In Vitro and In Vivo Evaluation of the Effects of a Compound Based on Plants, Yeast and Trace Elements on the Ruminal Function of Dairy Cows
The high production levels reached by the dairy sector need adjustment in nutritional inputs and efficient feed conversion. In this context, we evaluated a compound (QY—Qualix Yellow) combining optimized inputs in trace elements and 20% MIX 3.0. In a first step, the effects of MIX 3.0 on ruminal fun...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Dairy |
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| Online Access: | https://www.mdpi.com/2624-862X/2/4/43 |
| _version_ | 1797505549034586112 |
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| author | Francoise Lessire Sandra Point Anca-Lucia Laza Knoerr Isabelle Dufrasne |
| author_facet | Francoise Lessire Sandra Point Anca-Lucia Laza Knoerr Isabelle Dufrasne |
| author_sort | Francoise Lessire |
| collection | DOAJ |
| description | The high production levels reached by the dairy sector need adjustment in nutritional inputs and efficient feed conversion. In this context, we evaluated a compound (QY—Qualix Yellow) combining optimized inputs in trace elements and 20% MIX 3.0. In a first step, the effects of MIX 3.0 on ruminal function were assessed in vitro by incubating ruminal fluid with the mixture at a ratio of 20:1. The results obtained encouraged us to test QY in vivo, on a herd of dairy cows. The herd was divided into one group of 19 dairy cows receiving the compound and a control group of 20 animals conducted in the same conditions, but which did not received the compound; the production performance and feed efficiency of the two groups were compared. In vitro experiments showed improved digestion of acid and neutral detergent fibres by 10%. The propionate production was enhanced by 14.5% after 6 h incubation with MIX 3.0. The plant mixture decreased the production of methane and ammonia by 37% and 52%, respectively, and reduced the number of protozoa by 50%. An increase in milk yield by 2.4 kg/cow/d (<i>p <</i> 0.1), combined with a decrease in concentrate consumption of 0.27 kg DM/cow/d (<i>p</i> < 0.001), was observed in vivo after consumption of the compound. Sixty-six days after the beginning of the trial, methane emissions per kg of milk were significantly lower in the group receiving QY. In conclusion, MIX 3.0 induced change in ruminal function in vitro and, when it entered into the composition of the QY, it appeared to improve feed efficiency and production performance in vivo. |
| first_indexed | 2024-03-10T04:20:10Z |
| format | Article |
| id | doaj.art-a58f2642d3e34b368f69ca224c2d6cf4 |
| institution | Directory Open Access Journal |
| issn | 2624-862X |
| language | English |
| last_indexed | 2024-03-10T04:20:10Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Dairy |
| spelling | doaj.art-a58f2642d3e34b368f69ca224c2d6cf42023-11-23T07:51:23ZengMDPI AGDairy2624-862X2021-10-012454255510.3390/dairy2040043In Vitro and In Vivo Evaluation of the Effects of a Compound Based on Plants, Yeast and Trace Elements on the Ruminal Function of Dairy CowsFrancoise Lessire0Sandra Point1Anca-Lucia Laza Knoerr2Isabelle Dufrasne3Centre des Technologies Agronomiques, 4577 Strée, BelgiumCentre Mondial de l’Innovation–AII (Agro-Innovation-International), Roullier, 35400 Saint Malo, FranceCentre Mondial de l’Innovation–AII (Agro-Innovation-International), Roullier, 35400 Saint Malo, FranceCentre des Technologies Agronomiques, 4577 Strée, BelgiumThe high production levels reached by the dairy sector need adjustment in nutritional inputs and efficient feed conversion. In this context, we evaluated a compound (QY—Qualix Yellow) combining optimized inputs in trace elements and 20% MIX 3.0. In a first step, the effects of MIX 3.0 on ruminal function were assessed in vitro by incubating ruminal fluid with the mixture at a ratio of 20:1. The results obtained encouraged us to test QY in vivo, on a herd of dairy cows. The herd was divided into one group of 19 dairy cows receiving the compound and a control group of 20 animals conducted in the same conditions, but which did not received the compound; the production performance and feed efficiency of the two groups were compared. In vitro experiments showed improved digestion of acid and neutral detergent fibres by 10%. The propionate production was enhanced by 14.5% after 6 h incubation with MIX 3.0. The plant mixture decreased the production of methane and ammonia by 37% and 52%, respectively, and reduced the number of protozoa by 50%. An increase in milk yield by 2.4 kg/cow/d (<i>p <</i> 0.1), combined with a decrease in concentrate consumption of 0.27 kg DM/cow/d (<i>p</i> < 0.001), was observed in vivo after consumption of the compound. Sixty-six days after the beginning of the trial, methane emissions per kg of milk were significantly lower in the group receiving QY. In conclusion, MIX 3.0 induced change in ruminal function in vitro and, when it entered into the composition of the QY, it appeared to improve feed efficiency and production performance in vivo.https://www.mdpi.com/2624-862X/2/4/43methanedairy cowstrace elementsruminal functionfeed additive |
| spellingShingle | Francoise Lessire Sandra Point Anca-Lucia Laza Knoerr Isabelle Dufrasne In Vitro and In Vivo Evaluation of the Effects of a Compound Based on Plants, Yeast and Trace Elements on the Ruminal Function of Dairy Cows Dairy methane dairy cows trace elements ruminal function feed additive |
| title | In Vitro and In Vivo Evaluation of the Effects of a Compound Based on Plants, Yeast and Trace Elements on the Ruminal Function of Dairy Cows |
| title_full | In Vitro and In Vivo Evaluation of the Effects of a Compound Based on Plants, Yeast and Trace Elements on the Ruminal Function of Dairy Cows |
| title_fullStr | In Vitro and In Vivo Evaluation of the Effects of a Compound Based on Plants, Yeast and Trace Elements on the Ruminal Function of Dairy Cows |
| title_full_unstemmed | In Vitro and In Vivo Evaluation of the Effects of a Compound Based on Plants, Yeast and Trace Elements on the Ruminal Function of Dairy Cows |
| title_short | In Vitro and In Vivo Evaluation of the Effects of a Compound Based on Plants, Yeast and Trace Elements on the Ruminal Function of Dairy Cows |
| title_sort | in vitro and in vivo evaluation of the effects of a compound based on plants yeast and trace elements on the ruminal function of dairy cows |
| topic | methane dairy cows trace elements ruminal function feed additive |
| url | https://www.mdpi.com/2624-862X/2/4/43 |
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