توصيف منحنى النمو لدى مواليد الماعز الشامي في سورية

الملخص EN

This study was carried out at Qrahta research station for rearing of Shami goats.

The study was aimed to characterize the growth curve of Shami goats born in Syria to analyzes the data for 250 born in 2003.

Used Prodi function to estimate the growth curve parameters [a (representing birth weight birth), b (the amount of increase in the growth curve with advancing age), c (the amount of decrease in the growth curve)].

General Linear Model, used to analysis variance was for study the effect of sex, and type of Birth, and parety of dam, and overlap with each other on the growth curve of the born Shami goats parameters, and use Duncan test to compare the averages.

The averages of the growth curve of the kids was (3.93 ± 0.74) kg for the function (a), and (1.65 ± 0.38) kg for the function (b), and (0.095 ± 0.061) kg to function (c), and the value of the coefficient of determination (0.98 ± 0.013=R2 ).

the results showed that the sex kids, type of Birth, and parety of dam effected significantly on parameter (a) for curve growth born Shami goats.

Male kids were heavier than females, and the singlets were found to be heavier than twin birth, the kids were born of young parity of dam Trutab heavier than born of multiplicative parity of dam.

the results observed a significant effect (0.05> p) of the interaction between type of Birth × parety of dam on function (a) in the growth curve of born Shami goats, whil any significant effect (0.05> p) btween einteraction sex × parety of dam, and sex × type of Birth in the growth curve of born Shami goats.

The study concludes: the Brodie model issuitable for the growth of born Shami goats from birth weight until the weight age of 240 days.

also The weight at age (8 ) months Jbdacriterion for electionand marketingin an average weight of (28.17) kg for goats born Shami.