Discriminant analysis on the morphometry of local goats breed in the western of Algeria

Belkhadem, Sara; Hakim, Tefiel; Belantar, I; Chahbar, Mohamed; Gaouar, Semir Bechir Suheil

doi:10.46325/gabj.v3i2.56

Cited by 4 publications

(3 citation statements)

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“…Various studies have shown high genetic diversity in African indigenous goat populations [21][22][23][24]. With increased temperatures and recurring droughts resulting from climate change, especially in the Horn of Africa, livestock adaptation to the environment is critical in production.…”

Section: Discussionmentioning

confidence: 99%

Mitochondrial DNA D-Loop Polymorphisms among the Galla Goats Reveals Multiple Maternal Origins with Implication on the Functional Diversity of the HSP70 Gene

Masila,

Ogada,

Ogali

et al. 2024

Genetics Research

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Despite much attention given to the history of goat evolution in Kenya, information on the origin, demographic history, dispersal route, and genetic diversity of Galla goats remains unclear. Here, we examined the genetic background, diversity, demographic history, and population genetic variation of Galla goats using mtDNA D-loop and HSP70 single-nucleotide polymorphism markers. The results revealed 90 segregating sites and 68 haplotypes in a 600-bp mtDNA D-loop sequence. The overall mean mitochondrial haplotype diversity was 0.993. The haplotype diversities ranged between 0.8939 ± 0.0777 and 1.0000 ± 0.0221 in all populations supporting high genetic diversity. Mitochondrial phylogenetic analysis revealed three Galla goat haplogroups (A, G, and D), supporting multiple maternal ancestries, of which haplogroup A was the most predominant. Analysis of molecular variance (AMOVA) showed considerable variation within populations at 94.39%, evidence of high genetic diversity. Bimodal mismatch distribution patterns were observed while most populations recorded negative results for Tajima and Fu’s Fs neutrality tests supporting population expansion. Genetic variation among populations was also confirmed using HSP70 gene fragment sequences, where six polymorphic sites which defined 21 haplotypes were discovered. Analysis of molecular variance revealed a significant FST index value of 0.134 and a high FIS index value of 0.746, an indication of inbreeding. This information will pave the way for conservation strategies and informed breeding to improve Galla or other goat breeds for climate-smart agriculture.

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Section: Discussionmentioning

confidence: 99%

Mitochondrial DNA D-Loop Polymorphisms among the Galla Goats Reveals Multiple Maternal Origins with Implication on the Functional Diversity of the HSP70 Gene

Masila,

Ogada,

Ogali

et al. 2024

Genetics Research

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“…In Algeria, the results of the study carried out by Kady et al,2013;Fantazi et al 2017;Belantar et al. 2018 andBelkhadem et al, 2019 intend to characterize goat farming in the mountainous regions of Kabylia on 94 breeders, confirm the extensive nature of the goat farming system in these regions, where it is noted that breeding and reproduction techniques are poorly mastered, in addition to the lack or absence of extension and structuring of the goat sector. In their comparative study of goat production systems in Andalusia and northern Morocco, (Benjelloun et al, 2015;Chentouf et al (2009) recorded semiextensive production systems based on grazing for half of the herd's needs.…”

Section: The Case Of North Africamentioning

confidence: 93%

Characterization of Goat Breeding Systems in Tunisia and In the Mediterranean Region

KHEMIRI¹,

ATTIA²,

DAREJ³

et al. 2022

Genet. Biodiv. J

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Despite its socio-economic role in Tunisia, the goat has been considered as an agent of natural resource degradation due to the excessive exploitation of forests and rangelands. Currently goat farms are beginning to regain interest in different Tunisian climatic conditions. Goat breeding is distributed throughout the territory, particularly in the mountain areas, natural rangelands and southern oases. The main systems encountered are (i) systems integrated into farms, (ii) livestock systems in mountainous and forest regions, (iii) oasis ecosystems and (iv) transhumant livestock systems. These farming modes are influenced by developments in agricultural systems in general, which change due to socio-economic development and are dependent on the availability of funding through national projects. In North African countries in general, transhumant pastoral systems dominate arid and semi-arid zones and are characterized by the seasonality of food resources, which are tightly influenced by rainfall. Extensive pastoral farming, mixed with sheep in regions with a dry climate and limited water resources, is the most widespread. Goat farming is a form of savings rather than an economic activity. Concerning the majority of Mediterranean countries; the existing farming systems reveal the importance of socio-territorial unity and available natural resources. The classification of goat farming systems is based on the resources used (natural rangelands or crop residues), the intensity of resource use (extensive or intensive), the types of livestock breeders (nomadic or sedentary), or the product generated and it's quality. The dominant systems in the European countries of the northern Mediterranean shore are farms oriented to the production of goat's milk intended for the manufacture of cheeses.

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“…Goat farming in Algeria is one of the most widespread agricultural activities in harsh regions. It allows their pastoral resources to be transformed into quality products; goat milk and goat meat are indeed interesting nutritional sources, but also contribute to the income of rural populations (Sahraouiet al, 2016;Fantaziet al, 2017;Belantaret al, 2018;Belkhadem et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Morphometric assessment and physico-chemical description of the milk of Arbia goat breed in province of Tlemcen

DJAOUT¹,

Belharfi

KOURICHI

et al. 2022

Genet. Biodiv. J

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As part of the study of the biodiversity of goat genetic resources, our study is based on a phenotypic approach of the Arbia breed at the level of the wilaya of Tlemcen on the one hand, and on a physicochemical analysis of the milk of this breed on the other hand. The baryometric approach addresses the characterization of the Arbia breed by the use of body measurements on 40 individuals (34 goats and 6 bucks), these measurements: HL, HW, EL, EW, WH, BH, SH, CP, HG, CD, SW, NL, BL, TBL, SIL, TL, PL, RW, IW and TW are respectively : 23.16 ± 1.53 cm, 11.51 ± 2.13 cm, 16.47 ± 2.40cm, 7.30 ± 0.63cm, 69.79 ± 4.46 cm, 71.40 ± 4.74 cm, 72.28 ± 4.67cm, 8.58 ± 1.11cm, 79.36 ± 6.44 cm, 28.71 ± 3.17cm, 16.65 ± 2.80cm, 23.18 ± 2.19cm, 72.57 ± 7.14cm, 109.96 ± 7.55cm, 64.24 ± 5.26 cm, 12.30 ± 2.42cm, 15.59 ± 1.36 cm, 15.59±1.36cm, 21.28 ± 1.84cm, 11.97 ± 1.81cm and 16.77 ± 2.75cm. This characterization revealed a phenotypic dimorphism between males and females, with very highly significant differences (p<0.001) for some of the body measurements used. The results of the PCA yielded 03 classes (n = 34, n = 05 and n = 01, respectively). While the performance aspect is carried out by physicochemical analyzes of 29 milk samples belonging to the individuals characterized, the analyzes F, D, C, S, P, L, T, S1 are respectively 56.90 ± 20, 24 g / l; 3.086 ± 3.62; 4.96 ± 0.41; 7.73 ± 1.78%; 27.35 ± 4.01 g / l; 4.21 ± 0.61g / 100ml; 19.18 ± 2.77C °; 0.70 ± 0.09%. These characteristics give good milk quality. This work encourages us to move forward towards the large-scale exploitation of goat herds with a focus on the steppe level where cattle experiencing production difficulties.

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Discriminant analysis on the morphometry of local goats breed in the western of Algeria

Cited by 4 publications

References 4 publications

Mitochondrial DNA D-Loop Polymorphisms among the Galla Goats Reveals Multiple Maternal Origins with Implication on the Functional Diversity of the HSP70 Gene

Mitochondrial DNA D-Loop Polymorphisms among the Galla Goats Reveals Multiple Maternal Origins with Implication on the Functional Diversity of the HSP70 Gene

Characterization of Goat Breeding Systems in Tunisia and In the Mediterranean Region

Morphometric assessment and physico-chemical description of the milk of Arbia goat breed in province of Tlemcen

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