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    Determination of the reproductive characteristics of Saanen goats using estrus synchronization and the growth performances of kids
    (Ankara Univ Press, 2021) Erdem, Evren; Ozbaser, Fatma Tulin; Atasoy, Fatih
    This study aimed to determine the reproductive characteristics of Saanen goats of Australian origin using an estrus synchronization program with hormones (MPA and PMSG) in two different mating periods (Period I and Period II) and to investigate the survival rates and growth performances of kids. According to the results of the research, it was determined that pregnancy rate and litter size were higher in the mating period I (87% and 2.16) compared to mating period II (80.5% and 2.03), and it is hypothesized that this situation is related to the length of dry period of the goats. Although the mortality rate (P<0.001), and body weight (P<0.05) at birth were affected by kidding season, the survival rate and their body weights of the Saanen-kids at days 30, 60, 90, and 120 were not affected by the kidding season (P>0.05). These results indicate that the kidding season should be an environmental factor to be taken into account when planning the production. In addition to this, it is important to optimize the care and management conditions, especially during the kidding season, due to the high multiple birth types for the estrus synchronization program in Saanen goats.
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    Öğe
    Evaluation of some morphological and genetic characteristics of Catalburun dog breed
    (Tubitak Scientific & Technological Research Council Turkey, 2021) Ozarslan, Bora; Atasoy, Fatih; Erdogan, Metin; Ozkul, Banu Yuceer; Ozbaser, Fatma Tulin
    Catalburun (Fork-nose) dogs are the members of Turkeys indigenous gene pool. Although there are some studies on phenotypic identification of this breed, there is no study on genetic characterization. This study aimed to define the detailed morphological and genetic characteristics of this breed. For this purpose, initially, some morphological traits in 100 Catalburun dogs were measured. Furthermore, the blood samples were taken from a total of 62 animals to identify genetic characteristics. The mean live weight was found as 20.20 kg, and the means of withers height, rump height and body length were measured as 48.2, 49.1 and 54.1 cm, respectively. In the microsatellite analysis, the mean of inbreeding coefficient (F-IS) was calculated as 0.048. The observed (Ho) and the expected heterozygosity (He) values were determined as 0.743 +/- 0.12 and 0.744 +/- 0.11, respectively. Mitochondrial DNA (mtDNA) sequence analyses revealed that AHT 137 loci (12 alleles) and REN247M2 loci (4 alleles) were found to have the highest and the lowest frequencies. The highest frequencies in A and B haplogroups were found to be A18 (14.52%) and B1 (59.68%) haplotypes, respectively. The factorial similarity analysis denoted that the examined dogs may be grouped in closely-related two parent lines. Although the heterozygosity values were found to be relatively high, conversely, the mutation or nucleotide diversities were found to be low. This is the first study to comprehensively describe the genomic diversity and population structure of the Catalburun breed. Special attentions should be taken to the protection of this breed as soon as possible.