Publicación:

Protocolo de estandarización de la conformación de la pechuga en machos Ross para obtener un biotipo adecuado en la producción.

Resumen

The selection of animals on breeding farms in poultry production is essential in the chicken marketing chain. The proper selection of these animals must be made during their growth to measure the performance they have in the weeks of life. A protocol was carried out to standardize the conformation of the breast in Ross males to obtain a suitable biotype in production at La Laja farm of Distraves S.A.S. A batch of 641 breeding males of 27 weeks, selected by the fleshing method, was taken according to the ranges of category of breast musculature and physical evaluation of the breeders using selection criteria, to divide them into groups according to these characteristics. An average mating percentage of 10.2% was found and 2160 eggs fertilized by the males were sent to an incubator (before and after fleshing). Through ovoscopy and embryodiagnosis, 143 pre-fleshing eggs were discarded, with a total of 85% of hatchings and 47 eggs after this, with an average fertility of 95%. There was a 10% increase in births after fleshing. It was evidenced that the increase in body condition leads to problems in the fertility of the reproducers, because they don’t carry out effective mounts due to poor contact in the cloacal area. The mating percentage should be 10-11% without overpopulating the batch to avoid problems in the behavior of the females. The births percentage after fleshing was significantly higher for the company. The protocol was made out without causing greater stress on the birds and with good adaptation by the company staff.