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High environmental temperatures cause very serious economic losses to egg-laying farms.
In a recent post we discussed the negative effects of heat stress on egg quality. In today’s article, we will describe the impact of high environmental temperatures in hens (layers and breeders), male breeders and on the hatchability of fertile eggs.
If exposed to high temperatures for several days, laying and breeding hens go through hormonal changes that ultimately result in a reduction of the fertility.
These hormonal changes take place through two pathways:
Broiler breeders are more sensitive to heat stress than females.
In this article we explained that chicken spermatozoa have an extremely high proportion of polyunsaturated fatty acids (PUFA). This particular lipid profile makes the spermatozoa very sensitive to the peroxidative damage caused by heat stress. For this reason, the administration of essential oils with high antioxidant properties and vitamin E is useful to restore fertility parameters (PhytoMax©)
Whenever male breeders are exposed to high environmental temperatures for a prolonged period:
It has been demonstrated that the optimal temperature for incubation is 37.8ºC.
Heat stress (temperatures higher than 38ºC) during the incubation period has been shown to have a negative impact on hatchability and day-one-chick quality:
PhytoMax© is a combination of vitamins, chelated calcium, microminerals and essential oils to be given through drinking water. It is intended for layers and breeders to:
PlusBreathe© contains essential oils with natural antiseptic, antioxidant, expectorant and mucolytic activity. It has a refreshing taste.
It is indicated to improve the functioning of the respiratory system and to mitigate heat stress in birds, ruminants, pigs and rabbits of all ages. It can also be nebulized in the farm environment.
Certain health statements may not be applicable in your region.