In this manner, as compared to multiallelic marker data, the SNP marker is much lower five SNP markers give rise to as much data as one microsatellite marker (Beuzen et al. SNPs are broader and generate potential markers close to the locus of more interest than other sorts of polymorphism. In practice, strong associations among genotypes of the PRLR gene and the traits of interest candidate this gene to be selective in Egyptian buffalo breeding for improving both productive and reproductive traits. Significant differences among PRLP9 genotypes (AA, AB, and BB) were displayed for all studied traits as well as among PRLR2 genotypes, except for CE, while PRLR4 genotypes significantly differed only in BW, WW, TMY, stillbirth, GL, and AFC. We also determined polymorphism of PRLR reflected in three loci: PRLR2, PRLR4, and PRLR9. A monomorphic pattern of the studied PRL 156 bp segment was recorded and absence of its polymorphism in buffalo was corroborated. Predicted breeding values were estimated and used in the association with detected genotypes. Weight (BW), weaning weight (WW), lactation period (LP), total milk yield (TMY), stillbirth, calving ease (CE), gestation length (GL), postpartum interval to pregnancy (PPIP), calving interval (CI), and age at first calving (AFC). Polymorphism (RFLP) techniques as well as to investigate their association with calf birth Nevertheless, further investigation is needed on the importance of the Del-90-bp variant as a DNA marker that could possibly serve as an additional selection criterion in breeding ewes with high productivity.Ī total of 266 records of buffalo raised in two experimental herds in Egypt were assessed to detect prolactin (PRL) and prolactin receptor (PRLR) genes’ polymorphism using PCR-Single Strand Conformational Polymorphism (SSCP) and PCR-Restricted Fragment Length The association analysis indicated that the Del-90-bp variant showed no significant association (P > 0.05) with litter size in AUW (n = 625), GQSFW (n = 75) and STH (n = 38) ewes. It is pertinent to note that the 90-bp deletion is not linked to the famous p.Q249R SNP in population of interest, except in high prolific Hu sheep. Genotyping outcomes revealed that the polymorphism was segregated in 45 of 52 breeds with varying frequencies (0.05–0.93). Herein, a total of 2313 various sheep individuals were used to detect the presence of the 90-bp deletion, among them the six breeds (Australian White (AUW), Small-Tail Han (STH), Guiqian semi-fine wool (GQSFW) sheep, etc.) were genotyped using PCR-based genotyping technology (n = 1636), and 47 breeds worldwide (including STH sheep) were genotyped via whole genome sequencing (WGS) method (n = 677). The purposes of this study were: to assess the genetic diversity of the 90-bp deletion polymorphism within the BMPRIB gene in 52 various sheep breeds to examine its linkage to the p.Q249R variant in the same gene, as well as to analyze its association with litter size. Bachelor's degree in agriculture or veterinary sciences.The study of the BMPRIB gene polymorphisms has become of great importance in sheep, because it provides critical genetic tools to improve reproductive efficiency in ewes.Examining animals to find illnesses or injuries.Injecting animal semen into female animals for breeding purposes.Attaching rubber collecting sheaths to the genitals of tethered bulls and stimulating the animal's organ to induce ejaculation.Adjusting controls to maintain building temperatures required for animals' health and safety.Ultimately, a top-notch animal breeder should be an effective communicator, have good organizational skills, and be physically fit. To be successful as an animal breeder, you should have knowledge of the animal breeding process, a passion for animal breeding, and knowledge of the potential risks of animal breeding. The responsibilities of the Animal Breeder include facilitating breedings, assisting with births, and administering medications and supplements. We are looking for an animal breeder to be responsible for selecting and breeding animals according to genealogy, characteristics, and offspring.
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