Association between milk fatty acids in early lactation and … · 2017-10-28 · Association...

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Association between milk fatty acids in early lactation and subsequent reproductive performance of modern high - yielding dairy cows S. Jorjong, G. Opsomer, J. Chen, A. T. M. van Knegsel, B. Kemp Speaker: Veerle Fievez

Transcript of Association between milk fatty acids in early lactation and … · 2017-10-28 · Association...

Page 1: Association between milk fatty acids in early lactation and … · 2017-10-28 · Association between milk fatty acids in early lactation and subsequent reproductive performance of

Association between milk fatty acids in early lactation and subsequent reproductive performance of modern high-yielding dairy cows

S. Jorjong, G. Opsomer, J. Chen, A. T. M. van Knegsel, B. Kemp

Speaker: Veerle Fievez

Page 2: Association between milk fatty acids in early lactation and … · 2017-10-28 · Association between milk fatty acids in early lactation and subsequent reproductive performance of

Veerle Fievez

Ghent University

Laboratory for Animal Nutrition and Animal Product Quality

Association between milk fatty acids

in early lactation and subsequent

reproductive performance of high

yielding dairy cows

Page 3: Association between milk fatty acids in early lactation and … · 2017-10-28 · Association between milk fatty acids in early lactation and subsequent reproductive performance of

Veerle Fievez

Ghent University

Laboratory for Animal Nutrition and Animal Product Quality

Association between milk fatty acids

in early lactation and subsequent

reproductive performance of high

yielding dairy cows

Page 4: Association between milk fatty acids in early lactation and … · 2017-10-28 · Association between milk fatty acids in early lactation and subsequent reproductive performance of

Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

OUTPUT

INPUT

Early lactation: period of NEB

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Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

Baumgard and Rhoads, 2007

Fat mobilization NEB

Early lactation: period of NEB

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Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

Baumgard and Rhoads, 2007

Fat mobilization hyperketonemia

Early lactation: risk for hyperketonemia

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Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

NEB Reduced fertility

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Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

Baumgard and Rhoads, 2007

NEB & hyperketonemia milk biomarkers

NEB biomarker in milk

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Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

NEB biomarker in milk

biomarker NEB: plasma NEFAHyperketonemia

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Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

NEB C18:1 cis-9 in milk

Corrected C18:1 cis-9 (g/100 g FA) ≥ 3.98

Corrected C18:1 cis-9 (g/100 g FA) < 3.98

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Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

Hyperketonemia C18:1 cis-9/C15:0 in milk

C18:1 cis-9/C15:0 (g/g) ≥ 45

C18:1 cis-9/C15:0 (g/g) < 45

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Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

Biomarkers in milk reproduction

biomarker Reproductive performance

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Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

Biomarkers in milk reproduction

biomarker Resumption of ovarian cyclicity?

Calving to pregnancy?

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Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

Biomarkers in milk reproduction: set up

First 100 days of lactation

Experiment 1: 92 cowsExperiment 2: 93 cows

Blood (weeks 2 to 8): NEFA & BHBA

Milk (week 2): fatty acidsMilk (week 2 – d100): progesteron

Page 15: Association between milk fatty acids in early lactation and … · 2017-10-28 · Association between milk fatty acids in early lactation and subsequent reproductive performance of

Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

Biomarkers in milk reproduction: results

Corr C18:1 cis-9 ≥ 3.98Corr C18:1 cis-9 < 3.98

Page 16: Association between milk fatty acids in early lactation and … · 2017-10-28 · Association between milk fatty acids in early lactation and subsequent reproductive performance of

Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

Biomarkers in milk reproduction: results

C18:1 cis-9/C15:0 ≥ 45C18:1 cis-9/C15:0 < 45

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Conclusion

Milk fatty acids & reproductive problems

1/ NEB-biomarker: • C18:1cis-9

2/ Hyperketonemia-biomarker• C18:1 cis-9/C15:0

3/ Milk biomarkers of NEB & hyperketonemia:• Delayed first progesteron rise• Prolonged calving - pregnancy

Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]

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Ghent University

Laboratory for Animal Nutrition and Animal Product Quality

Member of the Food2Know network – www.food2know.be

Prof. Veerle Fievez

[email protected]

Thank you for your attention

Laboratory for Animal Nutrition and Animal Product Quality

http://www.lanupro.UGent.be – [email protected]


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