Based on the measured data of three important economic traits (body weight, body length and body height) of the hybrids F₁ of individuals at the ages of 0.3 months, 2 months, 7 months and 11 months, the growth rate and heterosis of the hybrids F₁ were analyzed and compared with , using the performance metrics of coefficient of variation, high-parent heterosis, relative and absolute growth rate, relationship curve of body weight and body height, and relative fatness. At age of 7 months, the mean body weight of the hybrids F₁ (300.4 g±118.2 g) was not significantly different with (305.2 g±82.5 g), while the mean monthly relative growth rate of body weight, body length and body height (280.13%, 25.30% and 27.55% ) of the hybrids F₁ were higher than that of (89.62%, 15.90% and 12.72%). The high-parent heterosis of the hybrids F₁ for body length at age of 0.3 months and 11 months was 2.48% and 0.91%, respectively. All growth rate curves of the hybrids F₁ were similar with their female parent (540.88 g±173.66 g) was significantly lower than (624.45 g±154.11 g) at age of 11 months. The coefficient of determination (0.992 and 0.995), condition factor (0.059 and 0.058) and allometric growth factor (2.722 and 2.740) for relationship curve of body weight and body height of the hybrids F₁and were almost identical. These results indicated that the primary growth trend of the hybrids F₁was similar to , the relationship curve of body weight and body height of the hybrids F₁ was consistent with that of , even though their overall growth rate was slightly slower than successfully inherited the fast growth trait from their female parent , with some high-parent heterosis in body length.