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Table 1.

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Description of different growth function.

Function	Equation¹	Reference
Brody	$Y = A (1 - B e^{~ - K T})$	(Brody, 1945)
Gompertz	$Y = A e^{~ - B e^{~ - K T}}$	(Winsor, 1932)
Logistic	$Y = \frac{A}{1 + B e^{~ - K T}}$	(Nelder, 1961)
Negative exponential	$Y = A - (A e^{~ - K T})$	(Ghavi Hossein-Zadeh, 2015)
Richards	$Y = A (1 - B e^{~ - K T})^{M}$	(Richards, 1959)
von Bertalanffy	$Y = A (1 - B e^{~ - K T})^{3}$	(von Bertalanffy, 1957)

Function	Equation¹	Reference
Brody	$Y = A (1 - B e^{~ - K T})$	(Brody, 1945)
Gompertz	$Y = A e^{~ - B e^{~ - K T}}$	(Winsor, 1932)
Logistic	$Y = \frac{A}{1 + B e^{~ - K T}}$	(Nelder, 1961)
Negative exponential	$Y = A - (A e^{~ - K T})$	(Ghavi Hossein-Zadeh, 2015)
Richards	$Y = A (1 - B e^{~ - K T})^{M}$	(Richards, 1959)
von Bertalanffy	$Y = A (1 - B e^{~ - K T})^{3}$	(von Bertalanffy, 1957)

¹Y = observed body weight at age T (days); A = Asymptotic weight; B = Integrated constant; K = rate of maturity; M = inflection point to A.

Table 1.

Open in new tab

Description of different growth function.

Function	Equation¹	Reference
Brody	$Y = A (1 - B e^{~ - K T})$	(Brody, 1945)
Gompertz	$Y = A e^{~ - B e^{~ - K T}}$	(Winsor, 1932)
Logistic	$Y = \frac{A}{1 + B e^{~ - K T}}$	(Nelder, 1961)
Negative exponential	$Y = A - (A e^{~ - K T})$	(Ghavi Hossein-Zadeh, 2015)
Richards	$Y = A (1 - B e^{~ - K T})^{M}$	(Richards, 1959)
von Bertalanffy	$Y = A (1 - B e^{~ - K T})^{3}$	(von Bertalanffy, 1957)

Function	Equation¹	Reference
Brody	$Y = A (1 - B e^{~ - K T})$	(Brody, 1945)
Gompertz	$Y = A e^{~ - B e^{~ - K T}}$	(Winsor, 1932)
Logistic	$Y = \frac{A}{1 + B e^{~ - K T}}$	(Nelder, 1961)
Negative exponential	$Y = A - (A e^{~ - K T})$	(Ghavi Hossein-Zadeh, 2015)
Richards	$Y = A (1 - B e^{~ - K T})^{M}$	(Richards, 1959)
von Bertalanffy	$Y = A (1 - B e^{~ - K T})^{3}$	(von Bertalanffy, 1957)

¹Y = observed body weight at age T (days); A = Asymptotic weight; B = Integrated constant; K = rate of maturity; M = inflection point to A.