THE EFFECT OF SUPPLEMENTAL LIGHT ON MILK PRODUCTION IN HOLSTEIN DAIRY COWS
20 multiparous cows were utilized to investigate effect of supplemental light on milk production. Cows were randomly assigned to one of two treatments (n=10): a) 10- 13 hours of light and 14-11 hours of darkness/d natural light -NL group; b) 17 hours of light (natural light + supplemental light) -SL...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Agroprint Timisoara
2023-10-01
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| Series: | Scientific Papers Animal Science and Biotechnologies |
| Subjects: | |
| Online Access: | https://spasb.ro/index.php/public_html/article/view/1503 |
| _version_ | 1797215793554915328 |
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| author | C. GAVAN V. MOTORGA |
| author_facet | C. GAVAN V. MOTORGA |
| author_sort | C. GAVAN |
| collection | DOAJ |
| description | 20 multiparous cows were utilized to investigate effect of supplemental light on milk
production. Cows were randomly assigned to one of two treatments (n=10): a) 10-
13 hours of light and 14-11 hours of darkness/d natural light -NL group; b) 17
hours of light (natural light + supplemental light) -SL group. Supplemental lighting
of 350 lx at eye level was provided by fluorescent lamps, controlled by an automatic
timer. Multiparous cows in SL group produced more fat corected milk (FMC) than
multiparous cows in NL group. The efficiency of production in dairy cows can be
enhanced by the photoperiod manipulation and thus provide another management
tool for dairy producers to enhance productivity. |
| first_indexed | 2024-04-24T11:35:43Z |
| format | Article |
| id | doaj.art-e849f5709f8e47cf86ed66b22c8c08b9 |
| institution | Directory Open Access Journal |
| issn | 1841-9364 2344-4576 |
| language | English |
| last_indexed | 2024-04-24T11:35:43Z |
| publishDate | 2023-10-01 |
| publisher | Agroprint Timisoara |
| record_format | Article |
| series | Scientific Papers Animal Science and Biotechnologies |
| spelling | doaj.art-e849f5709f8e47cf86ed66b22c8c08b92024-04-10T05:28:01ZengAgroprint TimisoaraScientific Papers Animal Science and Biotechnologies1841-93642344-45762023-10-014222612611503THE EFFECT OF SUPPLEMENTAL LIGHT ON MILK PRODUCTION IN HOLSTEIN DAIRY COWSC. GAVAN0V. MOTORGA1Agricultural Research & Development Station SimnicAgricultural Research & Development Station Simnic20 multiparous cows were utilized to investigate effect of supplemental light on milk production. Cows were randomly assigned to one of two treatments (n=10): a) 10- 13 hours of light and 14-11 hours of darkness/d natural light -NL group; b) 17 hours of light (natural light + supplemental light) -SL group. Supplemental lighting of 350 lx at eye level was provided by fluorescent lamps, controlled by an automatic timer. Multiparous cows in SL group produced more fat corected milk (FMC) than multiparous cows in NL group. The efficiency of production in dairy cows can be enhanced by the photoperiod manipulation and thus provide another management tool for dairy producers to enhance productivity.https://spasb.ro/index.php/public_html/article/view/1503photoperiodmilk yieldsupplemental light |
| spellingShingle | C. GAVAN V. MOTORGA THE EFFECT OF SUPPLEMENTAL LIGHT ON MILK PRODUCTION IN HOLSTEIN DAIRY COWS Scientific Papers Animal Science and Biotechnologies photoperiod milk yield supplemental light |
| title | THE EFFECT OF SUPPLEMENTAL LIGHT ON MILK PRODUCTION IN HOLSTEIN DAIRY COWS |
| title_full | THE EFFECT OF SUPPLEMENTAL LIGHT ON MILK PRODUCTION IN HOLSTEIN DAIRY COWS |
| title_fullStr | THE EFFECT OF SUPPLEMENTAL LIGHT ON MILK PRODUCTION IN HOLSTEIN DAIRY COWS |
| title_full_unstemmed | THE EFFECT OF SUPPLEMENTAL LIGHT ON MILK PRODUCTION IN HOLSTEIN DAIRY COWS |
| title_short | THE EFFECT OF SUPPLEMENTAL LIGHT ON MILK PRODUCTION IN HOLSTEIN DAIRY COWS |
| title_sort | effect of supplemental light on milk production in holstein dairy cows |
| topic | photoperiod milk yield supplemental light |
| url | https://spasb.ro/index.php/public_html/article/view/1503 |
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