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A heat stress feed strategy for each animal species

How nutrition can limit heat stress impacts?

Due to the wide variety of heat stress impacts: fall of feed intake, oxidative stress, leaky gut, increase of heart rate, sweating, panting…, it is very difficult to solve it with a single solution. The CCPA Group develop therefore specific feed solutions for each animal species, in order to maintain production performance.

Enhancing feed intake and pigs performance:

To prevent the feed intake drop, CCPA Group has designed a specific blend of feed ingredients which supports the feed intake. Axion® ThermoControl contributes to improve pigs appetite thanks to Capsaicin, a specific plant extract activating TRPV1 (Transient Receptors Potential Vanilloïd1). These receptors are involved in body temperature reduction through different mechanisms: heart rate reduction, increase of insulin level and decrease of adipogenesis. Besides, to relieve the animals, Axion®ThermoControl contains buffering substances improving the ionic balance and limiting alkalosis due to high temperature and respiratory rate. Axion® ThermoControl is effective during the fattening period where heat stress induces a deteriorated feed intake and a slower growth. Different trials on fatteners were carried out with Axion® ThermoControl incorporated into feed, on top. The table 1 illustrates the performance results obtained, as for the trial and control groups of animals.

Table 1: More growth and better FCR with Axio® ThermoControl – CCPA Group field trials, 2015-16

Mexico

Vietnam

Costa Rica

Average effect

Control

Axion® ThermoControl

Control

Axion® ThermoControl

Control

Axion® ThermoControl

200

200

40

38

98

93

2390

2440

2270

2440

2360

2490

+5.1%

2.77

2.71

2.92

2.77

2.61

2.61

-2.5¨%

864

900

805

885

906

953

+6.4%

 

Field trials were also led on sows in hot conditions (27 to 35°C) in Europe and Asia. The use of Axion® ThermoControl clearly enhances sows feed intake (+400g in average) and sows milk production, and consequently increases the litter weight: +4.9%, in average. Besides, sow’s weight losses during lactation were reduced for the group of sows with Axion®ThermoControl.

Boosting milk yield and relieving ruminants:

The nutritional solution Axion®Thermoplus incorporated to feed was developed to act at the different levels impaired by hot weather in order to maintain animal performance, through three several ways:

  • As a specific blend of feed ingredients (with selected fenugrec and aroma), it supports dry matter intake, by increasing palatability and reducing satiety.
  • Plant extracts namely sialagogue substances increase salivary production and pH, as buffering agents for the diet.
  • Specific spices (chili peppers…) act also in the general metabolism regulation, with a reduction of the heart rate and body temperature of the animals through their action on TRPV1.

CCPA Group carried out numerous field trials on different diets, worldwide. In each country, milk yield increased for the batches of animals supplemented with Axion® Thermoplus: from 0.5 to 3 litres more. Even in farms with existing cooling system (for example in Vietnam), a gain was noticed with Axion® Thermoplus. In the following table are summarized several field trials led with two batches of animals, in different countries.

Table 2: Higher milk yield during heat stress - CCPA Group, 2016
 

Location

Number of animals

Cattle breed

THI

Milk yield (l) –Control group

Milk yield (l)– Axion® Thermoplus group

Difference (l)

France

54

Prim Holstein

72

31.2

32.4

+1.2

Vietnam

178

Prim Holstein

82

24.2

25

+0.8

Vietnam

39

Prim Holstein

82

24

25.05

+1.05

Mexique

44

Prim Holstein

72

37

39.05

+2.05

Turkey

20

Prim Holstein

80

28.4

30.19

+1.76

Hungary

632

Prim Holstein

79

29.46

31.73

+2.27

Brazil

175

Zebu Cross

75

30.6

31.6

+1

Brazil

36

Zebu Cross

79

18

19.3

+1.3

Farmers also noticed behavior changes, signs of an animal welfare improvement, with dairy cows more relaxed, spending more time resting and chewing…

Supporting poultry health and performance:

Poultry are very sensitive to heat stress. A small variation of temperature could quickly become dramatic as their body temperature is around 41°C and a variation of 4 °C is lethal. Three specific nutritional specialties for poultry were designed to improve growth performance and limit mortality in starter phase and during heat stress:

  • Delta®Stimflash, a liquid nutritional specialty, provides antioxidants and reduce oxidative stress. Composed of Vitamin C and plant extracts, this nutritional specialty maintains production performances (see graph1 below) and is used before and during heat stress.

 

 

  • Delta®Hydralac, as effervescent tablets, stimulates water consumption to prevent dehydration. It provides a balance of Na+, K+, Cl- electrolytes and thickens the content of the digestive tract to limit electrolyte and water losses. During heat stress, it is recommended to provide feed during the night (when it is cooler) and only water and Delta® Hydralac to the animals at midday.
  • Deltacarnitol®, a liquid nutritional specialty delivering carnitine, sorbitol and plant extracts, boosts feed intake and increases feed digestibility. It could be also used after heat stress period to help poultry recover.

How to diagnose heat stress?

In order to evaluate the risk level of heat stress in farms, the CCPA Group has developed for the farm producers a specific heat stress application for smartphones (Iphone and Android) entitled: ThermoTool™, which can be downloaded for free on Apple Store and Google Play. Thanks to this application, breeders can anticipate heat stress over 5 days and quickly adapt and set up preventive measures, if necessary, in the management of their farm and for the animal nutrition.

Besides, a dedicated sensor connected to the application ThermoTool was also developed by the company, in order to record automatically temperature and hygrometry in the farm buildings. This equipment is complementary to the application as it gives real heat stress risk inside the farm buildings in real time.
 

Jean Pascard and Veronique Abgrall,
Marketing department, CCPA Group

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