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Search Result For 'Animal production' , Result Number : 13

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Mohamed Abdelfattah Mohamed Ahmed Nasr
- Faculty Research Area On Zu Site
- Faculty Research Area On Staff Site
Animal production
Sameh Abdelbary Abdelnour abdelbary
- Faculty Research Area On Zu Site
- Faculty Research Area On Staff Site
NANOTECHNOLOGY iN ANIMAL PRODUCTION
Alshaymaa Mohamed Roshdy Ali Zakki
- Faculty Research Area On Zu Site
- Faculty Research Area On Staff Site
Animal production
Hisham Hosny Elsayed Mohamed
- Faculty Research Area On Zu Site
- Faculty Research Area On Staff Site
animal production and animal wealth
Khaled Mohammed Ali AlMarakby
- Faculty Research Area On Zu Site
- Faculty Research Area On Staff Site
Characterization of progesterone profile, physiological responses, milk composition and blood biochemical and hematological indices at the early stage of lactation in goats. Mahmoud S. El-Tarabanya, Tamer M. Abdel-Hamida, Omar A. Ahmed-Faridb, and Khaled M. Al-Marakbyc a Department of Animal Wealth Development, Faculty of Veterinary Medicine, Zagazig University, Sharkia, Egypt. b Physiology department, National Organization for Drug Control and Research (NODCAR), Cairo, Egypt. c Department of Animal production, Faculty of Agriculture, Zagazig University, Sharkia, Egypt. Abstract The aim of this research was to describe the progesterone profile, physiological response, milk composition, and blood chemistry at the early stage (DIM 30-90 days) of lactation (E1:30-50; E2:50-70; E3:70-90 days) in Baladi goats under Egyptian conditions. The serum progesterone level was significantly reduced with the progress of the early lactation period to reach the least concentration (0.24 ng/ml) at the E3 stage of lactation (P=0.001). The daily milk yield was significantly increased with the progress of the lactation to reach the peak at the E2 stage of lactation (P=0.015). The percentage of milk fat was significantly decreased with the progress of the early lactation period (P=0.032). However, the percentages of total solids and SNF were significantly increased in E2 and E3 stages when compared with the E1 stage (P=0.001 and 0.018, respectively). The serum glucose and total antioxidant capacity were considerably reduced with the progress of the lactation period (P=0.047 and 0.039, respectively). In conclusion, Baladi goats showed a decreased serum progesterone level with the progress of the early lactation period and produce milk with a relatively stable protein and lactose contents. Furthermore, Baladi does able to maintain the stability of most blood biochemical parameters during such period.
Khaled Mohammed Ali AlMarakby
- Faculty Research Area On Zu Site
- Faculty Research Area On Staff Site
Effect of exogenous hormone treatments on spermatogenesis in male grey mullet out of the spawning season. Abdel-Halim A. El-Darawany a , Amira Moustafa b, Khaled M. Al-Marakby a, Abdel-Mageed E. Nasr a, Mohamed A. Naiel a, and Yaser H. Elewa c. a Department of Animal production, Faculty of Agriculture, Zagazig University, Sharkia,Egypt. b Department of Physiology, Faculty of Veterinary Medicine, Zagazig University, Sharkia, Egypt. c Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, Sharkia, Egypt. Abstract The aim of the present study is to investigate the effects of human chorionic gonadotropin (hCG), carp pituitary extract (CPE), melatonin, and adrenal gland extract (AE) administered either separately or in combination on the induction of testicular maturation and spermatogenesis in the thin-lipped grey mullet, Liza ramada, out of its spawning season. The results revealed that testes obtained from fish out of their reproductive season have empty seminiferous tubules with germ cells or Sertoli cells markers barely expressed and a low gonadsomatic index (GSI). A significant increase in GSI levels was observed by different hormone treatments. As predicted, hormone treatments showed an obvious stimulation of germ cells proliferation and testicular maturation as indicated by the immunohistochemical expression of germ cells and Sertoli cells markers with the highest values achieved by hCG/AE treatment. We conclude that hormone treatments may be a potential strategy for the induction of spermatogenesis and testes maturation.
Khaled Mohammed Ali AlMarakby
- Faculty Research Area On Zu Site
- Faculty Research Area On Staff Site
Effect of lunar cycle on some reproductive aspects of female goats. Abdel-Halim A. El-Darawanya, Mahmoud S.El-Tarabanyb,Khaled M. Al-Marakbya, and Mostafa A. Attac a Department of Animal production, Faculty of Agriculture, Zagazig University, Sharkia,Egypt. b Department of Animal Wealth Development, Faculty of Veterinary Medicine, Zagazig University, Sharkia, Egypt. c Biological Applications Department, Radioisotopes Applications Division, NRC, Atomic Energy Authority, Inshas, Sharkia, Egypt. Abstract The aim was to evaluate the possible effects of different lunar phases at birth on the pre-pubertal changes in the body measurements, blood parameters and hormonal profile of female goats. Based on the birth date, 36 female Nubian kids (3 months of age) were selected to equally represent the new (NL), full (FL) and old (OL) phases of the lunar cycle. Female goats in the FL group showed significantly higher body weights at weeks 20, 24 and 28 of age compared to the OL group (P = 0.050, 0.033 and 0.046,respectively). Female goats in the FL group exhibited estrus signs earlier than those in the OL group (P = 0.013). At the age of puberty, the values of Spinnbarkeit and ferning arborization of cervical mucus in the FL group were significantly greater than the NL and OL groups (P = 0.001 and 0.040, respectively). At weeks 26 and 27 of age, female goats in the FL group had significantly greater serum progesterone (P = 0.006 and 0.001, respectively) than did the NL and OL groups. In conclusion, the FL group reached the puberty at an early age and exhibited higher cyclic progesterone levels than did the NL and OL groups.
Khaled Mohammed Ali AlMarakby
- Faculty Research Area On Zu Site
- Faculty Research Area On Staff Site
Effect of synchronization protocols on reproductive indices, progesterone profile and fertility under subtropical environmental conditions in repeat breeder Holstein cows. Mahmoud S. El-Tarabany a and Khaled M. Al-Marakby b a Department of Animal Wealth Development, Faculty of Veterinary Medicine, Zagazig University, Sharkia, Egypt. b Department of Animal production, Faculty of Agriculture, Zagazig University, Sharkia,Egypt. Abstract The objectives were to evaluate the reproductive indices and survival analysis of pregnancy outcomes in multiparous repeat breeder Holstein cows (n = 557). The cows were synchronized to ovulate by Ovsynch, new controlled internal drug release device (N-CIDRsynch), and once-used CIDR device (U-CIDRsynch). The pregnancy per AI at 28 days post-insemination (P/AI 28) in the N-CIDRsynch group (28.75%) was significantly (COR = 1.49; p = 0.011) greater than that reported in the Ovsynch (23.46%) and U-CIDRsynch (21.73%) groups. Furthermore, the pregnancy per AI at day 75 post-insemination (P/AI 75) in the N-CIDRsynch group was significantly greater than the Ovysync group (COR = 1.35; p = 0.050). The repeat breeder cows received a N-CIDR device had a significantly higher progesterone level on day 2 and day 4 of CIDR insertion (1.38 and 1.67 ng/ml, respectively) than those received a U-CIDR device or the control group (p = 0.012 and 0.001, respectively). The Cox regression model recorded significant associations for synchronization protocols, THI at the TAI and season of calving with the hazard of P/AI 28 and P/AI 75 (p = 0.044 and 0.046; 0.001 and 0.005; 0.003 and 0.001, respectively). Multiparous repeat breeder cows (>3) had a lower hazard ratio (HR) of P/AI 28 than that reported in the reference (2nd parity) group (HR = 0.74, p = 0.050). The repeat breeder cows inseminated at 76–80 and >80 temperature-humidity index (THI) had significantly lower HR of P/AI 28 than those inseminated at the baseline (<70) THI value (HR = 0.73 and 0.30, p = 0.036 and 0.001, respectively). The current results indicate that the use of N-CIDR synch protocol may achieve satisfactory pregnancy outcomes in repeat breeder cows.
Khaled Mohammed Ali AlMarakby
- Faculty Research Area On Zu Site
- Faculty Research Area On Staff Site
0.05) effects on final body weight, total body weight gain, feed input, feed conversion ratio, relative growth rate and protein productive value. The findings of blood hematological and biochemical parameters did not significantly differed among the experimental groups (P > 0.05). The mortality rate was considerably decreased in the T5 group when compared with the control group. The parameters of health conditions were homogeneous in all dietary groups. The relative profit was significantly increased with all inclusion levels of DDGS compared with the control diet (T1). In conclusion, incorporation of DDGS instead of the mixture of fish meal, soybean meal and yellow corn up to the level 30 % had no negative effects on productive performance, and health condition, with a considerable improvement in the economic efficiency of Nile tilapia fish diets.'>Impact of distiller's dried grains with solubles on health and performance of Nile tilapia (Oreochromis niloticus) fish. Mohamed Mostafa Khadr 1, Khaled M. Al-Marakby 2, Sabry, A. Shehata 2 and Mohamed S. Ebrahim 1 1 Central Laboratory of Aquaculture Research, Abbasa, Abo-Hammad, Sharkia, Egypt. 2 Animal Production Department, Faculty of Agriculture, Zagazig University, Egypt. Abstract This work was conducted to study the impact of dried distiller grain with solubles (DDGS) incorporation in Nile tilapia (Oreochromis niloticus) diets on performance, health and economic efficiency. An aggregate number of 200 Nile tilapia fingerlings (Average body weight 12.86 g ± 0.14) were randomly distributed into five experimental groups, with 4 replicates (Glass aquaria) contain 10 fingerlings per each. Five diets were formulated to contain 0 (Control diet based on fish meal, soybean meal and yellow corn), 5, 10, 20 and 30% DDGS (T1, T2, T3, T4 and T5 , respectively). The fingerlings received the experimental diets twice daily to apparent satiation for 16 weeks. All inclusion levels of DDGS (5, 10, 20 and 30%) had no significant (P > 0.05) effects on final body weight, total body weight gain, feed input, feed conversion ratio, relative growth rate and protein productive value. The findings of blood hematological and biochemical parameters did not significantly differed among the experimental groups (P > 0.05). The mortality rate was considerably decreased in the T5 group when compared with the control group. The parameters of health conditions were homogeneous in all dietary groups. The relative profit was significantly increased with all inclusion levels of DDGS compared with the control diet (T1). In conclusion, incorporation of DDGS instead of the mixture of fish meal, soybean meal and yellow corn up to the level 30 % had no negative effects on productive performance, and health condition, with a considerable improvement in the economic efficiency of Nile tilapia fish diets.
Khaled Mohammed Ali AlMarakby
- Faculty Research Area On Zu Site
- Faculty Research Area On Staff Site
Impact of lunar phase at birth on testicular morphology, semen characteristics and blood chemistry of male goats. Mahmoud S. El-Tarabany a, Abdel-Halim A. El-Darawany b, Akram A. El-Tarabany c and Khaled M. Al-Marakby b a Department of Animal Wealth Development, Faculty of Veterinary Medicine, Zagazig University, Sharkia, Egypt. b Department of Animal production, Faculty of Agriculture, Zagazig University, Sharkia,Egypt. c Biological Applications Department, Radioisotopes Applications Division, NRC, Atomic Energy Authority, Inshas, Sharkia, Egypt. Abstract The aim was to investigate the possible effects of different lunar phases at birth on the pre-pubertal changes in the body weights, blood parameters and hormonal profile of male goats. Based on the birth date, 33 male Nubian kids (3 months of age) were selected to represent the new (NL), full (FL) and old (OL) phases of the lunar cycle. The FL group exhibited the signs of puberty earlier than the NL and OL groups (P=0.011). At the age of puberty, bucks in the FL group had significantly higher ejaculate volume (P=0.010), sperm cell concentration (P=0.004), mass motility (P=0.016) and the percentage of live spermatozoa (P=0.008) as compared to the NL and OL groups. Additionally, male goats in the FL group showed significantly higher serum testosterone levels at week 25, 26, 27 and 28 of age compared with the NL and OL groups (P=0.002, 0.013, 0.038 and 0.004, respectively). In conclusion, the growing males in the FL group reached the puberty earlier than the NL and OL groups. Moreover, this study may help to maximize the semen quality and develop more effective AI strategies in the modern goat production systems.
Khaled Mohammed Ali AlMarakby
- Faculty Research Area On Zu Site
- Faculty Research Area On Staff Site
Induction of ovulation in liza ramada (RISSO, 1826) out of season. Mohamed A. Naiel, Abdel-Halim A. El-Darawany, Abdel-Mageed E. Nasr, and Khaled M. Al-Marakby. a Department of Animal production, Faculty of Agriculture, Zagazig University, Sharkia,Egypt. Abstract The present work was designed to determine the suitable hormonal requirements for induction of ovulation in the thin-lipped grey mullet (Liza ramada) reared in brackish water earthen pond out of season. At April 2014, eight groups of grey mullet (6 females / group) were collected and kept in aquaculture pond. The first group (G1) did not receive the hormonal treatment. The mullets of the other seven groups were subjected to intramuscular injection of hormones as follows: G2, 4500 IU/Kg human chorionic gonadotropin (hCG); G3, 3 mg melatonin (ML) /fish; G4, 3 carp pituitary extract (cPE) / fish; G5, a combination of 4500 IU/Kg hCG + 3 cPE / fish; G6, a combination of 4500 IU/Kg hCG + 3mg/ ML fish; G7 , a combination of 4500 IU/Kg hCG + 3 adrenal gland (AD) / fish; G8, a combination of 3 cPE + 3mg/ ML fish. The results after 24hr of injection revealed that estradiol 17-β (E2) level in the collected serum experimental mullets was increased (P < 0.05) with G2 treatment. In the same trend, gonadosomatic index (GSI) was significantly (P < 0.05) increased with G2. The serum Progesterone (P) concentration and Progesterone/Estradiol 17-β ratio (P/E2) were significantly (P < 0.05) increased with G5 than other groups. The G5 group showed oocytes maturation and ovulation superior to that of all other groups, with ripped oocyte and other different maturity stages in Liza ramada out of season. It could be concluded that, 4500 IU/kg of hCG and 3 cPE combination had successfully induced the oocyte maturation in Liza ramada fish reared in brackish water under captivity out of season and a higher dose would induce the ovulation and spawning.
Olwi Ali Mohamed Hasanien
- Faculty Research Area On Zu Site
- Faculty Research Area On Staff Site
The influences of dietary supplementation of peanut skin powder (Arachis Hypogaea) on growth performance, carcass traits, blood chemistry, antioxidant activity and meat quality of broilers. M. E. Abd El-Hack1a, E. A. Ashour1, Gh. M. Elaraby2, A. O. Osman3 and M. Arif4 Manuscript ID AN16346, Animal Production Science 2016. Website: http://www.publish.csiro.au/AN/justaccepted/AN16346
Mohamed Salaheldeen Mohamed Ayat
- Faculty Research Area On Zu Site
- Faculty Research Area On Staff Site
Animal Production