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Herman Yuri Ivanovich, PhD, associate Professor
Herman Anzhelika Ivanovna,
Sadykov Evgenij Valer'evich
Republican unitary enterprise "Scientific and practical centre of the National Academy of Sciences of Belarus on animal husbandry"

DOI https://doi.org/10.32900/2312-8402-2019-121-86-95

Keywords: ranking, breeding value index, producing sheep stock, origin, measurements, exterior.

Abstract

One of priority objectives of the State program for development of agriculture and regulation of markets for agricultural product, raw materials and food until 2020 is to provide conditions for accelerated development of livestock production with sheep breeding being its branch. In order to restore the branch, increase production in sheep breeding and improve quality, it is required to carry out the full range of activities prescribed in the above program. Managers of sheep farms, students, practitioners, farmers, and also graduates of higher educational institutions of agricultural profile must possess the most modern practical skills in the field of sheep breeding, methods and techniques of sheep zootechnical evaluation.
 
Success of breeding work largely depends on the ability to determine the breeding value of animals in the most possible objective way. To obtain competitive sheep of Belarusian generation satisfying the variety of meat-and-wool and wool-and-meat indicators of productivity, selection by set of traits (origin, typicality, measurements, exterior, fertility, offspring quality) is required, which has not been used at breeding enterprises and sheep breeding farms so far.
 
During transition from score to index assessment in our country, necessity to develop new complexes for assessment of economically useful traits of sheep of semi-fine-wool breeds is dictated by time, and today is highly relevant. New techniques and methods for assessing the breeding value of sheep have not been developed in the republic yet. The authors of the paper propose to consider a separate element of determining the breeding value of sheep of semi-fine-wool breeds due to transition to index assessment, namely, for the first time developed scale for ranking sheep ewes and producing rams in the future, correlated with breeding value indices.

References

1. Respublikanskaya programma po plemennomu delu v zhivotnovodstve na 2011 – 2015 gg. : Postanovlenie Soveta Ministrov Respubliki Belarus' – The Republican program on breeding business in animal husbandry for 2011–2015 : Resolution of the Council of Ministers of the Republic of Belarus of 31.12.2010. Minsk. http://www.mshp.gov.by/documents/plem/programma.pdf [in Russian].

2. Gurevnina, I. V. (2002). Optimizaciya metodov opredeleniya plemennoj cennosti ovec [Optimization of methods of determining the breeding value of the sheep]. Extended abstract of candidate’s thesis. Persianovsky. [in Russian].

3. Vineaminov, A. A., & A. M. Zhiryakov (1980). Metodicheskie rekomendacii po izucheniyu produktivnyh i biologicheskih osobennostej ovec malochislennyh porod i gruppGuidelines for the study of productive and biological characteristics of sheep of small breeds and groups.VNII zhivotnovodstva. Dubovtsy [in Russian].

4. Нerman, Ju. I., & Gorbukov, M. A., Chavlytko, V. I., Rudak, A. N., Нerman, A. I. (2019). Zootehnicheskie pravila ocenki ovec polutonkorunnyh porodZootechnical rules for evaluation of semi-fine-wooled sheep breeds. RUE "Scientific and practical center of the national Academy of Sciences of Belarus on animal industries". Zhodino. [in Russian].

5. Respublikanskaya programma razvitiya ovcevodstva na 2013 – 2015 gg. :Postanovlenie Soveta Ministrov Respubliki Belarus' ot 20.03.2013 –The Republican program of development of sheep breeding for 2013–2015 :Council of Ministers Of the Republic of Belarus from 20.03.2013, 202. [in Russian].

6. Zootekhnicheskie pravila o poryadke opredeleniya plemennoj cennosti zhivotnyh : Postanovlenie Ministerstva sel'skogo hozyajstva i prodovol'stviya Respubliki Belarus' ot 30. 11. 2006 – Zootechnical rules on the procedure for determining the breeding value of animals : Ministry Of agriculture and food of the Republic of Belarus, 30. 11. 2006, 81 [in Russian].

7. О plemennom dele v zhivotnovodstve : Zakon Respubliki Belarus' – Оn breeding in animal husbandry : law of the Republic of Belarus. Registered in the National register of legal acts of the Republic of Belarus 21. 05. 2013, 2/2022 [in Russian].

8. Zavertyaev, B. P. (1983). Kratkij slovar' selekcionno-geneticheskih terminov v zhivotnovodstve Short dictionary of selection and genetic terms in animal husbandry. Moscow : Rosselkhoznadzor, 88 [in Russian].

9. Rokickij, P. F. (1973). Biologicheskaya statistikaBiological statistics. 3rd edition. Minsk : Vysheishaya school  [in Russian].

10. Larceva, S. H. (1985). Praktikum po genetikeWorkshop on genetics. Moscow : Agropromizdat, 49–55 [in Russian].

11. Kening, K., & Gutche, H., Hojrih, H., Kupac, B. (1974). Razvedenie, kormlenie i soderzhanie ovecBreeding, feeding and keeping sheep. Moscow : Kolos, 133–147 [in Russian].

 

 

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Anastasiya Datsenka, student
 Hanna Kanavod, student
 Lizaveta Belaya, student
Valeriya Klimovich,
student
Mariola Truchan,
Ph.D.
Halyna Tkachenko
, Doctor of Biological Sciences
Institute of Biology and Environmental Protection, Pomeranian University in Słupsk, Poland

DOI https://doi.org/10.32900/2312-8402-2019-121-23-32

Keywords: rapeseed oil, olive oil, rice oil, rosemary essential oil, 2-thiobarbituric acid reactive substances, lipid peroxidation.

Abstract

We hypothesized that rosemary essential oil would inhibit or reduce lipid oxidation in plant oils due to the antioxidative properties. The aim of this study was to investigate the content of 2-thiobarbituric acid reactive substances (TBARS) in the various plant oils (rapeseed oil, olive oil, rice oil) with the use of rosemary essential oil (Etja, Elblag, Poland) as antioxidant agent by monitoring the lipid peroxidation during one month storage period.
  The effect of the interaction of the addition of REO and storage time on TBARS value in the rapeseed oil.
  Lipid oxidation increased significantly (p<0.001) during storage, particularly in the control sample (the rapeseed oil), which showed the highest increase at 8 days (19-fold increased) and at 40 days (14.4-fold increased). The REO decreased lipid oxidation compared to the control sample by 23.9 % (p<0.05) at 8 days and by 9.4 % (p>0.05) at 40 days. At 15 days, the TBARS values reached approximately 22.31 μmols∙mL-1, corresponding to a lipid oxidation increase of approximately 33.8% (p>0.05) for samples enriched by REO.
 
The rosemary essential oil decreased lipid oxidation in the rapeseed oil compared to the control sample by 23.9 % (p<0.05) at 8 days and by 9.4 % (p>0.05) at 40 days. Addition of rosemary essential oil to olive oil increased significantly TBARS values only at 8 days of the storage. The reduction of the lipid oxidation was the highest at 40 days as compared to the start of the study. Rosemary essential oil added to rice oil induced the increase of TBARS level at 8 days (by 23.7 %, p<0.05) and 0 days (by 64.4 %, p<0.05), respectively. Lipid peroxidation retarding capacity of rosemary essential oil was found obviously promising. These antioxidant activities seem to be attributed to antioxidant compounds present in the rosemary essential oil.
 
Consequently, rosemary essential oil could be successfully added to various plant oils as a natural antioxidant source for feeding animals. The knowledge of extent and mode of inhibition of specific compounds, which are present in plant essential oils, may contribute to the successful application of such natural preservatives in foods since certain combinations of second metabolites provide a high antioxidant activity.

References

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25. Zar, J. H. (1999). Biostatistical Analysis, 4th ed., Prentice Hall Inc., New Jersey.

 

 

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