The yield and quality of milk on the farms using twice a day conventional milking in comparison with the farms using three times a day conventional and automatic milking systems
The objective of this study was to compare milk parameters during lactation months on farms using automatic (ALS) and conventional milking systems (PLS). The highest milk yield per cow (30.1 kg) was obtained on 3x PLS farms, whereas cows on 2x PLS farms produced 7.7 kg less milk. Milk yield of the c...
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| Format: | Article |
| Language: | English |
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Estonian Academic Agricultural Society
2013-12-01
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| Series: | Agraarteadus |
| Subjects: | |
| Online Access: |
http://agrt.emu.ee/pdf/2013_2_kiiman.pdf
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| _version_ | 1811325153471102976 |
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| author | Heli Kiiman Alo Tänavots Tanel Kaart |
| author_facet | Heli Kiiman Alo Tänavots Tanel Kaart |
| author_sort | Heli Kiiman |
| collection | DOAJ |
| description | The objective of this study was to compare milk parameters during lactation months on farms using automatic (ALS) and conventional milking systems (PLS). The highest milk yield per cow (30.1 kg) was obtained on 3x PLS farms, whereas cows on 2x PLS farms produced 7.7 kg less milk. Milk yield of the cows on ALS farms (24.8 to 26.3 kg) was between that of 2x PLS 2 and 3x PLS farms. On Robot 1 ALS farms the milk yield of cows was by 1.5 kg higher compared to Robot 3 ALS farms (24.8 kg). Milk yield increased until the second month of lactation on all the farms, and decreased subsequently. The difference in milk yield between 2x and 3x PLS farms increased until the third month of lactation, whereas it was by 8.8 to 9.9 kg higher in 3x PLS until the ninth month of lactation, and decreased subsequently (8.6 to 9.4 kg). All ALS farms showed more uniform results. Higher milk yield resulted in lower milk fat (r = –0.36) and milk protein (r = –0.42) content. The highest somatic cell score (SRS) (3.81) was found in the milk obtained from 2x PLS, whereas increased milking frequency decreased SRS by 0.48. Milk SRS was the lowest (2.88) on Robot 1 ALS farms, and the highest on Robot 2 (3.66) ALS farms. Irregular milking on ALS farms did not cause higher SRS of milk, compared to PLS. Increase in milking frequency resulted in higher milk yield and lower SRS, milk fat and milk protein content, whereas ALS and PLS farms showed similar trends. Decrease in milk yield was linear during lactation. |
| first_indexed | 2024-04-13T14:28:05Z |
| format | Article |
| id | doaj.art-100c8fa8cd4f4277b1f763a059ff5708 |
| institution | Directory Open Access Journal |
| issn | 1024-0845 2228-4893 |
| language | English |
| last_indexed | 2024-04-13T14:28:05Z |
| publishDate | 2013-12-01 |
| publisher | Estonian Academic Agricultural Society |
| record_format | Article |
| series | Agraarteadus |
| spelling | doaj.art-100c8fa8cd4f4277b1f763a059ff57082022-12-22T02:43:16ZengEstonian Academic Agricultural SocietyAgraarteadus1024-08452228-48932013-12-012425564The yield and quality of milk on the farms using twice a day conventional milking in comparison with the farms using three times a day conventional and automatic milking systemsHeli Kiiman0Alo Tänavots1Tanel Kaart2 Estonian University of Life Science, Institute of Veterinary Medicine and Animal Sciences, F.R. Kreutzwaldi 1, 51014 Tartu, Estonia Estonian University of Life Science, Institute of Veterinary Medicine and Animal Sciences, F.R. Kreutzwaldi 1, 51014 Tartu, Estonia Estonian University of Life Science, Institute of Veterinary Medicine and Animal Sciences, F.R. Kreutzwaldi 1, 51014 Tartu, Estonia The objective of this study was to compare milk parameters during lactation months on farms using automatic (ALS) and conventional milking systems (PLS). The highest milk yield per cow (30.1 kg) was obtained on 3x PLS farms, whereas cows on 2x PLS farms produced 7.7 kg less milk. Milk yield of the cows on ALS farms (24.8 to 26.3 kg) was between that of 2x PLS 2 and 3x PLS farms. On Robot 1 ALS farms the milk yield of cows was by 1.5 kg higher compared to Robot 3 ALS farms (24.8 kg). Milk yield increased until the second month of lactation on all the farms, and decreased subsequently. The difference in milk yield between 2x and 3x PLS farms increased until the third month of lactation, whereas it was by 8.8 to 9.9 kg higher in 3x PLS until the ninth month of lactation, and decreased subsequently (8.6 to 9.4 kg). All ALS farms showed more uniform results. Higher milk yield resulted in lower milk fat (r = –0.36) and milk protein (r = –0.42) content. The highest somatic cell score (SRS) (3.81) was found in the milk obtained from 2x PLS, whereas increased milking frequency decreased SRS by 0.48. Milk SRS was the lowest (2.88) on Robot 1 ALS farms, and the highest on Robot 2 (3.66) ALS farms. Irregular milking on ALS farms did not cause higher SRS of milk, compared to PLS. Increase in milking frequency resulted in higher milk yield and lower SRS, milk fat and milk protein content, whereas ALS and PLS farms showed similar trends. Decrease in milk yield was linear during lactation. http://agrt.emu.ee/pdf/2013_2_kiiman.pdf automatic milking systemconventional milking systemdairy cattlemilk fat contentmilk protein contentsomatic cell score |
| spellingShingle | Heli Kiiman Alo Tänavots Tanel Kaart The yield and quality of milk on the farms using twice a day conventional milking in comparison with the farms using three times a day conventional and automatic milking systems Agraarteadus automatic milking system conventional milking system dairy cattle milk fat content milk protein content somatic cell score |
| title | The yield and quality of milk on the farms using twice a day conventional milking in comparison with the farms using three times a day conventional and automatic milking systems |
| title_full | The yield and quality of milk on the farms using twice a day conventional milking in comparison with the farms using three times a day conventional and automatic milking systems |
| title_fullStr | The yield and quality of milk on the farms using twice a day conventional milking in comparison with the farms using three times a day conventional and automatic milking systems |
| title_full_unstemmed | The yield and quality of milk on the farms using twice a day conventional milking in comparison with the farms using three times a day conventional and automatic milking systems |
| title_short | The yield and quality of milk on the farms using twice a day conventional milking in comparison with the farms using three times a day conventional and automatic milking systems |
| title_sort | yield and quality of milk on the farms using twice a day conventional milking in comparison with the farms using three times a day conventional and automatic milking systems |
| topic | automatic milking system conventional milking system dairy cattle milk fat content milk protein content somatic cell score |
| url |
http://agrt.emu.ee/pdf/2013_2_kiiman.pdf
|
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