Due to the absence of the ethnic data and studies of racial characterizations of this species in Algeria, which is an endangered species, we contributed to the phenotypical study of donkey population in the area of Tlemcen. A manpower of 61 adult asses, distributed on the level of two areas from where 11 body measurements and 06 phenotypical characters were retained for this study. Measurements LTC, HG, TP, LH, LE, PC, LoT, LoO, LQ, LaT and TM are respectively of 157,26±12,88; 116,16±7,23; 124,26±7,03; 37,15±3,21; 27,07±3,27; 17,50±1,86; 52,39±4,06; 30,15±2,19; 41,42±5,76; 23,01±2,06 and 46,24±4,16cm. the sex does not present any significant effect on studied body measurements (p>0,05). A factorial analysis of the multiple correspondences was carried out on the phenotypical characteristics, and it revealed two principal components which constitute 47,62% and 41,39% of total inertia, percentages respectively related to the color of the dress, the head, the members, the hairs, the muzzle and the belly .This analysis made it possible to establish remarkable phenotypical differences which have implications to take into account in the program of characterization and conservation of the species.

The Barbe horse occupies a prominent place in the history, culture and traditions of Algeria; it is at the base of the evolution of the main equine breeds in Maghreb. Nineteen (19) measurements were made on 58 pure and presumed Barbe horses (uncertain origins), all aged three years and over. From these, six body indices were calculated and live weight estimated. The cephalic profile survey was also performed. Statistical analyzes were carried out on these different measurements by software R 2.15.2 and XLSTAT2016. The statistical tests used were of the descriptive and analytical type including among others, the calculation of means, standard deviation, and principal componentanalysis (PCA) and ascending hierarchical classification (CAH). We also estimated genetic diversity by Shannon and Weaver index. They find that the Algerian Barbe horse is a eumetric, mediolinear horse with a body index of 0.955, (squared horse), with a median size of (152.5) cm, a chest of (175.5) cm and a posterior(19.8) cm and anterior (20.6) cm canon. It has a slightly hooked convex cephalic profile and a predominantly chestnut robe. Its characteristics make the horse Barbe of Algeria conform to the standard as defined by the world organization of the horse Barbe.

Abstract. Amine BME, Naima B, Mohammed B, Abdelkader AA, Youssouf HH, Mohammed P, Suheill GSB. 2020. Molecular characterization of eight horse breeds in Algeria using microsatellite markers.  Biodiversitas 21: 4107-4115. The Algerian horse population Bar, Origin Barb unknown, Arabian-Barb, Arabian, Thoroughbred (Pur sang); French Trotter, Algerian saddle, and Saddle are under a significant loss of genetic variability. This should be evaluated before any breed conservation and management program. For this purpose, genetic analyzes of diversity and differentiation were carried out on eight breeds horses reared in Algeria with 17 microsatellites. All microsatellite markers were highly polymorphic in all Breeds. A total of 170 alleles from 17 microsatellite loci were detected in 279 horses. The average number of alleles per locus was highest in Arabian-Barb horses (7.88) and lowest in Saddle breed (4.94). The observed heterozygosity interbreeds ranged from 0.685 to 0.625 for Barb and Saddle, while the expected heterozygosity was ranged from 0.746 to 0.678 for Arabian-Barb and Algerian Saddle respectively, the Ho value is lower than that of  He value. Genetic diversity between breeds was significant, based on Fst. Three different approaches to assess genetic relationships have been applied; namely, genetic distances, factorial correspondence analysis, and admixture analysis have shown that a significant amount of genetic variation is maintained in populations of native horses and other breeds: the Barb, Arabian-Barb, Barb (Oi). Algerian Saddle and Saddle breeds appear to be the most genetically related and support that there are crosses between these two breeds.

The objective of this work is to carry out a comparative study through the main factors (individual, breed, age and region) having a direct effect or by interaction on the physicochemical parameters of th milk produced by 3 types of cows, local (BLL), imported (BLI) and crossed (BLC) which are reared b the same extensive farming system in the western region of Algeria. A total of 88 dairy cows, 55 BLLs, 17 BLIs and 16 BLCs selected at the beginning of lactation were followed regularly for a period of three months (March to May). At the same time, milk samples are taken for each cow and then they are sent for analysis at the laboratory. The physicochemical parameters of milk analyzed as well as milk production showed a very varied degree of influence with respect to breed and age.

This work is carried out a study of the typology of local cattle breeding in the Wilaya of Tlemcen, a phenotypic characterization of two local breeds Guelmoise and Tlemcenienne with a preparation of biobank of DNA concerning the latter and relating to 40 blood samples from unrelated animals. The results of the typology (supported by a questionnaire) showed that there is an leaving of the breeding of local breeds in favor of imported breeds are that the local breed is raised exclusively in e extensive system and conditions breeding are really precarious. Quantitative measures (age, chest circumference, height at withers, sacral height, diagonal length, length of head, length of ears, length of horns, length of tail, milk yield) and qualitative (color of the dress, regions) submitted to statistical analyzes show that the two breeds are almost identical, and that there are introductions of exogenous breeds especially in the Tlemcenienne breed, this was confirmed when calculating the diversity index, which showed that the Tlemcenienne breed is more diversified  (H '= 0.31) given the exchanges practiced by breeders and the anarchic crossbreeding of animals, while that of Guelmoise equal to H' = 0.28. This very important preliminary work deserves to be pursued by a molecular characterization of more populations and a wider geographical area.