Zamora BG, Vásquez PCG, Berruecos VJM, Soto RL

Language: English/Spanish
References: 21
Page: 235-241
PDF size: 98.70 Kb.

ABSTRACT

This work was done at the Centro Acuícola "El Zarco" in order to evaluate growth during two stages, namely, development and finishing, and carcass values in two lines (Zarco and Jilotzingo) on rainbow trout and their reciprocal crosses. To evaluate heterosis and specific and general combining ability, diallelic crosses were made between both lines. Growth rate showed that line Jilotzingo (J) was 26.8% heavier (p ‹ 0.10) than Zarco (Z). The cross JZ was 46.44% (p‹0.05) heavier than the reciprocal one. Regarding the finishing stage and carcass values, again JZ had better results (p ‹ 0.05) than the reciprocal ones, and in the average of the pure lines as well. This suggests the need to develop male and female lines in order to obtain the maximum heterosis values.

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