Multivariate analysis for morphological traits of the Hamra goat population in two regions of Morocco

Abstract

SummaryThe goal of this study was to characterize the Hamra goat population and to determine if Hamra goats of Beni Arouss and Rommani regions belong to the same population. Eleven morphometric traits of 157 Hamra animals (94 from Beni Arouss and 63 from Rommani) were used for this study. Overall, heart girth, body length, height at withers (HaW), height at rump (HS), chest depth (ChD), pelvis width (PW), chest width (CW), cannon circumference, head length (HeL), head width (HeW) and horn length (HL) of Hamra goats averaged 81.3, 61.5, 64.8, 65.3, 40.9, 19.3, 20.2, 9.67, 28.0, 26.3 and 23.4 cm, respectively. The effect of region was significant only on HaW, PW, HeL, HeW and HL, indicating certain homogeneity among goats of the two regions. Moreover, the inter region variance component ranged from 0 percent (absence of variability) for HS, CW, ChD and ChD to 18.5 percent for HeL, suggesting that the variability of body measurements between Beni Arouss and Rommani regions is very low. The factor analysis revealed four factors, which accounted for 73.5 percent of the total variance. The most discriminant variables between the two populations were HeL, HeW, PW and CW. The Mahalanobis distance between the two populations was 1.197, suggesting that there was genetic exchange between the two populations. The discriminant analysis showed that 80.9 percent of Rommani and 50.0 percent of Beni Arouss individuals were classified into their respective population. Results obtained will help in developing improvement and preservation strategies for the Hamra goat population.

Primary morphological characterization of West African dwarf (Djallonk) ewes from Cte dIvoire based on qualitative and quantitative traits

“…High KMO values were also reported for cattle (Pundir et al, 2011;N'Goran et al, 2015N'Goran et al, , 2018. Whereas this result was slightly lower than that of Djallonké sheep reported by Birteeb et al (2012;, and that of Uda sheep reported by Yakubu and Ibrahim (2011) Findings in this study are in the range of those reported in Niger by Marichatou et al (2014) extracted for goat two factors to explain 67.8 % of the total variance, but lower than those reported by Hilal et al (2016) for the Hamra goat (73.5%) in Morocco where four factors were extracted to explain the total variance.…”

Phenotypic characterization of indigenous Cyprus Native Hair Goat breed using quantitative and qualitative trait analysis

“…Although there was no significant effect of gender on depth index and proportionality index, female Cyprus Native Hair Goats tended to have higher values for these traits. These findings were in agreement with those of Hilal et al [30], suggesting that sex must be an important factor of variation in body weight and morphological indices in indigenous Goat breeds.…”

Use of multivariate analysis as a tool in the morphological characterization of the main indigenous bovine ecotypes in northeastern Algeria

“…Multivariate discriminant analyses of morphological traits have been reported, in several previous morphometric studies, to be effective for a precise and objective discrimination of different population of cattle [22][23][24][25][26][27][28], goat [29][30][31][32][33][34], sheep [16,[35][36][37], horses [38] and camel [39].…”