrients or minerals of animals or their deficiency, the development of osteodystrophic processes is observed, which directly contribute to changes in the tendon-ligamentous apparatus of the finger of animals, there is an occurrence of prolonged osteotendinitis of the finger flexors, which causes to fingers extension, partially or completely removed from the hoof wall support, and overload of crumbs. Tightening of the crumb support is accompanied by the appearance of the skin of the hoof inflammatory process, excessive horn growth and deformation of the horn capsule. The final confirmation of osteodystrophy is the results of a multivariate mass volumetric analysis of the skeleton state and determination of the magnitude of the angles of the joints of the fingers. On the side of the hoof horn, there is an increase in the moisture content and SH-groups and a decrease in g-keratosis, which affects the biophysical properties of the hoof horn, which are shown by a decrease in density and hardness. Such changes indicate a deterioration in the quality of the hoof horn, a confirmation of which is a decrease in the intensity of erasing of the sole horn, the development of deformation and the occurrence of aseptic inflammation of the base of the skin of the sole horn.


This study was carried out to assess the quality of some RTE (ready to eat) chicken meat products collected from different poultry meat processing plants in Menofia and Gharbia governorate. a A total of 60 commercially produced RTE poultry products such as chicken ham, chicken shawarma, chicken with herps, smoked turkey and turkey smoked lobes (12 each) were collected from supermarkets and examined for sensory, deterioration criteria and bacteriological quality. The results revealed that the sensory panel scores of all examined RTE poultry meat products samples were generally low especially in chicken with herps, chicken ham and smoked turkey RTE poultry meat products. Moreover, pH values of most of the examined samples were relatively alkaline whereas the lowest value was recorded in smoked turkey samples and highest value was observed in chicken with herps samples. In addition, higher thiobarbituric acid (smoked turkey) and slightly increases of total volatile basic nitrogen values (chicken with herps) were recorded in most of the examined samples. All investigated bacterial counts were significantly high in all examined RTE poultry meat products samples. Staph. aureus was isolated from chicken ham and E. coli strains were isolated from chicken shawarma, smoked turkey and turkey smoked lobes. However, E. coli O157:H7 and salmonella strains failed to be isolated from all the examined samples. It could be concluded that all the examined RTE poultry meat products were deteriorated in terms of sensory, chemical and bacteriological terms and exceeded the limit described by E.S. (3493/2005) for cooked poultry meat products. In addition, these samples were probably produced and prepared under bad hygienic measures which could be responsible for lowering their quality and reduce shelf life.


2018 ◽  
Vol 15 (1) ◽  
pp. 22
Author(s):  
Ulvi Fitri Handayani ◽  
Maria Endo Mahata ◽  
Yose Rizal ◽  
Irfan Suliansyah ◽  
Wizna Wizna

One of the important things in determining the quality of livestock products is feed ingredients. The quality of Poultry products will be influenced by the nutrient intake provided. Tomato reject is one of the special ingredients of a feed because it contains high lycopene. Lycopene is well known as an antioxidant, also it can lower cholesterol content. However, lycopene still in the matrix of tomato tissue and trans-form lycopene what difficult to digest and absorb in the body. So, in this paper presents the extent to which the development of research utilization of tomatoes high lycopene as poultry feed. As well as opening more widely how to increase the value of lycopene tomatoes in poultry products.


2017 ◽  
Vol 19 (77) ◽  
pp. 148-152
Author(s):  
M.S. Khimich ◽  
A.M. Gorobei ◽  
F.V. Kozulin ◽  
V.V. Zhekov

In accordance with the modern requirements of the international control system (HACCP), it is necessary to abandon the control of the final product for the purpose of identifying shortcomings, but to proceed to the preventive approach of eliminating potential sources of danger at all stages of production. A step-by-step system for controlling the quality of livestock products, in particular meat, in the absence of modern technology of primary processing and quality veterinary and sanitary control, is complex. Therefore, to ensure the safety and quality of meat, it is necessary to improve and scientifically justify the methods of their control, bringing it closer to international requirements. The purpose of our research was to monitor the safety and quality of slaughter products for pigs obtained in the conditions of the Odessa region. The material of the research was reporting on veterinary medicine (Form No. 6-vet., Form No. 5- vet., Form No. 2a-vet.) In the districts of the Odessa region for 2014–2016, which was processed statistically. The analysis has established that for 2014–2016. In the investigated areas, only 28846 pigs were slaughtered, and 74.48% of the slaughter took place. It was found that according to the results of the pre-blast inspection and post-mortem veterinary examination of pig carcasses, 83 cases of diseases, echinococcosis, were detected during the reporting period. For the reporting years, 17103 carcasses of pigs were supplied to the agro-food markets of the study areas. Employees of laboratories for veterinary and sanitary examination in the markets conducted 65417 laboratory studies: all carcasses of pigs were examined organoleptically (including cooking breakdown), trichinoscopy and studies for phychosis and other parasitic diseases were performed; The determination of physicochemical parameters and bacterioscopy of mascara were carried out in individual cases; radiological and other studies were not conducted. During the veterinary and sanitary examination, 662 cases of diseases were detected in the laboratories of veterinary and sanitary examination in the markets: 65 cases of non-communicable diseases and 597 cases of invasive diseases. And draws attention to the fact that 99.83% of the identified invasive diseases was echinococcosis. Comparative analysis of the results on the detection of cases of echinococcosis, depending on the location of Veterinary control, found significant discrepancies– after post-mortem veterinary and sanitary control, only 7.26–26.27% of cases are detected, in comparison with the results of veterinary and sanitary examination of slaughter products in laboratories for veterinary and sanitary examination In the markets. This imbalance, in our opinion, can be related to homestead slaughter and poor quality post-mortem Veterinary control during it. Summarizing the obtained results of the analysis, we can conclude that the management system for the safety and quality of slaughter products in pigs in the regions of the Odessa region at the present stage still relies on the analysis of the final product, not taking into account the preventive approach.


2012 ◽  
Vol 84 (3) ◽  
pp. 853-863 ◽  
Author(s):  
Nicácia P. Machado ◽  
José C. Fachinello ◽  
Simone P. Galarça ◽  
Débora L. Betemps ◽  
Mateus S. Pasa ◽  
...  

Recently, non-destructive techniques such as the Vis / NIR spectroscopy have been used to evaluate the characteristics of maturation and quality of pears. The study aims to validate the readings by the Vis / NIR spectroscopy as a non-destructive way to assess the qualitative characteristics of pear cultivars 'Williams', 'Packams' and 'Carrick', produced according to Brazilian conditions. The experiment was conducted at the Pelotas Federal University, UFPel, in Pelotas / RS, and the instrument used to measure the fruit quality in a non-destructive way was the NIR- Case spectrophotometer (SACMI, Imola, Italy). To determine pears' soluble solids (SS) and pulp firmness (PF), it was established calibration equations for each variety studied, done from the evaluations obtained by a non-destructive method (NIR-Case) and a destructive method. Further on, it was tested the performance of these readings by linear regressions. The results were significant for the soluble solids parameter obtained by the Vis / NIR spectroscopy; however, it did not achieve satisfactory results for the pear pulp firmness of these cultivars. It is concluded that the Vis / NIR spectroscopy, using linear regression, allows providing reliable estimates of pears' quality levels, especially for soluble solids.


2017 ◽  
Vol 1 (1) ◽  
pp. 64-67 ◽  
Author(s):  
Lidija Perić ◽  
Mirjana Đukić Stojčić ◽  
Siniša Bjedov

AbstractQuality of poultry products, especially eggs, is a very important issue for the consumers and for the processing industry. The aim of the present study was to examine the interaction between the storage time and age of laying hens and their effect on the quality of table eggs. Eggs from 34 and 59- wk-old Bovans Brown hens were sampled and stored in the refrigerator for 1, 2, and 3 weeks. Significant effect of hen age (P<0.01) was found on egg weight, shell strength, albumen height and Haugh units (HU). Eggs from older hens had 2.58% higher mass compared to the eggs of young hens. Eggs from 59-weeks old hens had significantly lower shell strength (3.63 kg vs. 4.31 kg). Albumen height and HU were lower in eggs from the older hens compared to the young ones (5.7 mm vs. 7.11 mm for albumen height; 70.35 vs. 81.77 for HU). Significant negative effect of storage time was found on egg weight, albumen height, HU and yolk colour (P<0.01). The results indicated that egg quality characteristics monitored in this study decrease by hen age and during storage. The interaction effects between storage time and age of hens were significant only for yolk colour (P<0.05).


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