RESEARCHES ON THE RELATIONSHIP BETWEEN LINEAR TYPE TRAITS AND PRODUCTIVE LONGEVITY OF COWS OF UKRAINIAN BROWN DAIRY BREED
The phenotypic relations between type traits and longevity indices in cows of Ukrainian Brown dairy breed in the Sumy region of Ukraine were analyzed. Linear estimation was performed according to ICAR recommendations (2014). In this study 18 traits of type are considered. The average lifetime of cow...
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University of Agricultural Sciences and Veterinary Medicine, Bucharest
2022-01-01
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| Series: | Scientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development |
| Online Access: | https://managementjournal.usamv.ro/pdf/vol.22_1/Art36.pdf |
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| author | Leontii KHMELNYCHYI Serhii KHMELNYCHYI Victoria VECHORKA Evgeniya SAMOKHINA |
| author_facet | Leontii KHMELNYCHYI Serhii KHMELNYCHYI Victoria VECHORKA Evgeniya SAMOKHINA |
| author_sort | Leontii KHMELNYCHYI |
| collection | DOAJ |
| description | The phenotypic relations between type traits and longevity indices in cows of Ukrainian Brown dairy breed in the Sumy region of Ukraine were analyzed. Linear estimation was performed according to ICAR recommendations (2014). In this study 18 traits of type are considered. The average lifetime of cows was 6.7 years, which corresponding to an average productive use of 4.67 years. Longevity yield for cows amounted to an average of 21,517 kg of milk, or 8.8 kg per one day of life, or 13.3 kg per day of productive use. Phenotypic correlations were between final assessment and lifetime (r=0.321), longevity milk yield (r=0.398) and milk fat (r=0.369). In general, phenotypic correlations between linear traits of type and longevity traits varied from -0.192 to 0.422. Sufficient levels of correlations indicated that indirect selection on the basis of height (r=0.122-0.209), body depth (r=0.209- 0.268), angularity (r=0.318-0.422), rump width (r=0.226-362), front udder part attachment (r=0.275-0.396), rear udder part attachment (r=0.254-342), central ligament (r=0.245-371), udder depth (r=0.228-0.244) and body condition score (r=-0,192…-0,378) can lead to an effective improvement of cows longevity traits. |
| format | Article |
| id | doaj-art-abb63c9f67d149038f552ab1ba6f7ef1 |
| institution | OA Journals |
| issn | 2284-7995 2285-3952 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | University of Agricultural Sciences and Veterinary Medicine, Bucharest |
| record_format | Article |
| series | Scientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development |
| spelling | doaj-art-abb63c9f67d149038f552ab1ba6f7ef12025-08-20T02:06:50ZengUniversity of Agricultural Sciences and Veterinary Medicine, BucharestScientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development2284-79952285-39522022-01-012213033121155RESEARCHES ON THE RELATIONSHIP BETWEEN LINEAR TYPE TRAITS AND PRODUCTIVE LONGEVITY OF COWS OF UKRAINIAN BROWN DAIRY BREEDLeontii KHMELNYCHYISerhii KHMELNYCHYIVictoria VECHORKAEvgeniya SAMOKHINAThe phenotypic relations between type traits and longevity indices in cows of Ukrainian Brown dairy breed in the Sumy region of Ukraine were analyzed. Linear estimation was performed according to ICAR recommendations (2014). In this study 18 traits of type are considered. The average lifetime of cows was 6.7 years, which corresponding to an average productive use of 4.67 years. Longevity yield for cows amounted to an average of 21,517 kg of milk, or 8.8 kg per one day of life, or 13.3 kg per day of productive use. Phenotypic correlations were between final assessment and lifetime (r=0.321), longevity milk yield (r=0.398) and milk fat (r=0.369). In general, phenotypic correlations between linear traits of type and longevity traits varied from -0.192 to 0.422. Sufficient levels of correlations indicated that indirect selection on the basis of height (r=0.122-0.209), body depth (r=0.209- 0.268), angularity (r=0.318-0.422), rump width (r=0.226-362), front udder part attachment (r=0.275-0.396), rear udder part attachment (r=0.254-342), central ligament (r=0.245-371), udder depth (r=0.228-0.244) and body condition score (r=-0,192…-0,378) can lead to an effective improvement of cows longevity traits.https://managementjournal.usamv.ro/pdf/vol.22_1/Art36.pdf |
| spellingShingle | Leontii KHMELNYCHYI Serhii KHMELNYCHYI Victoria VECHORKA Evgeniya SAMOKHINA RESEARCHES ON THE RELATIONSHIP BETWEEN LINEAR TYPE TRAITS AND PRODUCTIVE LONGEVITY OF COWS OF UKRAINIAN BROWN DAIRY BREED Scientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development |
| title | RESEARCHES ON THE RELATIONSHIP BETWEEN LINEAR TYPE TRAITS AND PRODUCTIVE LONGEVITY OF COWS OF UKRAINIAN BROWN DAIRY BREED |
| title_full | RESEARCHES ON THE RELATIONSHIP BETWEEN LINEAR TYPE TRAITS AND PRODUCTIVE LONGEVITY OF COWS OF UKRAINIAN BROWN DAIRY BREED |
| title_fullStr | RESEARCHES ON THE RELATIONSHIP BETWEEN LINEAR TYPE TRAITS AND PRODUCTIVE LONGEVITY OF COWS OF UKRAINIAN BROWN DAIRY BREED |
| title_full_unstemmed | RESEARCHES ON THE RELATIONSHIP BETWEEN LINEAR TYPE TRAITS AND PRODUCTIVE LONGEVITY OF COWS OF UKRAINIAN BROWN DAIRY BREED |
| title_short | RESEARCHES ON THE RELATIONSHIP BETWEEN LINEAR TYPE TRAITS AND PRODUCTIVE LONGEVITY OF COWS OF UKRAINIAN BROWN DAIRY BREED |
| title_sort | researches on the relationship between linear type traits and productive longevity of cows of ukrainian brown dairy breed |
| url | https://managementjournal.usamv.ro/pdf/vol.22_1/Art36.pdf |
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