Genetic resources of sheep in Ukraine

Vdovychenko, Ju.; Zharuk, P.

doi:10.31073/agrovisnyk201905-05

Visnyk agrarnoi nauky

2019

DOI: 10.31073/agrovisnyk201905-05

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Genetic resources of sheep in Ukraine

Ju. Vdovychenko¹,

P. Zharuk²

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Cited by 6 publications

(4 citation statements)

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“…В Україні розводять близько 20-ти унікальних порід і типів овець різного напряму продуктивності, які пристосовані до її природно-кліматичних умов. Переважна частка поголів'я овець належить до порід комбінованого напряму продуктивності -м'ясо-вовнового та вовново-м'ясного (Polska et al, 2015;Avercheva 2020;Vdovychenko et al, 2019).…”

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“…В даний час в Чернівецькій області розводять декілька порід овець, а саме буковинський тип асканійської м'ясо-вовнової, буковинський тип асканійської каракульської та українську гірськокарпатську породи. Тварини кожної з цих порід мають загальні та індивідуальні особливості при їх розведенні в різних природно-кліматичних зонах (Polska, 2020;Vdovychenko et al, 2019).…”

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“…Виробництво м'яса, вовни та іншої продукції вівчарства в значній мірі визначається показниками відтворення стада та збереження одержаного приплоду. Висока плодючість маток і вирощування молодняку є позитивним для підвищення ефективності селекції (Lesyk et al, 2020;Papakina, 2019;Kramarenko et al, 2020;Vdovychenko et al, 2019;Sarana et al, 2021).…”

unclassified

“…Відтворювальна здатність вівцематок в значній мірі обумовлена генотипом, їх вгодованістю, а також забезпеченістю зеленими кормами, які стимулюють активність і овуляцію яйцеклітини (Nezhlukchenko et al, 2021;Vdovychenko et al, 2019;Polska et al, 2019).…”

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Productivity Indicators of Bukovinian Type Ewes of Ascanian Meat-Wool Breed With Cross-Bred Wool in Condition of Bukovina

Lesyk,

Pohyvka,

Makoviychuk

2023

Anim. Breed. and Genet.

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Objective. Presentation of indicators Bukovinian type ewes of Ascanian meat-wool breed with cross-bred wool are given. As a result of research, it was established, that the animals are of a strong constitution, well adapted to conditions of Bukovinian humid climate. Ewes with high reproductive capacity: fertilization made 93.5%, multiple fertility – 131.5, yield of lambs per 100 ewes – 124 heads, with their high viability. The lambs are born of strong constitution, large enough, with high live weight. Live weight at birth is influenced by the sex of the animal. It is established, that the rams live weight is higher than that of ewe-lambs by 7.8%. Ewes have high milk productivity. From a single ewe for the milking period (137 days) 116.6 kg of milk was obtained, with average daily milk yield 0.883 kg, from which 25 kg of solid cottage cheese (brynza) was produced. In gross income, a part of sheep milk products makes about 60%, meat in live mass – 45%, when that of wool – only 3.0%. Conclusions. As the research result, we established, that the Bukovinian type sheep of Ascanian meat-wool breed with cross-bred wool have high indicators of a reproductive capacity and of a combined productivity. However, further Bukovinian type improvement and the increase of milk, meat, and wool productivity indicators requires effective selection methods. The research methods: zootechnical, economic, and biometric.

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Productivity Indicators of Bukovinian Type Ewes of Ascanian Meat-Wool Breed With Cross-Bred Wool in Condition of Bukovina

Lesyk,

Pohyvka,

Makoviychuk

2023

Anim. Breed. and Genet.

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Protective properties of the fleece of Taurian ewesof the Askanian fine fleece breed depending on the breeding differentiation rank

Tyrunskiy,

Bogdanova,

Lyutskanov

2023

Animal Science and Food Technology

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The study of factors affecting the humidity and contamination of the outer and inner zones of the staple, which further affects the yield of pure wool and its technological properties, is one of the current problems of fine-fleeced sheep breeding. Purpose of the study – evaluate the protective properties of wool fleece depending on the rank of breeding differentiation of sheep. The determination of ranks is based on the regularities of the normal distribution of animals in the population and herd reproduction indicators. 10 ranks were used. The paper presents the results of a laboratory study of the content of mineral impurities and the degree of contamination of the staple. Sheep were divided into 10 ranks of breeding differentiation. The regularities of the normal distribution of animals in the population are considered. The obtained data indicate that the variety of sheep in terms of the content of mineral impurities in wool is very large. The coefficient of variation is 35% with a variation in the ranks of breeding differentiation from 13.7 to 38.4%. With an increase in the group of the total value of sheep for breeding purposes, the value of the coefficient of variation decreases (rs=-0.871±0.245). With an increase in the ranks of breeding differentiation, the average absolute indicators of contamination of the outer zone of the staple tend to increase (rs = +0.257 ± 0.483), and the relative values decrease (rs =-0.600 ± 0.400). The average absolute contamination rate of the inner zone of the staple is 3.02 cm with a range of ranks from 2.83 to 3.29 cm. According to the relative degree of contamination, these indicators are 32.5% and from 31.0 to 35.2%, respectively. With an increase in the breeding differentiation rank of sheep, the absolute indicators of contamination of the length of the inner zone of the staple increase (rs = +0.600 ± 0.400), and relative values tend to decrease (rs =-0.486 ± 0.437). The individual variety of ewes in terms of the degree of contamination of the inner zone of the staple is quite high. The coefficients of variation for absolute and relative indicators of this feature are 28.5 and 30.4%, respectively. The value of the coefficients of variation decreases slightly with an increase in the ranks of breeding purposes of animals. The rank correlation is -0.371 ± 0.464 in absolute terms and -0.543 ± 0.420 in relative terms. Breeding differentials of the leading groups of ewes are low. Using this rank technique allows controlling the system of sheep valuation, supplementing it with the value of breeding differentials at the final stages of analysis and selection; in production conditions allows forming technological groups of sheep to produce outstanding ram breeders

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The yield of washed fiber and performance indicators in young rams of the taurian type askanian fine fleece breed

Korbych¹

2021

Naukovì dopovìdì Nacìonalʹnogo unìversitetu bìoresursìv ì priro

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Under market conditions, the increase in wool and lamb production should not only increase the livestock number, but also increase its productivity. The significant reserve is also to improve the quality of raw materials produced. The aim of the research was to identify the features of wool and meat productivity in young rams of the Taurian type Askanian fine fleece breed the taking into account an in-depth assessment of the washed fiber yield and subsequent use of the obtained data in the selection-breeding work with sheep. The young rams of the Taurian type Askanian fine fleece breed were used for research. The formed groups were characterized by low, medium and high yield of washed fiber. The results of the studies showed an advantage in all research parameters in young rams with an average yield of washed fiber. Therefore, it is proposed to direct the selection-breeding work to improve live weight and physical and mechanical properties of wool in young rams with high yields of washed fiber (more than 60.1%), which will allow to obtain more profits not only from the wool sale but from the sale of mutton, and to reject lambs with a low washed fiber yield to prevent the transmission of this trait to their offspring.

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Genetic resources of sheep in Ukraine

Cited by 6 publications

References 0 publications

Productivity Indicators of Bukovinian Type Ewes of Ascanian Meat-Wool Breed With Cross-Bred Wool in Condition of Bukovina

Productivity Indicators of Bukovinian Type Ewes of Ascanian Meat-Wool Breed With Cross-Bred Wool in Condition of Bukovina

Protective properties of the fleece of Taurian ewesof the Askanian fine fleece breed depending on the breeding differentiation rank

The yield of washed fiber and performance indicators in young rams of the taurian type askanian fine fleece breed

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