The effect of 2-day heat stress on the lipid composition of bovine milk and serum
Milk and serum were collected from dairy cows before and during a 2-day heat challenge. The concentrations of free short-chain fatty acids (SCFAs), the fatty acid (FA) profile, and the abundance of the major species of phosphatidylcholine (PC), phosphatidylethanolamine (PE), and sphingomyelin (SM) w...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2023-09-01
|
| Series: | Frontiers in Animal Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fanim.2023.1212904/full |
| _version_ | 1797685406625431552 |
|---|---|
| author | Cheng Li Cheng Li Zhiqian Liu Carolyn Bath Leah C. Marett Leah C. Marett Jennie Pryce Jennie Pryce Simone Rochfort Simone Rochfort |
| author_facet | Cheng Li Cheng Li Zhiqian Liu Carolyn Bath Leah C. Marett Leah C. Marett Jennie Pryce Jennie Pryce Simone Rochfort Simone Rochfort |
| author_sort | Cheng Li |
| collection | DOAJ |
| description | Milk and serum were collected from dairy cows before and during a 2-day heat challenge. The concentrations of free short-chain fatty acids (SCFAs), the fatty acid (FA) profile, and the abundance of the major species of phosphatidylcholine (PC), phosphatidylethanolamine (PE), and sphingomyelin (SM) were measured, and samples collected during heat exposure were compared with those collected prior to heat exposure. It was found that a 2-day heat challenge did not alter the global FA composition of milk fat nor the content of the major phospholipids. Although the concentration of SCFAs C3 and C4 and some lysophosphatidylcholine (LPC) species in milk was found to be associated with the forage type, neither of these lipid molecules can be used as an indicator of acute heat stress. While it is a positive finding that short-term heat stress has no detrimental effect on the FA composition or the nutritive quality of milk fat, this study highlights the complexity of validating a milk lipid biomarker for heat stress in dairy cows. |
| first_indexed | 2024-03-12T00:43:44Z |
| format | Article |
| id | doaj.art-f778faa5a8894a84b5359baf655798cb |
| institution | Directory Open Access Journal |
| issn | 2673-6225 |
| language | English |
| last_indexed | 2024-03-12T00:43:44Z |
| publishDate | 2023-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Animal Science |
| spelling | doaj.art-f778faa5a8894a84b5359baf655798cb2023-09-15T01:23:28ZengFrontiers Media S.A.Frontiers in Animal Science2673-62252023-09-01410.3389/fanim.2023.12129041212904The effect of 2-day heat stress on the lipid composition of bovine milk and serumCheng Li0Cheng Li1Zhiqian Liu2Carolyn Bath3Leah C. Marett4Leah C. Marett5Jennie Pryce6Jennie Pryce7Simone Rochfort8Simone Rochfort9AgriBio, Agriculture Victoria Research, Bundoora, VIC, AustraliaSchool of Applied Systems Biology, La Trobe University, Bundoora, VIC, AustraliaAgriBio, Agriculture Victoria Research, Bundoora, VIC, AustraliaAgriBio, Agriculture Victoria Research, Bundoora, VIC, AustraliaEllinbank Centre, Agriculture Victoria Research, Ellinbank, VIC, AustraliaCentre for Agricultural Innovation, School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, AustraliaAgriBio, Agriculture Victoria Research, Bundoora, VIC, AustraliaSchool of Applied Systems Biology, La Trobe University, Bundoora, VIC, AustraliaAgriBio, Agriculture Victoria Research, Bundoora, VIC, AustraliaSchool of Applied Systems Biology, La Trobe University, Bundoora, VIC, AustraliaMilk and serum were collected from dairy cows before and during a 2-day heat challenge. The concentrations of free short-chain fatty acids (SCFAs), the fatty acid (FA) profile, and the abundance of the major species of phosphatidylcholine (PC), phosphatidylethanolamine (PE), and sphingomyelin (SM) were measured, and samples collected during heat exposure were compared with those collected prior to heat exposure. It was found that a 2-day heat challenge did not alter the global FA composition of milk fat nor the content of the major phospholipids. Although the concentration of SCFAs C3 and C4 and some lysophosphatidylcholine (LPC) species in milk was found to be associated with the forage type, neither of these lipid molecules can be used as an indicator of acute heat stress. While it is a positive finding that short-term heat stress has no detrimental effect on the FA composition or the nutritive quality of milk fat, this study highlights the complexity of validating a milk lipid biomarker for heat stress in dairy cows.https://www.frontiersin.org/articles/10.3389/fanim.2023.1212904/fullmilkserumfatty acidsshort-chain fatty acidsphospholipidsheat stress |
| spellingShingle | Cheng Li Cheng Li Zhiqian Liu Carolyn Bath Leah C. Marett Leah C. Marett Jennie Pryce Jennie Pryce Simone Rochfort Simone Rochfort The effect of 2-day heat stress on the lipid composition of bovine milk and serum Frontiers in Animal Science milk serum fatty acids short-chain fatty acids phospholipids heat stress |
| title | The effect of 2-day heat stress on the lipid composition of bovine milk and serum |
| title_full | The effect of 2-day heat stress on the lipid composition of bovine milk and serum |
| title_fullStr | The effect of 2-day heat stress on the lipid composition of bovine milk and serum |
| title_full_unstemmed | The effect of 2-day heat stress on the lipid composition of bovine milk and serum |
| title_short | The effect of 2-day heat stress on the lipid composition of bovine milk and serum |
| title_sort | effect of 2 day heat stress on the lipid composition of bovine milk and serum |
| topic | milk serum fatty acids short-chain fatty acids phospholipids heat stress |
| url | https://www.frontiersin.org/articles/10.3389/fanim.2023.1212904/full |
| work_keys_str_mv | AT chengli theeffectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT chengli theeffectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT zhiqianliu theeffectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT carolynbath theeffectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT leahcmarett theeffectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT leahcmarett theeffectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT jenniepryce theeffectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT jenniepryce theeffectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT simonerochfort theeffectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT simonerochfort theeffectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT chengli effectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT chengli effectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT zhiqianliu effectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT carolynbath effectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT leahcmarett effectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT leahcmarett effectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT jenniepryce effectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT jenniepryce effectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT simonerochfort effectof2dayheatstressonthelipidcompositionofbovinemilkandserum AT simonerochfort effectof2dayheatstressonthelipidcompositionofbovinemilkandserum |