Effects of medium-chain fatty acid supplementation on performance and rumen fermentation of lactating Holstein dairy cows
Medium-chain fatty acids (MCFAs) have antimicrobial properties and cause negative or positive effects on animal performance depending on its dosage. We hypothesized that MCFA supplementation at a lower dose (i.e., 0.05–0.2% of dietary DM) would increase rumen pH and milk production without decreasin...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-04-01
|
| Series: | Animal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1751731122000428 |
| _version_ | 1818265022853283840 |
|---|---|
| author | M. Burdick M. Zhou L.L. Guan M. Oba |
| author_facet | M. Burdick M. Zhou L.L. Guan M. Oba |
| author_sort | M. Burdick |
| collection | DOAJ |
| description | Medium-chain fatty acids (MCFAs) have antimicrobial properties and cause negative or positive effects on animal performance depending on its dosage. We hypothesized that MCFA supplementation at a lower dose (i.e., 0.05–0.2% of dietary DM) would increase rumen pH and milk production without decreasing nutrient digestibility which is typically observed with the higher inclusion rates (i.e., >1% of dietary DM). The objective of this study was to evaluate the effects of MCFA supplementation at a lower dose on productivity, plasma energy metabolite concentrations, apparent total tract nutrient digestibility, rumen fermentation, and rumen microbial profile of lactating dairy cows. Thirty (n = 8 primiparous, n = 22 multiparous) Holstein cows in mid-lactation (637 ± 68.5 kg of initial BW, 98.5 ± 27.4 d in milk; mean ± standard deviation) were used in a crossover design with two 28-d periods. The MCFA supplement, consisted of 25% MCFA (containing 32% C8:0, 21% C10:0, 47% C12:0 on DM basis) and 75% carrier ingredients, was fed at 0.25% of dietary DM replacing dry ground corn in control (CON). Total inclusion of MCFA was 0.063% of dietary DM. No differences were observed in DM intake, apparent total tract nutrient digestibility and BW change between MCFA and CON. Milk and milk component yields did not differ between treatment groups. The MCFA supplementation tended to have higher minimum rumen pH (5.66 vs. 5.54), and decreased daily fluctuation range of rumen pH (1.17 vs. 1.40) compared to CON. However, the duration of acidosis (pH < 5.8, min/d) did not differ between treatment groups and ruminal total volatile fatty acid concentration and its profile did not differ between treatment groups. For rumen microbiota, the Chao1 index of bacterial community tended to be lower (10.9 vs. 11.6) whereas the Shannon index did not differ (0.91 vs. 0.93) in MCFA compared to CON, and both indices did not differ for archaeal and protozoan communities between treatment groups. The relative abundance of Methanobrevibacter gottschalkii increased when supplemented with MCFA (5.14 vs. 4.92%). These results suggest that supplementation of MCFA at 0.063% dietary DM may not affect overall animal performance or total tract nutrient digestibility, but decrease the daily range of pH and the bacterial richness in the rumen. |
| first_indexed | 2024-12-12T19:44:12Z |
| format | Article |
| id | doaj.art-7456e245a2e84eac9520f3b860e069b8 |
| institution | Directory Open Access Journal |
| issn | 1751-7311 |
| language | English |
| last_indexed | 2024-12-12T19:44:12Z |
| publishDate | 2022-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Animal |
| spelling | doaj.art-7456e245a2e84eac9520f3b860e069b82022-12-22T00:14:09ZengElsevierAnimal1751-73112022-04-01164100491Effects of medium-chain fatty acid supplementation on performance and rumen fermentation of lactating Holstein dairy cowsM. Burdick0M. Zhou1L.L. Guan2M. Oba3Department of Agriculture, Food and Nutritional Science, University of Alberta, 4-10 Agriculture Forestry Center, University of Alberta, Edmonton, AB T6G 2P5, CanadaDepartment of Agriculture, Food and Nutritional Science, University of Alberta, 4-10 Agriculture Forestry Center, University of Alberta, Edmonton, AB T6G 2P5, CanadaDepartment of Agriculture, Food and Nutritional Science, University of Alberta, 4-10 Agriculture Forestry Center, University of Alberta, Edmonton, AB T6G 2P5, CanadaCorresponding author.; Department of Agriculture, Food and Nutritional Science, University of Alberta, 4-10 Agriculture Forestry Center, University of Alberta, Edmonton, AB T6G 2P5, CanadaMedium-chain fatty acids (MCFAs) have antimicrobial properties and cause negative or positive effects on animal performance depending on its dosage. We hypothesized that MCFA supplementation at a lower dose (i.e., 0.05–0.2% of dietary DM) would increase rumen pH and milk production without decreasing nutrient digestibility which is typically observed with the higher inclusion rates (i.e., >1% of dietary DM). The objective of this study was to evaluate the effects of MCFA supplementation at a lower dose on productivity, plasma energy metabolite concentrations, apparent total tract nutrient digestibility, rumen fermentation, and rumen microbial profile of lactating dairy cows. Thirty (n = 8 primiparous, n = 22 multiparous) Holstein cows in mid-lactation (637 ± 68.5 kg of initial BW, 98.5 ± 27.4 d in milk; mean ± standard deviation) were used in a crossover design with two 28-d periods. The MCFA supplement, consisted of 25% MCFA (containing 32% C8:0, 21% C10:0, 47% C12:0 on DM basis) and 75% carrier ingredients, was fed at 0.25% of dietary DM replacing dry ground corn in control (CON). Total inclusion of MCFA was 0.063% of dietary DM. No differences were observed in DM intake, apparent total tract nutrient digestibility and BW change between MCFA and CON. Milk and milk component yields did not differ between treatment groups. The MCFA supplementation tended to have higher minimum rumen pH (5.66 vs. 5.54), and decreased daily fluctuation range of rumen pH (1.17 vs. 1.40) compared to CON. However, the duration of acidosis (pH < 5.8, min/d) did not differ between treatment groups and ruminal total volatile fatty acid concentration and its profile did not differ between treatment groups. For rumen microbiota, the Chao1 index of bacterial community tended to be lower (10.9 vs. 11.6) whereas the Shannon index did not differ (0.91 vs. 0.93) in MCFA compared to CON, and both indices did not differ for archaeal and protozoan communities between treatment groups. The relative abundance of Methanobrevibacter gottschalkii increased when supplemented with MCFA (5.14 vs. 4.92%). These results suggest that supplementation of MCFA at 0.063% dietary DM may not affect overall animal performance or total tract nutrient digestibility, but decrease the daily range of pH and the bacterial richness in the rumen.http://www.sciencedirect.com/science/article/pii/S1751731122000428DigestibilityMethanogenesisRumen acidosisRumen microbiomeRumen pH |
| spellingShingle | M. Burdick M. Zhou L.L. Guan M. Oba Effects of medium-chain fatty acid supplementation on performance and rumen fermentation of lactating Holstein dairy cows Animal Digestibility Methanogenesis Rumen acidosis Rumen microbiome Rumen pH |
| title | Effects of medium-chain fatty acid supplementation on performance and rumen fermentation of lactating Holstein dairy cows |
| title_full | Effects of medium-chain fatty acid supplementation on performance and rumen fermentation of lactating Holstein dairy cows |
| title_fullStr | Effects of medium-chain fatty acid supplementation on performance and rumen fermentation of lactating Holstein dairy cows |
| title_full_unstemmed | Effects of medium-chain fatty acid supplementation on performance and rumen fermentation of lactating Holstein dairy cows |
| title_short | Effects of medium-chain fatty acid supplementation on performance and rumen fermentation of lactating Holstein dairy cows |
| title_sort | effects of medium chain fatty acid supplementation on performance and rumen fermentation of lactating holstein dairy cows |
| topic | Digestibility Methanogenesis Rumen acidosis Rumen microbiome Rumen pH |
| url | http://www.sciencedirect.com/science/article/pii/S1751731122000428 |
| work_keys_str_mv | AT mburdick effectsofmediumchainfattyacidsupplementationonperformanceandrumenfermentationoflactatingholsteindairycows AT mzhou effectsofmediumchainfattyacidsupplementationonperformanceandrumenfermentationoflactatingholsteindairycows AT llguan effectsofmediumchainfattyacidsupplementationonperformanceandrumenfermentationoflactatingholsteindairycows AT moba effectsofmediumchainfattyacidsupplementationonperformanceandrumenfermentationoflactatingholsteindairycows |