مقاله Single strand conformation polymorphisms (SSCPs) in the 5″- flanking region of Lactoferrin gene and its association with milk production traits and somatic cell score in Holstein cattle

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 مقاله Single strand conformation polymorphisms (SSCPs) in the 5″- flanking region of Lactoferrin gene and its association with milk production traits and somatic cell score in Holstein cattle دارای ۱۲ صفحه می باشد و دارای تنظیمات در microsoft word می باشد و آماده پرینت یا چاپ است

فایل ورد مقاله Single strand conformation polymorphisms (SSCPs) in the 5″- flanking region of Lactoferrin gene and its association with milk production traits and somatic cell score in Holstein cattle  کاملا فرمت بندی و تنظیم شده در استاندارد دانشگاه  و مراکز دولتی می باشد.

توجه : در صورت  مشاهده  بهم ریختگی احتمالی در متون زیر ،دلیل ان کپی کردن این مطالب از داخل فایل ورد می باشد و در فایل اصلی مقاله Single strand conformation polymorphisms (SSCPs) in the 5″- flanking region of Lactoferrin gene and its association with milk production traits and somatic cell score in Holstein cattle،به هیچ وجه بهم ریختگی وجود ندارد

بخشی از متن مقاله Single strand conformation polymorphisms (SSCPs) in the 5″- flanking region of Lactoferrin gene and its association with milk production traits and somatic cell score in Holstein cattle :

سال انتشار : ۲۰۱۴

تعداد صفحات :۱۲

Lactoferrin (Lf) is a bioactive protein present in all external secretions such as milk that plays important role in the innate host defense. Therefore, the Lf has a major role in bovine mammary gland defense during mastitis. In this study, 5’-flanking region of bovine Lf gene containing three single nucleotide polymorphisms (SNPs) at positions −602 (T/G), −600 (A/G) and -586 (T/C) were screened using PCR-SSCP method. Three distinct SSCP patterns, representing 3 different haplotypes (A, B and C), were identified. The frequencies of A, B, and C haplotypes for amplified fragment were 0.43, 0.39 and 0.18, respectively. An association study was applied with data from milk production traits and somatic cell score (SCS). Statistically significant differences were found between various haplotypes at the amplified fragment and fat percentage (P<0.05). However, the haplotypes also tend to associate with protein percentage (P=0.06) and milk yield (P=0.08). No significant difference was observed between combined genotypes and SCS. Therefore, the haplotypes identified in the 5″- flanking region of bovine Lf gene can serve as potential candidate genetic markers for marker assisted selection in cattle.