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Broiler Performance at Different Stocking Densities

Univasa S. S. de C. V., Avenida Principal x José M. Castro Tejero, Apdo. Postal 59, Cd. Industrial, Mérida, Yucatán, México C. P. 97288; Phone: (22) 46-08-60; FAX: (22) 46-08-27

Jose C. Segura

Facultad de Medicina Veterinaria y Zootecnia, University Autónoma de Yucatán, Mérida, Yucatán, México 97100

Jose L. Alamilla

Univasa S. A. de C. V., Avenida Principal x José M. Castro Tejero, Apdo. Postal 59, Cd. Industrial, Mérida, Yucatán, México C. P. 97288

Correspondence: Diego Puron

In three experiments, Peterson x Hubbard broilers were reared at different stocking densities (SD) in an environmentally controlled (cool cells) house in Yucatan, Mexico. Males were housed until 7 wk of age at: 10, 12, and 14 birds/m² in Experiment 1: 14,15, and 16 birds/m² in Experiment 2; and 17, 17.5, and 18 birds/m² in Experiment 3. For females the SD were 11, 13, and 15 birds/m², 15, 16, and 17 birds/m², and 18, 19 and 20 birds/m². The highest SD of 18 males/m² resulted in only a 3% decrease in 7-wk body weight compared with the lowest density of 10 males/m². For females, the difference between the highest and lowest SD was only 1.5%. The reductions in feed consumption at the highest SD compared with the lowest were 3.7 and 3.9% for males and females, respectively. SD did not affect feed conversion or mortality in any of the experiments. The kg of broiler/m² and profit margins increased with SD up to 17 males/m² and 19 females/m².

Key Words: Broilers • México • stocking density • tropics

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