Early growth of the local kids and the effects of non-genetic factors in pastoral breeding mode in Tunisian arid zone

Figures & data

Figure 1. The growth of body weight at the age of birth to 150 days of Tunisian local kids.

Table 1. The test of significance for body weights at the age of 0, 30, 60, 90, 120 and 150 days according to different kidding year and month, the sex, birth type and coat colour of kids and the age of dam of Tunisian local kids.

		Body weights (kg)
Factors	Degree of liberty	1 day	30 days	60 days	90 days	120 days	150 days
Year	4	*	**	**	**	**	**
Month	3	**	NS***	*	**	**	**
Pastoral zone	2	**	**	**	**	**	**
Herd	8	**	**	**	**	**	**
R^2		0.69	0.80	0.79	0.55	0.87	0.89

* P<0.05; **P<0.01; ***P>0.05 (not significant).

R²: ANOVA model coefficient of determination.

Table 2. The means of body weights at the age of 0, 30, 60, 90, 120 and 150 days of local kids from the kidding year of 2002 to 2005.

	Body weights (kg)
Years	1 day	30 days	60 days	90 days	120 days	150 days
2002	2.57^Footnotea	4.83^Footnoteb	6.58^Footnoteb	8.03^Footnotec	9.55^Footnotec	12.17^Footnotec
2003	2.34^Footnoteb	5.32^Footnotea	7.34^Footnotea	9.14^Footnoteb	11.47^Footnoteb	13.68^Footnoteb
2004	2.46^Footnoteab	4.90^Footnoteb	7.33^Footnotea	9.98^Footnotea	13.08^Footnotea	15.01^Footnotea
2005	2.41^Footnoteab	3.86^Footnotec	5.60^Footnotec	6.39^Footnoted	9.10^Footnotec	9.96^Footnoted

^a,b,c,d Means with different superscripts within a column are significant (P<0.05).

Figure 2. Kids' weights till 6 months age by year of birth in pastoral mode.

Figure 3. Kids' weights till 6 months age according to the month of birth.

Table 3. The means of body weights at the age of 1, 30, 60, 90, 120 and 150 days of local kids according to the kidding month of 1, 2, 3 and 12.

	Body weights (kg)
Months	1 day	30 days	60 days	90 days	120 days	150 days
1	2.56^Footnotea	4.73	7.23^Footnotea	9.33^Footnotea	11.78^Footnotea	13.25^Footnotea
2	2.52^Footnotea	4.89	6.81^Footnotea	8.02^Footnoteb	9.46^Footnoteb	13.44^Footnotea
3	2.11^Footnoteb	4.24	6.07^Footnoteb	6.90^Footnotec	8.17^Footnoteb	9.45^Footnoteb
12	2.43^Footnoteab	4.80	6.71^Footnoteab	8.45^Footnoteab	10.99^Footnotea	12.83^Footnotea

^a,b,c Means with different superscripts within a column are significant (P<0.05).

Figure 4. Kids' growth curve adjusted by Gompertz model and by ecological zone.

Figure 5. Kids' growth curve adjusted by Gompertz model by goat herds.