المنشورات و المؤلفات

ABSTRACT We detected genetic variations and single nucleotide polymorphisms (SNPs) of tyrosinase gene (Tyr) among seven camel populations in Saudi Arabia. Exon 1 of TYR was amplified from 166 DNA samples representing six indigenous camel populations...
   Abstract In Saudi Arabia, the sheep production systems are mainly managed under farmer production systems, so their genetic management has led to increased homozygosity and hence productivity loss. The aim of this study was to genetically...
ABSTRACT The present study was conducted to know the genetic diversity of three Saudi sheep populations; Naeimi (NM), Herri (H) and Najdi (NJ). Genomic DNA was extracted from 156 animals of sheep comprising 47 Naeimi, 47 Herri and 62 Najdi breeds...
 ABSTRACT. The aim of the study was to assess the effect of feed restriction levels followed by realimentation on long bone growth and concentrations of growth hormone, osteocalcin, bone-specific alkaline phosphatase (ALP), cal­cium (Ca) and...
Objective: Keywords: MC1R, OviThis study was designed to characterize the DNA polymorphisms of the melanocortin-1 receptor (MC1R) gene in indigenous Saudi Arabian sheep breeds exhibiting different color coats, along with individuals of the Sawaknee...
The present study was conducted to assess the genetic diversity and population genetic structure of three sheep populations namely; Sawakni (SW), Berberi (BR) and Najdi (NJ), in Saudi Arabia, utilizing 45, 18 and 31 individual blood DNA extractions...
The objective of this study was to evaluate the effect of source of roughage and crude protein level on feeding performance and carcass traits of Majaheem camels (Camelus dromedarius). Forty-eight male calf-camels weighing 203.3±5.1 kg were equally...
The objective of this study was to evaluate the effect of source of roughage and crude protein level on feeding performance and carcass traits of Majaheem camels (Camelus dromedarius). Forty-eight male calf-camels weighing 203.3±5.1 kg were equally...
 The genetic diversity and population genetic structure of sheep (Ovis aries) are poorly documented in Saudi Arabia. The present study was conducted to address some of these genetic aspects using three Saudi sheep populations namely; Naeimi (NM),...
   The main role of Ghrelin hormone is the regulation of feed intake, body weight and gastrointestinal motility. It stimulates appetite by acting on the hypothalamic arcuate nucleus. Ghrelin is orexigenic that transmits a hunger signal from the...
A spermatic granuloma is a chronic inflammatory reaction produced in response to extravasated sperm within the intertubular connective tissue. The present study investigates the possible toxic effects of water extract of Heliotropium bacciferum on...
  Growth hormone (GH) is a promising candidate gene marker for selecting production traits in livestock animals. The objective of the present study was to determine the polymorphism in exon 3, intron 3 and exon 4 of GH gene in 39 Najdi and 38 Naeimi...
relationships between egg measurements [egg weight (EGWT), egg width (EGWD), egg shape index (EGSI), egg volume (EGV) and egg density (EGD)], and egg components [eggshell (SWT), yolk (YWT) and albumen (AWT)] were investigated in laying hens with 32...
relationships between egg measurements [egg weight (EGWT), egg width (EGWD), egg shape index (EGSI), egg volume (EGV) and egg density (EGD)], and egg components [eggshell (SWT), yolk (YWT) and albumen (AWT)] were investigated in laying hens with 32...
A spermatic granuloma is a chronic inflammatory reaction produced in response to extravasated sperm within the intertubular connective tissue. The present study investigates the possible toxic effects of water extract of Heliotropium bacciferum on...
Prolactin (PRL) hormone plays an important role in many biological processes in animals and humans, such as mammogenesis, lactogenesis and galactopoiesis. PRL is a single-chain protein of 199 amino acids (AA) in human, sheep, pigs and cows. The...
Twenty-four Holstein bull calves were used in this study. Eight calves per treatment were assigned randomly to one of three treatments: 1) control, 50% whole pasteurized milk added to 50% milk replacer; 2) whole pasteurized milk and milk replacer...
The objective of the present study was to determine the polymorphism in the leptin (LEP) and prolactin (PRL) genes in Herri (n=35) sheep breed of Saudi Arabia. No single nucleotide polymorphism (SNP) was detected in the 156-bp PCR amplicon of PRL...
The aims of this study were to characterize variations in LEP exon 3 region in Najdi sheep and assess their associations with milk and udder traits. A PCR amplicon of 471 bp was amplified and sequenced. Aligned DNA sequences showed two non-...
Prolactin (PRL) hormone plays an important role in many biological processesin animals and humans, such as mammogenesis, lactogenesis and galactopoiesis. In dairy cattle, the PRL gene is a potential quantitative trait locus that is used to evaluate...
The effects of flaxseed meal (FSM) feeding on the performance (weight gain, feed intake and feed conversion ratio), carcass characteristics and pectoral muscles fillets [major (PMJ) and minor (PMN)] quality [shear force, PH and cooking water loss...
The effects of in ovo amino acid administration on hatchability traits and post-hatch performance were studied using eggs from a meat-type breeder flock (Ross) at 38 weeks of age. On day 15 of incubation, five treatments were applied, consisting of...
Measurements of 174 eggs from meat-type breeder flock (Ross) at 36 weeks of age were used to study the problem of multicollinearity (MC) instability in the estimation of egg components of yolk weight (YKWT), albumen weight (ALBWT) and eggshell...
   Leptin hormone plays an important role in many biological processes in animals and humans such as appetite, immune system and reproduction. We evaluated the genetic variability in the leptin (LEP) exon 3 gene in Saudi indigenous Najdi (n=41) and...
Abstract Sixteen microsatellite markers were used to investigate the genetic polymorphism in Majaheem population of camels in the Kingdom of Saudi Arabia. Genomic DNA was extracted from hair roots from 40 unrelated Majaheem camels. Out of these 16...
The genetic diversity and population genetic structure of dromedary camels (Camelus dromedarius) are poorly documented in Saudi Arabia. The present study was conducted to address some of these genetics using four Saudi Arabian camel populations...