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Articles by Muhammad Anwar
Total Records ( 7 ) for Muhammad Anwar
  Saeed Ahmad Shah Chishti , Muhammad Akbar , Muhammad Aslam and Muhammad Anwar
  Sixteen early maturing genotypes of groundnut showed significant variation for all characters studied expect 100 kernal weight. Phenotypic Coefficient of Variation (PCV) was higher than Genotypic Coefficient of Variation (GCV) for all the characters. High heritabilities (h2) for days taken to flowering and maturity were found very high. At genotypic level all the traits under study except days taken to maturity exhibited significant positive association with pod yield while it showed significantly negative correlation. Sound Mature Kernal (SMK) %age by weight longwith shelling %age and No of pods per plant had fairly high h2, high Genetic Advance (G.A.), significantly positive genotypic correlation and positive direct effect on pod yield. Hence selection for these traits would be effective in improving pod yield and oil contents in early maturing genotypes.
  Shahid Iqbal , Tariq Mahmood , Tahira , Muhammad Ali , Muhammad Anwar and Muhammad Sarwar
  Interrelationships between yield and its components were determined by genotypic correlation and path coefficient analysis in ten soybean varieties. The results indicated that seed yield plant–1 was positively and significantly associated with all parameters studied. The results also showed that pods plant–1 has maximum positive direct effect on yield plant–1. It was followed by 100 seed weight and seeds pod–1. Plant height had negative direct effect on yield plant–1. It was concluded that pods plant–1, seeds pod-` and 100 seed weight were the main yield components.
  Mohammad Yasin Amer , Sohail Hassan Khan , Muhammad Ismail Abbass , Ghulam Abbass , Naveed Iftikhar , Muhammad Anwar , Muhammad Amin and Muhammad Yaqoob Anjum
  A total of 1600 commercial strain (Nick Chick) Single Comb White Leghorn hens, 90 week of age, were used in this study to determine the effects of different induced molting programs on production and immune parameters. The hens were randomly divided into four treatment groups (three experimental and one control) of 400 hens each. The hens in the first treatment group were fed a layer ration containing 4 g/kg diet of C for 5 d and received a reduced photoperiod of 8 h/d for 5 d (Al2O3 group). In the second group, feed was withdrawn for 10 d, the photoperiod was reduced to 8 h/d and oyster shell and water were provided for ad libitum consumption. At Day 11, hens consumed corn and oyster shell ad libitum until Day 30 and at Day 31, hens was returned to a full feed layer ration and received 16 h of light/d (California group). In the third treatment, birds were provided feed and water ad libitum for one day with 8 h light. During day 2-3, feed and water were withdrawn. On 4th day water was provided but no feed was given. On 5 to 49 days, birds were offered feed 27 g each till egg production was reached upto 1%. Water was provided ad libitum. Full feed at the rate of 112 g each bird was offered from day 50 onward. Birds received 8 h of light till 49 days which was increased to 16 h on 50th day onwards (Washington group). The last group served as control. Body weight, egg production, egg size, internal egg quality, shell weight and mortality were determined. Total circulating leukocytes and differential leukocyte counts were also measured. The results demonstrated that induced molting significantly increased egg production from 65 to 75 to 81%, Haugh units from 80.1 to 85.6 to 87.0 and shell weight from 5.4 g to 6.3 to 6.5 g when compared to control. The total circulating leukocytes was significantly lower in molted hens than in control hens. Differential leukocyte counts were affected by all induced molting programs and the heterophil to lymphocyte ratio was significantly increased, reaching 0.60, whereas that of controls was only 0.19.
  Muhammad Jameel Ahmad Khan , Sohail Hassan Khan , Salma Naz , Syeda Surriya Gilani , Jamila Shafi , Farooq Hassan , Mehdi Hassan and Muhammad Anwar
  A total of 1800 Fayoumi chicks, 28 day-old of age, were used in this study to determine the effects of two levels of Aloe vera leaves on performance and immune parameters. Basal Fayoumi’s diet supplementation with 0, 1.0 or 2.0% Aloe vera leaves was investigated. The chicks were randomly divided into 9 separate floor pens each comprising 200 chicks and three pens (replicates) per treatment group in a completely randomized design. At the end of study, birds fed diets supplemented with 1.0 or 2.0% Aloe vera leaves had greater body weight gain, better feed intake and feed efficiency than those fed diets without Aloe vera leaves. Low morality was recorded in treatment groups. The geometric means HI titres of birds fed on diets containing Aloe vera leaves were higher than those fed on control. Aloe vera leaves included in the Fayoumi’s diet upto 1.0 or 2.0% did not have any deleterious effects on their performance and immunity.
  Muhammad Anwar and Victor Lee
  The biomimetic synthesis of the marine sponge alkaloid Pyrinadine A, based on the oxidative dimerisation of hydroxylamine, is reported.
  Muhammad ANWAR , Sayed Murtaza Hassan ANDRABI , Abid MEHMOOD and Nemat ULLAH
  The study was conducted to evaluate the quality of cryopreserved buffalo and zebu semen thawed and held at low temperature. Progressive motility of frozen semen thawed in a 37 °C water bath for 45 s (control) was compared with that of semen held in ice water (3-5 °C) for 180 min. Semen collected from 3 buffalo and 2 zebu bulls was used for this purpose over 3 weeks (replicates). Fertility was compared after performing 28 inseminations with buffalo semen and 100 inseminations with zebu semen either after control thawing or thawing straws in ice water for 30-60 min. Progressive motility of buffalo and zebu semen thawed and held in ice water for 30 and 90 min, respectively, was not different from that of semen thawed at 37 °C. The conception rate of buffaloes and zebu cows (69.2% and 60.0%) inseminated after control thawing was higher than that of animals inseminated with semen kept in ice water for 30-60 min (53.3% and 47.7%). However, the difference between conception rates after insemination with the 2 thawing methods was not significant in either case. It is concluded that there was a trend for decreased fertility for both buffalo and zebu semen when inseminations were performed after thawing and holding semen for 30-60 min in ice water.
  Abid MEHMOOD , Muhammad ANWAR , Sayed Murtaza Hassan ANDRABI , Muhammad AFZAL and Syed Muhammad Saqlan NAQVI
  Conditions for in vitro maturation (IVM) of primary oocytes without conventionally used fetal calf serum and hormones were optimized in order to reduce the cost of laboratory produced buffalo embryos. Comparisons were made between oocyte recovery methods (aspiration vs. slicing) and IVM in medium 199 (static culture method vs. flux culture method) supplemented with 4-5 x 106 granulosa cells mL-1 that contained either estrus buffalo serum (EBS) or fetal calf serum (FCS). Recovery methods were compared according to yield, i.e. cumulus oocyte complexes per ovary (COCs/ovary), the expansion rate (% of COCs that expanded), and nuclear maturation rate (% of germinal vesicle breakdown [GVBD]), following IVM for 22-24 h. In vitro maturation methods (static culture with EBS or FCS and Flux culture with EBS or FCS) were compared on the basis of the expansion rate and in vitro fertilization rate (cleavage rate). COC recovery with the slicing method (2.2 COCs/ovary) was better (P < 0.05) than with aspiration (0.9 COCs/ovary). However, the IVM rate was better (P < 0.05) based on expansion (86% vs. 63%) and GVBD (85% vs. 62%) with aspiration than with the slicing method. The cleavage rate (37%) was significantly better with the static culture containing EBS than with the static culture with FCS or the flux culture with either EBS or FCS. It was concluded that aspiration of oocytes and subsequent IVM with static culture containing EBS would be a potential method to reduce the cost of laboratory produced buffalo embryos.
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