جستجوی مقالات مرتبط با کلیدواژه « بز عدنی » در نشریات گروه « علوم دام »

Ziziphus mauritiana due to having a significant amount of protein and energy has been introduced as a part of fodder for light livestock, especially in conditions of food restrictions. This experiment was conducted to evaluate the effect of Indian Ziziphus (Ziziphus mauritiana) leaves feeding on growth performance, hematology and blood biochemical parameters of Adani fattening goat kids.

In this study, 16 Adani male goat kids with an average age of 180 ± 11 days and an average weight of 17.28 ± 1.32 kg were used in a completely randomized design using 2 treatments and 8 replications. At first, based on regular random method, samples were taken from Ziziphus mauritiana leaves. In order to mix Ziziphus mauritiana leaves with other components of the ration, after drying in the sun, Ziziphus mauritiana leaves were cut into small pieces (2-3 cm). Experimental treatments include: 1) basal diet without Ziziphus mauritiana leaves (control diet), 2) basal diet with 20% Ziziphus mauritiana leaves (based on the percentage of dry matter of the ration). In the experimental diet, Ziziphus mauritiana leaves replaced with 20% of alfalfa in the control diet. In order to acclimatize the animals, a period of 15 days was considered. Goats were kept in individual stalls and fed experimental diets for 75 days. During the experiment, the feed consumed two times a day according to appetite and water was freely available to the Goats. Weighing of the goat kids was done weekly and before the morning feed, and the amount of feed given and remaining was weighed daily. On days 0, 35 and 75, blood samples were taken from the the jugular vein of goats kids and the blood parameters included RBC, WBC, PCV, MCV, MCH, MCHC, HGB, platelet, total protein, albumin, globulin, cholesterol, LDL, HDL. , urea, glucose, calcium and phosphorus were measured.

Investigating the growth performance did not show a significant effect between the final weight, daily weight gain, feed consumption and feed conversion ratio of the experimental treatments (P<0.05). The results of investigation of haematological parameters showed significant changes in the average concentration of white blood cells (WBC), the average volume of red blood cells (MCV) and platelets at the 35th day, as well as the average concentration of white blood cells and platelets at the 75th day of the experiment (P<0.05). The interaction effect of the feeding level of Ziziphus mauritiana leaves and the sampling time on the blood parameters of Adani fattening goat kids had only a significant effect on the average concentration of white blood cells (P<0.05). Investigation of blood biochemical parameters only showed that feeding of Ziziphus mauritiana leaves had significant effect on the average concentration of calcium at the 35th day and the average concentration of protein at the 75th day of the experiment (P<0.05). The interaction effect of the feeding level the Ziziphus mauritiana leaves and sampling time on the blood biochemical parameters of Adani goat kids had significant effect only on the average concentration of protein of the treatments (P<0.05).

Finally, the results of this study showed that Ziziphus mauritiana leaves can be used up to 20% of the forage consumption of Adni fattening goat kids without negative effect on haematological and blood biochemical parameters.

In the present study, blood samples were collected from 97 Adani goat from Bushehr province in order to identify the polymorphism in the exon II region of MHC-DRB1 gene (Major Histocompatibility Complex) and also, its association with growth traits (birth weight and 3 months weight). Genomic DNA was extracted from blood samples. A 279-bp fragment was amplified using polymerase chain reaction (PCR). Eventually, the PCR products were digested by RasI enzyme. The results showed that there were 4 types of alleles A, B, C and D in this locus with the frequencies of %51, %26.8, %13.4 and %8.8, respectively. Five genotypes including AA, AB, BB, AC and AD were identified with the frequency of %14.432, %28.866, %12.371, %26.80 and %17.525, respectively. The results indicated polymorphism and high heterozygosity in the population under study. Also, the number of effective alleles, Shannon index, expected and observed heterozygosity for this site was calculated at 2.794, 1.179, 0.642 and 0.732, respectively. Moreover, the chi-square (χ2) test showed that population was not in Hardy-Weinberg equilibrium. The ANOVA results showed that the effect of different genotypes on birth weight was significant (p<0.05), but it was not significant on 3 MW (p<0.05). Furthermore, other traits such as dam age, sex, season and birth type effects were not significant on the growth traits (p<0.05). The highest birth weight was found for heterozygous AC and AD genotypes (3.05 and 3.02 Kg, respectively), and the lowest birth weight was related to pure AA genotype (1.75 Kg). It seems that selecting AC and AD genotypes can be expected to increase birth weight in Adani goat. Also, we expect that this gene can act as a candidate gene for genetic improvement of some growth traits in goat breeding programs.

Identification of genetic characteristics is an important factor for preservation of species life. The aim of this study was to identify the genetic characteristics of the Adani goat populations based on the cytochrome b (Cyt b) gene and to detec its phylogenetic relationships with the domestic and wild goat species using NCBI database. Blood samples were taken from 12 Adani goat and subsequently DNA was extracted using Sinaclon kit. The target area (892 base pair) was proliferated by specific primers using polymerase chain reaction (PCR) method and then sequenced. By analyzing the sequences, 5 haplotypes were identified based on 12 polymorphic sites. All mutation sites were transition and nonsense. The haplotype and nucleotide diversity and the average of a different nucleotide based on Cyt b region were estimated 0.57, 0.002 and 2.273, respectively. These results indicated high genetic variation in Adani goat. Using the NJ phylogenetic test results indicated that the Adani goat was located in the C. hircus branch and C. Aegagrus was in closer to them in compare with C. ibex. The placement of Capra hircus's goats and Adani goats in a similar branch is rational because of the dispersion of various races of this species throughout the world.

Maintaining genomic diversity in goat populations in different parts of Iran is essential for breeding programs, increasing production, survival, resistance to diseases, and various environmental changing conditions. The aim of the present study was to determine the sequence of HVR1 from the mitochondrial genome of Iranian native goats including Sistani, Pakistani, Black and Lorry ecotypes (each of 4 heads), examine the probable variation in these populations, and plotting their phylogen relationship in comparison with some animal species. Total DNA extraction was performed using phenol-chloroform method. The extracted DNA was used as template for proliferation of HVR1 region of mitochondrial genome was used and the obtained bands were sequenced by Sanger method. The nucleotide sequences with 30 sequences from the same region of the mitochondrial genome related to other animal species derived from the National Center for Biotechnology Information (NCBI) were used for genetic analysis and phylogenetic tree mapping. The average of haplotype diversity and nucleotide diversity among species were 0.994 and 0.12891, and, in the ecotypes were 1 and 0.09299, respectively. The numerical value of the replacement rate of dn/ds for the studied ecotypes and other species was calculated at 1.17 and 1.12, respectively, which indicates a positive selection in the process of evolution of this gene. The results of phylogenic tree of nucleotide sequence of HVR1 region were estimated from two major branches and 7 subspaces. Among the studied species, goat ecotypes were similar to sheep species. The genetic and phylogenic analysis of the studied species indicates the distinction and evolutionary path of each species and the HVR1 region can lead to the proper grouping of the species and sub-species that are split from them.

Increasing the profitability of each production unit, is the most important way to increase its competitiveness in all fields, including animal husbandry. The first step in designing livestock breeding programs is to decide on appropriate breeding goals and the Lack of precise breeding goal determination is the most important factor behind the inadequacy of livestock breeding programs. Therefore, the determination of the breeding objectives and economic values of the important traits in the Adani goat, which is one of the important livestock of the Persian Gulf coastal strip, will greatly help the breeding of this animal.
In this study, a deterministic static model which assumes no variation among animals for the important traits was used for calculation of economic values. In order to estimate the required parameters (demographic, productive, reproductive, managerial, and economic), for a whole year of production (from the 1st of September 2016 to the 1st of September 2017), seven flocks of Adani goats with 920 does were directly recorded. The economic values of the traits were calculated by generating profit equations and changing the traits by one percent or one unit, while the mean of other traits was constant at the average of the population. The economic weight of the traits was calculated for a genetic standard deviation of the increase in the corresponding trait while the other traits were maintained at a constant average. In order to correct comparison the economic values of the traits, their relative importance was determined.
The results of this study showed that the highest income was the share of kid sales and milk and the largest share of the cost was the management and labor contribution. The traits that were included in the objective goals of the Adani goat including kidding rate, number of kidding per year, litter size, the weight of the kid sales at 12 months, conception rate, survival of the kid to weaning, doe survival, survival from weaning to sales, milk production, mature doe weight, and twining rate were 22.7, 17.5, 12.8, 12.1, 10.1, 9.8, 9, 4.6, 1.9, -0.7 and 0.3, respectively.
Reproduction, longevity and production traits are the most important trait in Adani goats, respectively. According to the breeding conditions of this animal, number of kidding per year, kidding rate, litter size, the weight of the kid sales at 12 months, conception rate, survival of the kid to weaning, doe survival, kid survival from weaning to sales and milk production are the most important traits, respectively and must be regarded more in breeding programs for Adani Goats.