Raquitismo en pollos de engorde en las tres primeras semanas de edad por posible deficiencia de calcio, fosforo y vitamina D3.

Abstract

The San Francisco poultry farm has 3 sheds, San Francisco, Piggy Bank 1 and Piggy Bank 2. In the three sheds, three batches of 1-day-old birds were received, with a difference of one week; Piggy Bank 1 received 6120 birds, Piggy Bank 2 received 6120 birds and finally, San Francisco received 5100 birds; all of them coming from the poultry hatchery operator and with their vaccination protocol up to date. The 3 flocks presented in the first week of life, different degrees of claudication, and as the days passed this claudication ended in complete prostration; after this claudication the bird leaned on its wings to maintain its balance and when prostrated its head was focused towards the inside of the litter, providing secondary symptomatologies such as; respiratory noises and ocular irritation produced by aspiration of ammonia gases. A necropsy was performed as a diagnostic method in birds from each house, where no significant findings were found at the level of organs; however, at the level of joints, an abnormal elasticity was found in the tibiotarsal joint, commonly known as rubber feet, with the presence of scarce inflammation in the area itself, compatible with mineral deficiency such as calcium, phosphorus and vitamin D3; ocular irritation and scarce mucus at the level of the paranasal sinuses were also found, due to a possible secondary condition of aspiration of ammonia gases: calcium, phosphorus and vitamin D3; ocular irritation and scarce mucus at the level of the paranasal sinuses were also found, for possible secondary affection of ammonia gas aspiration. Consequently, a supplementation protocol based on calcium, phosphorus and vitamin D3 was implemented, showing improvement in the chick.