DSD 4.7 | Is there a relationship between Ketosis and antioxidant ability
For years, dairy producers have worked towards best understanding all the challenges a cow experiences as she transitions from dry into lactation. If we can best identify the animals who take this transition in stride, we can work towards improving the single most challenging part of dairy production. This month, we are joined by two Belgium researchers looking to examine the relationship between antioxidant activity and ketotis, specifically BHBA.
Dr. Fievez, ruminant nutritionist at Ghent University - in Belgium, worked with PhD candidate MQ Zhang to study the metabolic and antioxidant parameters of 110 animals through transition. Listen in to hear what you can learn about the complex transition dairy cow!
These findings were published in the Journal of Dairy Science article titled, “Transition cow clusters with distinctive antioxidant ability and their relation to performance and metabolic status in early lactation.” Open access, available for download.Topics of discussion
3:17 Importance of determining Antioxidative Ability
4:44 Hypothesis – structure of the project
5:16 Metabolic parameters studied and their relationship to oxidation
5:31 Background of BHBA
6:02 Negative energy balance -
6:27 NEFA and Low or High antioxidant activity
6:58 Cows with Lower Antioxidant activity have lower milk yield
7:46 Oxidative Stress and damage – what does it look like?
9:29 How the cow Balances – monitor enzyme profile
10:19 Description of the research herd
11:07 Results – Figure 6; cows with HAA in early lactation, rarely develop metabolic disease
12:33 How NEFA add to oxidative status
12:49 Oxidative action and immune function
16:09 LAA – Higher BHBA – tended to be higher NEFA
18:01 What do you want boots on the ground dairymen to know?
18:49 Dietary inclusion
19:20 Closure
#2xAg2030; #journalofdairyscience; @jdairyscience; #openaccess; #MODAIRY; #antioxidant; #earlylactation, #transition; #transitiondairy; #ketosis, #BHBA; #ReaganBluel
https://www.journalofdairyscience.org/article/S0022-0302(23)00351-X/fulltext
DSD 5.5 | Avoid generations of production losses
DSD 5.4 | Reconsider Choline for lasting returns
DSD 5.3 | Slight modifications of CIDR Sync - help or hinder?
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DSD 4.12 | Mature mamas sail through transition with beef cross calves
DSD 4.11 | Reproduction Revolution
DSD 4.10 | Prevent Early Embryonic Losses
DSD 4.9 | Is your starch locked up by Zein proteins?
DSD 4.8 | How does grass-based milk impact human nutrition?
DSD 4.6 | Accounting for accelerated genetic improvement
DSD 4.5 | Achieve Efficiency with Low N Rations
DSD 4.4 | Early Estrus Settles Cows
DSD 4.3 | Financial thresholds of successful dairies in NY
DSD 4.2 | How to anticipate colostrum changes
DSD 4.1 | Fueling the appetite of your herd
DSD 3.12 | One minute delay is costing you
DSD 3.11 | Ultrasound assessment of pneumonia
DSD 3.10| Fetal programming effects of Choline
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