Peculiarities of Development of Ukrainian Repair Heifers Red-and-White and Black-and-White Dairy Breeds in Farms of Sumy Region

Хмельничий, С. Л.; Karpenko, B.; Bardash, Dmitryi

doi:10.32845/bsnau.lvst.2020.2.3

Cited by 4 publications

(5 citation statements)

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“…About the genetic component in the overall phenotypic variability of the traits of duration of life and productive longevity was also reported by other Ukrainian scientists [7,16,20,24,26,27].…”

Section: Sumy National Agrarian Universitysupporting

confidence: 74%

Linear type traits that characterize body development as the predictors of lifetime of Ukrainian Black-and-White dairy and Holstein cows

Khmelnychyi,

Samokhina,

Khmelnychyi

et al. 2023

Tehnologìâ virobnictva ì pererobki produktìv tvarinnictva

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The researches were conducted in the aspect of studying the problem of dairy cows lifetime depending on the linear traits assessment of the conformation type. By the linear classification method were estimated firstborn cows of the Ukrainian Black-and-White dairy (UBWD) and Holstein (H) breeds. Descriptive traits of the conformation that characterize the overall body structure were studied: chest width, body depth, angularity, body condition, rear width and position. According to the research results, the relative variability of the descriptive type traits assessment with cow's lifetime was determined. The relative variability of chest width and cow's lifetime was curvilinear. Cows for chest width assessment of 4–7 score had a higher lifespan with a variability of 2704–2844 (UBWD) and 2688–2789 (H) days. The highest lifetime was in animals with an assessment for body depth development of 6-9 score with an unreliable predominance of Ukrainian Black-and-White dairy breed cows, with the highest grades of both breeds 2824 (UBWD) and 2802 (H) days with an assessment of 9 score. Animals with an optimal angularity estimation of 5 score differed, lived the longest – 2842 (UBWD) and 2828 (H) days, while with increasing and decreasing score for this trait, the number of lifetime days of cows declined. According to the rump width assessment, lifespan was highest in cows with a 9 score – 2766 days (UBWD) and 2832 days (H). Cows of UBWD with the highest assessment for this body part development of 9 score were used on 592 (P <0.001), and Holstein on 708 (P <0.001) days longer compared to animals with 1 score. The maximum lifetime of animals with an average assessment for body condition of 5 score was 2842 (UBWD) and 2774 (H) days. Cows with body condition score below average lived and were used in the herd much longer than with a higher one. The degree of relationship variability between the assessment of these traits and the lifetime of animals depended on the specific body part. Key words: Ukrainian Black-and-White dairy breed, Holstein, linear type traits, lifetime.

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Section: Sumy National Agrarian Universitysupporting

confidence: 74%

Linear type traits that characterize body development as the predictors of lifetime of Ukrainian Black-and-White dairy and Holstein cows

Khmelnychyi,

Samokhina,

Khmelnychyi

et al. 2023

Tehnologìâ virobnictva ì pererobki produktìv tvarinnictva

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“…Моніторинг селекційних ознак дає можливість визначення оптимальних та середніх по популяціях значень альтернативних ознак селекційного процесу (Polupan et al, 2022). В дослідженнях українських (Bashchenko et al, 2022;Hyl et al, 2019;Dankiv et al, 2020;Papakina et al, 2020;Polupan, 2013;Polupan, 2016;Stavetska et al, 2016;Fedorovych et al, 2021;Khmelnychyi et al, 2022;Kohut et al, 2022;Kuziv et al, 2021;Ladyka et al, 2021) і вчених інших країн світу (Tilki et al, 2005;Vohra et al, 2015;Worogo et al, 2021) багато уваги приділено вивченню екстер'єрноконституціональних закономірностей формування господарськи корисних ознак молочної худоби залежно від впливу генетичних чинників (Shuliar et al, 2020;Djedovi´c et al, 2023;Janković et al, 2021;Touchberry, 1951), породи (Karamfylov , 2020), походження (Karatieieva et al, 2020;Kohut, 2020;Kochuk-Yashchenko et al, 2021;Khmelnychyi et al, 2021;Traoré et al, 2016), методів розведення (Verbych et al, 2021Nascimento et al, 2023), пігментації волосяного покриву (Sliusar, 2017) тощо. Подальше вивчення закономірностей формування екстер'єру вітчизняної молочної худоби лишається і наразі актуальним, адже знання особливостей росту та розвитку організму тварин дає можливість керувати ними свідомо, спрямовувати їх у найбільш корисний для виробництва бік.…”

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The Dynamics of First-Calf Heifers’ Exterior Traits Within Different Years of Evaluation, Age and the Season of Birth and Calving

Polupan,

Melnik,

Bazyshyna

et al. 2023

Anim. Breed. and Genet.

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In the herd of Ukrainian Red Dairy breed of “Rossiya” breeding farm on 2302 cows, the dynamics of first-calf heifers’ exterior of different years of evaluation, age and season of birth and calving were studied. It was established, that the investigated paratypic factors of the season of birth and calving do not have significant influence (0.02…4.9%) on the formation of the exterior of first-calf heifers. More significant (0.3…11.4%) was the influence of the age of exterior evaluation. And the most significant amongst paratypic factors was the influence of the year of evaluation of the cows (5.7…57.5%), which can be explained by the simultaneous influence of as the improvement of the level of breeding and feeding of animals, so the genetic factors of “blood share” of improving breed and parentage of different breeding (genetic) value. The chronological dynamics of the measurements of first-calf heifers led to the adequate changes in the proportions of the body in the direction of increasing of leg length, stoutness and eirisomia with simultaneous curvilinear decrease of conformation indices of stretching, rump-thoratic, thoratic, boneness, massiveness and over-growth. Determined changes in the proportions of the body structure fit the forming of more expressed milk type. Correlation analysis established, that the age of evaluation has a direct significant connection with the depth and width of the chest, indirect length of body and rumps, width of rump in hooks and pelvic width, heart girth. The age of the first calving is reliably directly proportional to the depth and width of the chest and the width at the withers and inversely – to the height at the withers and rump, pelvic width and the girth of the wrist. Less significant, but sometimes reliable, was the correlation between the investigated features of the exterior of first-calf heifers and the intensity of their growth in different periods of rearing. A higher relative variability of most exterior traits was found with the average daily weight gain of heifers during the period of intensive puberty in 6–12 months, a slightly lower – in the first and third half-year of the postnatal ontogenesis. The increase in “blood share” of cows of the Holstein breed shows the combined effect of improvement (formation of the milk type) of the exterior with an increase in the relative share of non-pigmented areas of the skin.

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“…Генетично запрограмована продуктивність може бути реалізована лише за сприятливих умов вирощування, догляду та використання тварин, особливо у період росту і розвитку організму. Щоб виростити корову, яка б повною мірою виявляла генетично закладені можливості, необхідно з перших днів вирощування створювати для телят оптимальні умови годівлі та утримання, що забезпечить нормальний ріст і розвиток тварин (Kuziv, 2013;Razanova, 2019;Skoromna et al, 2020;Khmelnychyi, 2012;Yaremchuk et al, 2019).…”

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“…В цьому аспекті найпершим методом морфологічних досліджень розвитку тварин передбачають облік їхньої живої маси. Результатами цих спостережень є показники росту тварин, які характеризують інтенсивність обмінних процесів, що відбуваються в організмі (Burkat et al, 1999;Khmelnychyi et al, 2019).…”

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Characteristics of the Growth of Heiffs of Different Lines of the Bukoviny Factory Type of the Ukrainian Red-and-White Dairy Breed

Liubynskyi

2023

Anim. Breed. and Genet.

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The study was carried out in the herd of the Myrne breeding farm of the Chernivtsi region on animals of the Bukovyna factory type of the Ukrainian Red-and-White dairy breed. It was established that heifers of the Bukovin factory type of the Ukrainian Red-and-White dairy breed were characterized by good indicators of live weight. In newborn animals, this indicator was 31.9 kg, by the age of 6 months it increased by 5.4 times or by 134.5 kg, by the age of 12 months – by 9.7 times or by 266.9 kg and by 18 – one month old – 13 times or by 369.8 kg. The average age of the first insemination in the herd was 15.5 months, and the live weight of animals at this age was 365.2 kg. The coefficients of variation of live weight, depending on age, were in the range of 8.9–17.1%. This indicator was the lowest in 18-month-old animals. The variability of the multiplicity of increase in live weight was within 18.4–21.3%. It should be noted that the highest coefficients of variation of the multiplicity of live weight increase (21.3%) were observed in 12-month-old heifers. The highest average daily gains were observed in heifers from 3 to 6 months of age and amounted to 825 g, with a variability of 26.8%. Later, with increasing age of the animals, this indicator decreased and in the age period from 15 to 18 months it was 550 g with a variability of the sign of 56.2%. In general, from birth to 18 months of age, the average daily weight gain of heifers was 684.1 g. A comparative analysis of the dynamics of the live weight of heifers of different lines showed that the heifers of the Starbuck line were better in terms of live weight at birth (34.0 kg) compared to their peers other lines During the 18-month growing period, repair heifers of the Starbuck line were significantly better compared to peers of other lines. At the final stage of cultivation, with an average live weight of 417 kg, they exceeded their peers by 8–64 kg. The average daily gain of live weight in the period from birth to 18 months of age was the highest in heifers of the Starbuck line at an average of 710 g, while in their peers of other lines it was lower by 21–112 g. With the creation of proper growing conditions, heifers are capable of high growth intensity and high milk productivity in the following stages of the technological production cycle of obtaining high-quality products.

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Peculiarities of Development of Ukrainian Repair Heifers Red-and-White and Black-and-White Dairy Breeds in Farms of Sumy Region

Cited by 4 publications

References 0 publications

Linear type traits that characterize body development as the predictors of lifetime of Ukrainian Black-and-White dairy and Holstein cows

Linear type traits that characterize body development as the predictors of lifetime of Ukrainian Black-and-White dairy and Holstein cows

The Dynamics of First-Calf Heifers’ Exterior Traits Within Different Years of Evaluation, Age and the Season of Birth and Calving

Characteristics of the Growth of Heiffs of Different Lines of the Bukoviny Factory Type of the Ukrainian Red-and-White Dairy Breed

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