EFFECT OF HOLSTEIN-FRIESIAN HEIFERS’ GROWTH AND DEVELOPMENT ON MILK PRODUCTION IN THE FIRST LACTATION
The aim of this study was to evaluate growth and development of heifers from birth to 24 months of age and the effects on milk yield in first lactation. Body weight and height at withers of female calves (N=4167) were taken at monthly intervals. At 3 months of age the average height at withers of ca...
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| Format: | Article |
| Language: | English |
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Agroprint Timisoara
2023-11-01
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| Series: | Scientific Papers Animal Science and Biotechnologies |
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| Online Access: | https://spasb.ro/index.php/public_html/article/view/2146 |
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| author | A. KOVÁCS E. BÁDER Z. GERGÁCZ J. BARTYIK L. PONGRÁCZ E. SZÜCS |
| author_facet | A. KOVÁCS E. BÁDER Z. GERGÁCZ J. BARTYIK L. PONGRÁCZ E. SZÜCS |
| author_sort | A. KOVÁCS |
| collection | DOAJ |
| description | The aim of this study was to evaluate growth and development of heifers from birth
to 24 months of age and the effects on milk yield in first lactation. Body weight and
height at withers of female calves (N=4167) were taken at monthly intervals. At 3
months of age the average height at withers of calves, live weight and wither index
was 80.9 kg, 86.1 cm and 1.0, respectively. Figures taken at 6 months of age the
height at withers, live weight and wither index increased by 17.6 cm, 92.3 kg and
1.7. Respective mean values at 9, 16 and 24 months of age were 250.0, 413.9 and
603.7 kg; 116.0, 128.5 and 139.7 cm; and 2.2, 3.2 and 4.3. The heifers with the ideal
or lower ones at 3, 9 and 16 month of age produced higher milk yields in the first
lactation milk yield by 200-500 kg as compared with the highest index category.
Higher index values at 6 months of age resulted in increase of milk yields in the first
the lactation. At 24 months of age first lactation milk yields were similar in all indexcategories (8647.2, 8703.5 and 8717.5 kg, respectively). No variations neither in
butterfat (3.6%) nor milk protein (3.1%) content were present within the index
categories at any ages. In conclusion, findings reveal that the withers height index
seems to be an appropriate tool in monitoring of growth and development of
replacement heifers for taking corrective actions in feeding and breeding practice. |
| first_indexed | 2024-04-24T13:43:13Z |
| format | Article |
| id | doaj.art-c15d1ce97fdb4d1d86ece0fced6d8056 |
| institution | Directory Open Access Journal |
| issn | 1841-9364 2344-4576 |
| language | English |
| last_indexed | 2024-04-24T13:43:13Z |
| publishDate | 2023-11-01 |
| publisher | Agroprint Timisoara |
| record_format | Article |
| series | Scientific Papers Animal Science and Biotechnologies |
| spelling | doaj.art-c15d1ce97fdb4d1d86ece0fced6d80562024-04-04T07:28:45ZengAgroprint TimisoaraScientific Papers Animal Science and Biotechnologies1841-93642344-45762023-11-014124514512146EFFECT OF HOLSTEIN-FRIESIAN HEIFERS’ GROWTH AND DEVELOPMENT ON MILK PRODUCTION IN THE FIRST LACTATIONA. KOVÁCS0E. BÁDER1Z. GERGÁCZ2J. BARTYIK3L. PONGRÁCZ4E. SZÜCS5Faculty for Agricultural and Food Science, University of West Hungary, Mosonmagyaróvár Faculty for Agricultural and Food Science, University of West Hungary, MosonmagyaróvárFaculty for Agricultural and Food Science, University of West Hungary, MosonmagyaróvárEnying Agrár PLC, Kiscséripuszta, Hungary Faculty for Agricultural and Food Science, University of West Hungary, MosonmagyaróvárFaculty for Agricultural and Food Science, University of West Hungary, MosonmagyaróvárThe aim of this study was to evaluate growth and development of heifers from birth to 24 months of age and the effects on milk yield in first lactation. Body weight and height at withers of female calves (N=4167) were taken at monthly intervals. At 3 months of age the average height at withers of calves, live weight and wither index was 80.9 kg, 86.1 cm and 1.0, respectively. Figures taken at 6 months of age the height at withers, live weight and wither index increased by 17.6 cm, 92.3 kg and 1.7. Respective mean values at 9, 16 and 24 months of age were 250.0, 413.9 and 603.7 kg; 116.0, 128.5 and 139.7 cm; and 2.2, 3.2 and 4.3. The heifers with the ideal or lower ones at 3, 9 and 16 month of age produced higher milk yields in the first lactation milk yield by 200-500 kg as compared with the highest index category. Higher index values at 6 months of age resulted in increase of milk yields in the first the lactation. At 24 months of age first lactation milk yields were similar in all indexcategories (8647.2, 8703.5 and 8717.5 kg, respectively). No variations neither in butterfat (3.6%) nor milk protein (3.1%) content were present within the index categories at any ages. In conclusion, findings reveal that the withers height index seems to be an appropriate tool in monitoring of growth and development of replacement heifers for taking corrective actions in feeding and breeding practice.https://spasb.ro/index.php/public_html/article/view/2146holstein-friesianheifergrowthmilk yieldheight at withersbody weightwithers height index |
| spellingShingle | A. KOVÁCS E. BÁDER Z. GERGÁCZ J. BARTYIK L. PONGRÁCZ E. SZÜCS EFFECT OF HOLSTEIN-FRIESIAN HEIFERS’ GROWTH AND DEVELOPMENT ON MILK PRODUCTION IN THE FIRST LACTATION Scientific Papers Animal Science and Biotechnologies holstein-friesian heifer growth milk yield height at withers body weight withers height index |
| title | EFFECT OF HOLSTEIN-FRIESIAN HEIFERS’ GROWTH AND DEVELOPMENT ON MILK PRODUCTION IN THE FIRST LACTATION |
| title_full | EFFECT OF HOLSTEIN-FRIESIAN HEIFERS’ GROWTH AND DEVELOPMENT ON MILK PRODUCTION IN THE FIRST LACTATION |
| title_fullStr | EFFECT OF HOLSTEIN-FRIESIAN HEIFERS’ GROWTH AND DEVELOPMENT ON MILK PRODUCTION IN THE FIRST LACTATION |
| title_full_unstemmed | EFFECT OF HOLSTEIN-FRIESIAN HEIFERS’ GROWTH AND DEVELOPMENT ON MILK PRODUCTION IN THE FIRST LACTATION |
| title_short | EFFECT OF HOLSTEIN-FRIESIAN HEIFERS’ GROWTH AND DEVELOPMENT ON MILK PRODUCTION IN THE FIRST LACTATION |
| title_sort | effect of holstein friesian heifers growth and development on milk production in the first lactation |
| topic | holstein-friesian heifer growth milk yield height at withers body weight withers height index |
| url | https://spasb.ro/index.php/public_html/article/view/2146 |
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