Karim El-Sabrout* and Mohamed H. Khalil
...has been shown to affect hatchability, but using light-emitting diode (LED) precisely has not been fully examined. This study aims to evaluate the effect of LED lighting during incubation of Fayoumi eggs on hatchability (period length, dead embryos and percentage) and hatch chick performance (weight, vitality). The experiment was carried out in two groups with total number of 1800 eggs (900 eggs for each group). Eggs were in...
Abdul Malik1,2, Ghulam Abbas1,*, Abdul Ghaffar3, Sara Ferrando4, Lorenzo Gallus4 and Syed Sajjad A. Shah2,3
...st fecundity, fertility, hatchability and survival of fry were obtained on salinity of 0%-15% and significantly decreased on 20‰ and 25‰. The eggs per gram body weight were also recorded in all treatments and highest eggs were obtained i.e. 4.0-4.3 per female on 0‰-15‰. Water temperature (28.02±0.12°C), dissolved oxygen (6.4±0.02 mg/L), pH (7.47±0.04) and ammonia (less than 0.022±0.001 mg/L) we...
Irfan1,*, Arshad Javid7, Muhammad Ashraf2, Athar Mahmud3, Muhammad Altaf4, Syed Makhdoom Hussain5, Muhammad Shahbaz4 and Khalid Javed Iqbal6
...>semen were recorded and hatchability percentages of the artificially inseminated hens were assessed. To study the effect of natural mating on hatchability 15 (3♂, 12♀) M. gallopavo were randomly selected, were kept separately and were allowed to mate through stud mating. For artificial insemination, male (n = 3) and female (n = 12) birds were kept separately. Semen of the male birds was collected on weekl...

 Asrar Ali*, Ehsan-ul-Haq**, Abdul Rehman***, Javed Khan, Waseem Ahmad Gillani** and Maria Rauf*

BIOLOGICAL PARAMETERS AND PREDATORY POTENTIAL OF MENOCHILUS SEXMACULATUS FAB. (COLEOPTERA:COCCINELLIDAE) AT VARYING TEMPERATURE ON RHOPALOSIPHUM PADI L.
...ectively. Percentage egg hatchability of the predator was significantly higher at 28±1°C. The total larval duration of predator was 9.47, 7.70 and 5.49 days, respectively. Duration of pupal period ranged between 2.21 and 4.35 days on R. padi at three temperatures. The pre-oviposition, oviposition and post-oviposition periods were between 4.64 and 7.48, 24.99 and 39.93 and 4.76 and 8.09 days, respectively on R. padi. Mean predatory potential of all l...

 Maria Rauf*, Ehsan-ul-Haq**, Javed Khan**, Abdul Rehman***, Waseem Ahmad Gillani* and Asrar Ali**

BIOLOGY AND PREDATORY POTENTIAL OF COCCINELLA SEPTEMPUNCTATA LINN. ON SCHIZAPHIS GRAMINUM APHID UNDER CONTROLLED CONDITIONS
...h 75.6%, 82.0% and 71.2% hatchability, respectively. The larval durations were 29.5, 15.9 and 8.1 days with predatory potential of 573.7, 575.0 and 667.8 aphids per larvae. The results indicated that with increasing temperature, developmental duration decreases significantly. The pupal developmental duration was 14.0, 9.2 and 5.2 days, respectively which are significantly different from each other. The adult male and female longevity were 44.7, 37.7, 30.0 and ...

 Javed Khan*, Ehsan-ul-Haq*, Habib Iqbal Javed*, Tariq Mahmood*,
Awais Rasool*, Naheed Akhtar and Saleem Abid**

BIOLOGICAL PARAMETERS AND PREDATORY POTENTIAL OF CHRYSOPERLA CARNEA (NEUROPTERA: CHRYSOPIDAE) FEEDING ON WHEAT APHID SCHIZAPHIS GRAMINUM (HEMIPTERA: APHIDIDAE) UNDER LABORATORY CONDITIONS
...smn;0.08 days with 87.0% hatchability. The developmental duration of first, second and third instar larvae were 3.2 ± 0.13, 4.0±0.21 and 4.8±0.25 days, respectively. The total larval developmental duration was 12.0 ±0.67 days with 85.05% survival rate of larvae. The larval predatory potential was 414.6±0.05 aphid per larvae. The total duration and survival rate from egg to adult emergence was 24.6± 0.06 days with 73% s...
Yan Li1, Kai Zhan1,*, Junying Li1, Wei Liu1, Ruiyu Ma1, Shengnan Liu1, Haijun Cui1 and Xin Zhang2
...ion in egg fertility and hatchability of setting eggs in group 4. Egg quality analysis demonstrated the significant increases in shell thickness among declawed treatments and yolk color in group 2. Overall feather score of layer breeders was not a significant difference, but the neck region had the lowest feather score in all groups. Preferential trimming methods were the removal of the first and third or second and fourth toes of day-old chicks in Hy-Line str...

Pakistan Journal of Zoology

December

Vol. 51, Iss. 6, Pages 1999-2399

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