Changes in the relationship between blood plasma glucose concentration and milk production in Czech Pied cows in the course of the year
Groups of 20 to 23 dairy Czech Pied cows were observed monthly for the period of 12 months (12 test days). The cows in experimental groups were in their early lactation. The mean number of lactation was 2,8, the cows were on average 54.8 days after calving and the mean glucose concentration in blood...
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| Format: | Article |
| Language: | English |
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Mendel University Press
2004-01-01
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| Series: | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
| Subjects: | |
| Online Access: | https://acta.mendelu.cz/52/2/0097/ |
| _version_ | 1811308890948632576 |
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| author | Gustav Chládek Ladislav Máchal |
| author_facet | Gustav Chládek Ladislav Máchal |
| author_sort | Gustav Chládek |
| collection | DOAJ |
| description | Groups of 20 to 23 dairy Czech Pied cows were observed monthly for the period of 12 months (12 test days). The cows in experimental groups were in their early lactation. The mean number of lactation was 2,8, the cows were on average 54.8 days after calving and the mean glucose concentration in blood plasma was 3.93 mmol/l. During the first 100 days of lactation milk yield amounted to 2581 kg with 3.91% fat, 3.48% protein and 4.85% lactose.The coefficients of the correlation between blood plasma glucose and the observed milk production parameters calculated independently for each test day ranged as follows: -0.597 to 0.130 for number of lactation, -0.389 to 0.585 for days after calving, -0.462 to 0.361 for milk yield, -0.201 to 0.526 for milk fat content, -0.385 to 0.632 for milk protein content and -0.600 to 0.469 for milk lactose content. The calculated coefficients of the correlation between blood plasma glucose and milk production parameters did not reveal a clear tendency in the relationships. However, the graphic polynomial expression showed that glucose level had a positive relationship with days after calving and mainly positive relationship with milk protein content; glucose content had a negative relationship with milk yield and number of lactation and a mainly negative relationship with fat content and lactose content. |
| first_indexed | 2024-04-13T09:31:24Z |
| format | Article |
| id | doaj.art-ab3b74d30fc04c20a4381e411b609af1 |
| institution | Directory Open Access Journal |
| issn | 1211-8516 2464-8310 |
| language | English |
| last_indexed | 2024-04-13T09:31:24Z |
| publishDate | 2004-01-01 |
| publisher | Mendel University Press |
| record_format | Article |
| series | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
| spelling | doaj.art-ab3b74d30fc04c20a4381e411b609af12022-12-22T02:52:14ZengMendel University PressActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis1211-85162464-83102004-01-015229710410.11118/actaun200452020097Changes in the relationship between blood plasma glucose concentration and milk production in Czech Pied cows in the course of the yearGustav Chládek0Ladislav Máchal1Ústav chovu hospodářských zvířat, Mendelova zemědělská a lesnická univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republikaÚstav chovu hospodářských zvířat, Mendelova zemědělská a lesnická univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republikaGroups of 20 to 23 dairy Czech Pied cows were observed monthly for the period of 12 months (12 test days). The cows in experimental groups were in their early lactation. The mean number of lactation was 2,8, the cows were on average 54.8 days after calving and the mean glucose concentration in blood plasma was 3.93 mmol/l. During the first 100 days of lactation milk yield amounted to 2581 kg with 3.91% fat, 3.48% protein and 4.85% lactose.The coefficients of the correlation between blood plasma glucose and the observed milk production parameters calculated independently for each test day ranged as follows: -0.597 to 0.130 for number of lactation, -0.389 to 0.585 for days after calving, -0.462 to 0.361 for milk yield, -0.201 to 0.526 for milk fat content, -0.385 to 0.632 for milk protein content and -0.600 to 0.469 for milk lactose content. The calculated coefficients of the correlation between blood plasma glucose and milk production parameters did not reveal a clear tendency in the relationships. However, the graphic polynomial expression showed that glucose level had a positive relationship with days after calving and mainly positive relationship with milk protein content; glucose content had a negative relationship with milk yield and number of lactation and a mainly negative relationship with fat content and lactose content.https://acta.mendelu.cz/52/2/0097/Czech Piedcattlecowsmilkproteinfat |
| spellingShingle | Gustav Chládek Ladislav Máchal Changes in the relationship between blood plasma glucose concentration and milk production in Czech Pied cows in the course of the year Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis Czech Pied cattle cows milk protein fat |
| title | Changes in the relationship between blood plasma glucose concentration and milk production in Czech Pied cows in the course of the year |
| title_full | Changes in the relationship between blood plasma glucose concentration and milk production in Czech Pied cows in the course of the year |
| title_fullStr | Changes in the relationship between blood plasma glucose concentration and milk production in Czech Pied cows in the course of the year |
| title_full_unstemmed | Changes in the relationship between blood plasma glucose concentration and milk production in Czech Pied cows in the course of the year |
| title_short | Changes in the relationship between blood plasma glucose concentration and milk production in Czech Pied cows in the course of the year |
| title_sort | changes in the relationship between blood plasma glucose concentration and milk production in czech pied cows in the course of the year |
| topic | Czech Pied cattle cows milk protein fat |
| url | https://acta.mendelu.cz/52/2/0097/ |
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