THE USE OF VARIOUS TYPES OF GROWTH FUNCTI ONS FOR MODELING WEIGHT DEVELOPMENT IN CZECH PIED CATTLE

Authors
NESETRILOVA H PULKRABEK J
Citation
H. Nesetrilova et J. Pulkrabek, THE USE OF VARIOUS TYPES OF GROWTH FUNCTI ONS FOR MODELING WEIGHT DEVELOPMENT IN CZECH PIED CATTLE, Zivocisna vyroba, 40(6), 1995, pp. 245-248
Citations number
NO
Categorie Soggetti
Agriculture Dairy & AnumalScience
Journal title
Zivocisna vyroba → ACNP
ISSN journal
00444847
Volume
40
Issue
6
Year of publication
1995
Pages
245 - 248
Database
ISI
SICI code
0044-4847(1995)40:6<245:TUOVTO>2.0.ZU;2-S
Abstract
Three types of functions were checked in a set of bulls of the Czech P ied cattle (n = 101) to construct growth curves. Live weight was recor ded in the interval of 30 to 1 470 days. Three types of models were us ed to describe the growth pattern: A) Gompertz function y(t)=A.e(-b.e- kt) B) Function y(t)=A.t(b).e(-kt) C) Richards function y(t)=A.(1-be(- kt-(l/n)). Richards function has been found to be best for the investi gated set of bulls out of the growth models used.