Lactation start: 7 rules for managing lactation in midsummer

1. Feed the dry cows carefully

Dry cows often get the most out of grass, but if they are to get off to a good start in lactation, they need a good transition. That’s why it is advisable to bring dry cows into the barn and feed them the GALATARIE programme. This programme promotes good milk production and, above all, prevents the animals from losing too much weight. Problems around calving, often linked to mineral imbalances, are avoided: non-delivery, milk fever or mammary oedema.

The addition of antioxidants, such as Delta® AXION STIM, during the dry period helps to improve the quality and quantity of colostrum.

2. Promote intake at the start of lactation

When temperatures are high, appetite is reduced. The ration must therefore be concentrated to avoid an energy shortfall, using non-acidogenic energy sources. Adding live yeast (DELTALEVURES) will also help stimulate the animals’ intake.

3. Prevent acidosis by supplying buffer substances

In summer, high temperatures increase respiratory rates and promote the onset of acidosis due to the depletion of buffer reserves. To prevent acidosis, buffer substances should be added to the ration. A continuous supply of 200 g of Delta® pH CONTROL per day is an interesting preventive solution to avoid metabolic slippage.

4. Avoid fermentation problems

During these periods, the silo must move quickly to avoid fermentation problems. If there is a risk of this happening, a preservative should be used on the attack front and an antifungal agent applied (Delta® FONGITAMP). The troughs must also be cleaned every day.

5. Pay attention to watering

Finally, it is essential to control watering: check water flow rates and water quality. A cow can drink 120 litres of water a day.

6. Manage cases of severe heat stress

In the event of severe heat stress, the animals must be kept in comfortable conditions. Good ventilation of the building and the use of foggers will help to lower the animals’ body temperature and prevent an increase in heart rate. The use of THERMOPLUS has shown its effectiveness in improving milk production and reproductive performance.

THERMOPLUS acts on the various consequences of heat stress:

• Stimulate feed intake
• Reduce metabolic acetosis
• Improved animal comfort by reducing heart and breathing rates
• Improved digestion by stimulating enzyme production

Increased sodium and potassium intake in the ration also helps to compensate for losses through perspiration.

7. Monitor animal hygiene

The scraping area must be cleaned to limit the risk of lameness and mastitis. It is also especially important to check the animals’ legs and to include biotin and zinc in the ration to improve the strength of the legs.

CCPA Ruminants Department