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Articles by A.N. Al-Owaimer
Total Records ( 5 ) for A.N. Al-Owaimer
  M.A. Abouheif , A.N. Al-Owaimer , T.M. Shafey , M.A. AlShaikh and R.S. Aljumaah
  The present investigation was carried out to examine the presence of Booroola FecB mutation gene in 124 selected prolific ewes from 6 flocks representing two Saudi Arabian local sheep breeds by forced PCR-RFLP method. Genomic DNA was extracted from the blood of 69 Najdi and 55 Naeimi matured ewes with litter size varied from 2.01-2.16 lambs per ewe lambing. Digestion of FecB gene 190 base pair with AvaII restriction enzyme resulted in non carrier 190 bp band wild type in all samples which revealed the absence of this mutation in the tested Najdi and Naeimi sheep breeds.
  A.M. El-Waziry , A.N. Al-Owaimer , G.M. Suliman , E.S. Hussein and M.A. Abouheif
  An experiment was conducted to evaluate the effects of castration on growth performance, carcass characteristics and meat quality of Ardhi goat kids. Twenty-four weaner male kids with an average age of 3 months and 14.1±0.91 kg body weight were assigned randomly to one of two equal groups and the kids in one group were castratoed using elastrator rings while the other group was left intact. All kids were fed ad libitum on high energy commercial pellets for 82 days and slaughtered. Castration had no significant effect on slaughter weight, feed intake, gain, feed: gain ratio, carcass weight and dressing percentage. Castrated goat kids had significantly (p<0.05) heavier liver weight, more body fat thickness and lighter head weight than comparable intact. There were no differences (p>0.05) between castrated and intact kids on all studied internal fat depot weights, chemical composition of the 9-11th rib joint and meat quality of the longissimus muscle except for the separable fat percentage from 9-11th rib joint which was higher (p<0.05) for castrated as compared to intact kids.
  S. Basmaeil , A.M. El-Waziry and A.N. Al-Owaimer
  The current study was conducted to investigate the breed effect on growth and digestibility coefficients in camel. Four young male camel breeds were used (Majaheem, Suffr, Sho’l and Wodoh) 6-9 months old with average weight 133.83±2.83 kg were used in 204 day trial. Animals were group fed of three animals in four replicates for each breed. A balanced energy/protein ration used to ensure that animals get their nutrient requirements using ad lib twice feeding system per day in order to satisfy their feeding intake. Average daily feed intake, average daily gain, feed conversion efficiency and digestibility coefficients were calculated. The results obtained from the growth trial indicated that the final weight of animals after 204 days was 292.33±6.65, 278.17±11.36, 284.35±21.89 and 270.35±10.69 kg for Majaheem, Wodoh, Suffr and Sho’l, respectively. The average daily gain was 770, 698, 734 and 690 g for Majaheem, Wodoh, Suffr and Sho’l, respectively. Feed intake was 4.73±0.10, 4.68±0.10, 5.24±0.84 and 4.53±0.26 kg for Majaheem, Wodoh, Suffr and Sho’l, respectively. Majaheem breed have the best feed conversion efficiency compared to other breeds.
  A.M. El-Waziry , A.N. Al-Owaimer , S. Basmaeil , H. Metwally and G.M. Suliman
  The present study was conducted to investigate the carcass characteristics and meat quality in four Saudi camel breeds. Four young male camel breeds were used (Majaheem, Suffr, Sho’l and Wodoh) 6-9 months old with average weight 133.83±2.83 kg. Animals were group fed of three animals in four replicates for each breed. A balanced energy/protein ration was used to ensure that animals get their nutrient requirements using ad lib twice feeding system. When animals slaughtered, carcass characteristics were measured to evaluate meat quality. The results obtained from growth trial indicated that the slaughter weight of animals after 204 days was 292.33±6.65, 278.17±11.36, 284.35±21.89 and 270.35±10.69 kg for Majaheem, Wodoh, Suffr and Sho’l, respectively. At slaughter, the hot carcass weight was 176.38, 164.78, 170.21 and 164.9 kg for Majaheem, Wodoh, Suffr and Sho’l, respectively. Dressing percentage was 59.37, 57.88, 58.76 and 60.00% for Majaheem, Wodoh, Suffr and Sho’l, respectively. There were no any significant differences between breeds in most parts of the carcass muscle area especially color of Longissimus dorsi muscle, shear force and chemical analysis of meat.
  A.N. Al-Owaimer , A.A. Swelum , S.H. Yaqoob , E.S. Hussein and M.A. Abouheif
  This study aims to investigate the effect of carrying one copy of the FecB allele on body weight of Naeimi and Naeimi crossbred lambs at birth, weaning, 75 and 100 days of age. A total of 107 lambs representing 24 purebred Naeimi (NN) and 83 Naeimi-Booroola carrier crossbred (NB) were examined. The results showed that 43 lambs out of the 83 NB lambs were heterozygous carrier of the FecB allele whereas the other NB lambs were homozygous non-carrier of the wild allele. The frequency of the B+ genotype was 0.52 among all born NB lambs. The results also revealed that mean body weights of NN lambs were heavier (p<0.05) than that of NB lambs at all studied ages. Body weights of NB++ were heavier (p<0.05) than NBB+ lambs at birth, weaning and 75 days of age, the differences in weight between NB++ and NBB+ at 100 days of age was not significant (p>0.05). The influence of type of birth on live body weight at birth and weaning age was significant (p<0.05) but these differences between single and twin born lambs and between twin and triplet born lambs disappeared (p>0.05) at 75 and 100 days of age. No differences (p>0.05) were noted in birth and weaning weights of male and female lambs, however, the male lambs being 7.2% heavier (p<0.05) than the female lambs at 75 and 100 days of age.
 
 
 
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