Multivariate Analysis for Morphological Characteristics of N’Dama Cattle Breed in Two Agro-ecological Zones of Côte d’Ivoire

Abstract

Information on morphological characteristics is a prerequisite to sustainable breed improvement, utilization, and conservation. In this study, 108 N'Dama cattle cows from 11 farms of central and northwestern regions of Côte d'Ivoire were described using visual appreciation criteria and linear body measurements. The variables were studied using principal component analysis (PCA) and discriminant analysis. Results indicated that the most common N'Dama is fauve (83.33%) and it has straight back profile (69.44%) and lyre horn (74.07%). Agroecological zone has a significant (p˂0.01) effect on linear body measurements of N'Dama. The central region animals had higher head width (18.94 ± 2.18 cm), skull length (22.51 ± 2.18 cm), skull width (16.51 ± 1.72 cm), muzzle circumference (40.83 ± 2.58 cm), distance between horns (15 ± 1.90 cm), ear length (17.46 ± 2.57 cm), chest length (160.11 ± 15.8 cm), chest depth (71.55 ± 7.41 cm), and body length (125.13 ± 12.22cm) than those of northwestern region N'Dama. Thus, their respective values were: 15.41 ± European Scientific Journal January 2018 edition Vol.14, No.3 ISSN: 1857 -7881 (Print) e -ISSN 1857-7431 603 2.85 cm, 18.62 ± 2.6 cm, 12.44 ± 3.94 cm, 38.8 ± 2.61 cm, 13.72 ± 1.52 cm, 16.41 ± 1.61 cm, 143.84 ± 8.35 cm, 65.25 ± 4.1 cm, and 119.18 ± 12.38 cm. PCA revealed that N'Dama morphometric variability performed from the 9 variables (Lt, lt, Lc, lc, pt, hg, Pth, Lcp and Lf) were more associated with the first two factors. In regards to the discriminant analysis, these 9 variables distinguished the N'Dama significantly (p˂0.05) into two populations that corresponds with the two agroecological zones.

Morphometric diversity and phenotypic relationship among indigenous buffaloes of Banten, Indonesia

“…This result is different from de Melo et al 2018that found the highest correlation in shoulder width and chest width (0.74). Edouard et al (2018) also showed different results that buffalo head length and skull width had the highest correlation (0.847).…”

“…Variations in the interaction between genetic materials and the environment will result in phenotype variations. Agroecological zones have a significant effect on the differences in livestock body sizes (Edouard et al 2018). Buffaloes from Serang District have the largest average body size compared to other indigenous buffaloes from Banten.…”

“…Body analysis has been recorded as a practical approach for investigating the potential of indigenous livestock (de Rezende et al 2017). Data on buffalo body measurements can play an essential role in livestock preservation (Edouard et al 2018). A significant difference in buffalo morphometric diversity was reported by Vohra et al (2015), Dhillod et al (2017), de Melo et al (2018, and Paraguas et al (2018).…”

Keragaman Sifat Kualitatif pada Sapi Silangan PO dan Belgian Blue Menggunakan Analisis Komponen Utama

“…Keragaman sifat kualitatif pada sapi silangan PO-belgian blue adalah sebagai kombinasi interaksi gen dari kedua bangsa sapi yang disilangkan yaitu sapi PO dan belgian blue. Karakteristik keragaman sifat kualitatif yang diperoleh terutama dari hasil silangan PO-belgian blue sangat penting sebagai data dasar dalam pengembangan ke depan sebagaimana dinyatakan oleh Edouard et al (2018) bahwa karakteristik morfologi dapat digunakan dalam upaya meningkatkan, memanfaatkan, dan mempertahankan suatu bangsa sapi secara berkelanjutan.…”

“…Selain itu, karakteristik morfologi hasil silangan PO-Belgian Blue merupakan salah satu karakter penting untuk diamati sebagai hasil kombinasi dari dua bangsa sapi berbeda antara PO-belgian blue. Edouard et al (2018) menyatakan bahwa informasi tentang karakteristik morfologi merupakan salah satu syarat awal untuk peningkatan, pemanfaatan, dan mempertahan-kan suatu bangsa sapi secara berkelanjutan.…”