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. 2023 Feb 23;15(5):1105. doi: 10.3390/nu15051105

Table 2.

Formulas for conventional growth indices.

Feed Conversion Ratio Total Gain Specific Growth Rate
FCR = Qh/TG TG = Wgf − Wgi SGR = 100 × [ln(Wgf) − ln(Wgs)]/T

Qh—the total amount of food consumed for 14 days in each group; TG—total body weight gain of the group; Wgf—final body weight of the group; Wgi—initial body weight of the group; T—the total number of days of the experiment.