Papers by Hussein El-zaher
This experiment was conducted to study the effect of heat stress on some reproductive and product... more This experiment was conducted to study the effect of heat stress on some reproductive and productive performance in purebred and cross-bred female goats under both of hot (summer season) and mild climatic (winter season) conditions. Forty mature female goats (20 Baladi and 20 crossbred (50% Zaraibi x 50% Baladi) used in this research. Results-cundity were higher in experimental does during mild climate conditions than hot climate conditions. Birth weight recorded higher values in mild climate conditions in comparison with hot climate conditions. Concerning to breed, reproductive traits were higher in crossbred goat does compared with purebred goat does. Crossbred goat does showed higher (P<0.01 or P<0.0001) in all productive traits than Baladi goat does. Cor-tisol hormone concentration showed lower (P<0.0001) concentration under mild climate conditions than hot climate conditions during different stages of estrous cycle, pregnancy and postpartum periods. On the other in crossbred goat does compared with purebred does during different stages of estrous cycle, except diestrous period. Similar trend was found during pregnancy and postpartum periods (P<0.01 or P<0.0001). It could-productive and productive traits of goats and in the same time, crossbred was better than purebred goats. Brassica Oleracea L.Var Italica) Powder
This experiment was conducted to study the effect of heat stress on some reproductive and product... more This experiment was conducted to study the effect of heat stress on some reproductive and productive performance in purebred and cross-bred female goats under both of hot (summer season) and mild climatic (winter season) conditions. Forty mature female goats (20 Baladi and 20 crossbred (50% Zaraibi x 50% Baladi) used in this research. Results-cundity were higher in experimental does during mild climate conditions than hot climate conditions. Birth weight recorded higher values in mild climate conditions in comparison with hot climate conditions. Concerning to breed, reproductive traits were higher in crossbred goat does compared with purebred goat does. Crossbred goat does showed higher (P<0.01 or P<0.0001) in all productive traits than Baladi goat does. Cor-tisol hormone concentration showed lower (P<0.0001) concentration under mild climate conditions than hot climate conditions during different stages of estrous cycle, pregnancy and postpartum periods. On the other in crossbred goat does compared with purebred does during different stages of estrous cycle, except diestrous period. Similar trend was found during pregnancy and postpartum periods (P<0.01 or P<0.0001). It could-productive and productive traits of goats and in the same time, crossbred was better than purebred goats. Brassica Oleracea L.Var Italica) Powder
Arab Journal of Nuclear Sciences and Applications, 2019
The present study was conducted to compare the effect of Nano-selenium (Nano-Se) and sodium selen... more The present study was conducted to compare the effect of Nano-selenium (Nano-Se) and sodium selenite (SSe) on growth performance, antioxidative status and blood biochemical changes of growing New Zealand White (NZW) rabbits. The total number of five-week old rabbits were divided randomly into three groups (each of 24, 12 males and 12 females) were used. The first group was served as a placebo; in groups 2 and 3, each rabbit was intramuscularly injected once a week with 4ml solution of Nano-Se or SSe, respectively. The solution was adjusted to provide 30 µg Se/kg/live body weight. Growth trial lasted for two months. Results demonstrated that rabbits with Nano-Se treatment showed a higher rate in the total gain and daily gain weight compared to SSe and the control. Nano-Se and SSe showed lower AST and ALT activities than the control, with a high advantage for SSe. Both Nano-Se and SSe additives increased significantly GR and TAC activities compared to the control, the upper hand recorded by Nano-Se. MDA activity recorded a similar trend using Nano-Se with significant decrement than other groups. TC, LDL, VLDL, triglycerides, and phospholipids decreased significantly due to Nano-Se group than the others. Nano-se and SSe recorded a highly significant HDL, and triglycerides and VLDL than control, respectively. T3 and T4 levels were elevated dramatically in Nano-se group, also feed efficiency, feed conversion ratio and daily gain were improved. It can be concluded that Nano-se supplementation caused positive changes in blood constituents which improved growth performance of growing NZW rabbits more than SSe.
World Rabbit Science, 2019
The present study was conducted to compare the effect of Nano-Selenium (Nano-Se) and sodium selen... more The present study was conducted to compare the effect of Nano-Selenium (Nano-Se) and sodium selenite (SSe) on antioxidant enzyme activity, immunity and thyroid activity of growing New Zealand White (NZW) rabbits. In this study, 72 male rabbits (5 wk old) were divided randomly into 3 groups (24 rabbits each). The first group served as a placebo; in groups 2 and 3, each rabbit was intramuscularly injected once a week with 4 mL solution of Nano-Se or SSe, respectively, for a 2-mo period. The solution was adjusted to provide 30 µg Se/kg/live body weight. Results showed that Nano-Se treatment significantly (P<0.0001) increased in superoxide dismutase (SOD), glutathione peroxidase (GPx) and glutathione (GSH) more than control, but decreased significantly each of glutathione disulphide (GSSG) and nitric oxide (NO) levels in serum. Likewise, supplementation of SSe increased (P<0.0001) GPx activity and significantly decreased both malondialdehyde (MDA) and GSSG levels more than control. Nano-Se significantly enhanced serum IgG and IgM more than SSe and control groups. Serum aspartate aminotransferase increased (P<0.0001) due to Nano-Se treatment as compared to control and SSe, although the lowest (P<0.0001) activity of alanine aminotransferase was recorded due to SSe supplementation. Nano-Se treatment increased (P<0.0001) both T3 and T4 concentrations more than other groups. Furthermore, administration of Nano-Se increased SOD, GPx, GSH, total antioxidant capacity (TAC) and adenosine triphosphate (ATP) in liver tissue of growing rabbits, while it decreased MDA and 8-hydroxy-2'deoxyguanosine (8-oHdG) levels in liver tissue compared with control. Also, SSe showed an increase (P<0.0001) in GSH, and ATP, but significantly decreased TAC and MDA levels compared with control. It can be concluded that Nano-Se supplementation significantly enhanced the activity of antioxidant enzymes in both serum and liver tissues, with a greater positive influence on immunoglobulin production and thyroid activity in growing NZW rabbits than SSe.
Article, 2018
The effect of chromium and selenium with vitamin E on progesterone (P4) and estradiol-17 β (E2) l... more The effect of chromium and selenium with vitamin E on progesterone (P4) and estradiol-17 β (E2) levels of Baladi female goats was the objective of this study as new techniques for improving the reproductive performance of Egyptian goats. Seventy-two of mature Baladi does were used through two conditions of winter and summer seasons (36 animals / season). The animals were randomly divided into three groups, the 1st group was kept as control and the 2nd group was supplemented by chromium. The 3rd group was intramuscularly injected twice a week with 2ml viteselen®, contained 0.5 mg selenium and 10.7 IU vitamin E (Se-E). Serum hormones levels were assessed in the three experimental goats during the estrous, pregnancy and postpartum periods. The results showed that P4 levels during estrous cycle and mid. pregnancy periods were significantly higher in mild season than in hot season while opposite trend was found during early and late pregnancy as well as postpartum period. E2 levels during postpartum period were significantly higher in hot season than in mild season while during estrous cycle no significant differences in E2 levels due to season. Chromium showed significant (P<0.05) increase in P4 levels in goats during each of estrous cycle and pregnancy periods and showed significant decrease in P4 levels in goats during postpartum period as compared with control. Selenium-E significantly increased the concentration of P4 in goats during each of the luteal phase of estrous cycle, pregnancy and at 30th day postpartum periods as compared with control. The opposite trend was found at 15th and 45th days postpartum. No significant difference in P4 due to Selenium-E during follicular phase of estrous cycle. Chromium showed significant decrease in E2 levels in goats at 15th and 45th days postpartum period while no significant differences in E2 levels due to chromium treatment during estrous cycle and 30th day of pregnancy period. Selenium-E increased significantly E2 level during estrous cycle and postpartum periods.
This experiment was conducted to study the effect of heat stress on thermoregulatory responses in... more This experiment was conducted to study the effect of heat stress on thermoregulatory responses in Baladi and crossbrd (50% Baladi x 50% Zaraibi) female goats reared under desert of Inshas area during estrous cycle, pregnancy stages and postpartum periods under hot season (period from May, 2014 to October, 2014) compared with mild season (period from October, 2013 to March, 2014) and measure the difference between performance of crossbred animals and per-formance of the breed that were crossed to evaluate adaptability of two breed throughout these stages, point out hot climate condition of Egyptian environment. It has been used in this research 40 mature female goats (20 Baladi and 20 crossbred (50% Zaraibi x 50% Baladi) with an average age of 2-3 years and an average body weight was ranging from 25±1.5 kg to 35±1.6 kg for Baladi and crossbred, respectively, the experiment lasted for two seasons (mild and hot). The animals were kept in semi-open pens during the experimental period and allowed to graze for five hours daily at least. Thermoregulatory responses of the animal were estimated in terms of rectal temperature (RT), skin temperature (ST) and respiratory rate (RR).Results showed significant decrease (P<0.0001) in RT, ST and RR during mild season as compared with hot season during the estrous cycle. Also, crossbred showed lower (P<0.01 or P<0.05) RT in comparison with Baladi goat does during different stages of estrous cycle. While ST and RR showed insignificant variations between crossbred and Baladi goat does during different stage of estrous cycle. During pregnancy stages Baladi and crossbred goat does recorded significant low (P<0.0001) RT, ST and RR under mild season compared with hot season throughout different stages of pregnancy. Crossbred showed lower (P<0.05 or P<0.0001) RT than Baladi goat does during different stages of pregnancy, however insignificant variations in ST and RR between crossbred and Baladi goat does during different stages of pregnancy. During postpartum periods Baladi and crossbred goat does recorded significant low (P<0.05 or P<0.0001) RT, ST and RR under mild season in comparison with hot season throughout different stages of postpartum. While RT showed significant variation (P<0.05) between crossbred and Baladi goat does in different stages of postpartum (day of parturition and 15 days postpartum), except 30 days postpartum which insignificantly affected by breed. ST showed significant variation (P<0.01) between crossbred and Baladi goat does in 30 days postpartum only. However RR showed significant (P<0.05 or P<0.01) decrease in crossbred as compared with Baladi goat does in different stages of postpartum. From the present results, it could be concluded that, each of season, goat breed and physiological status were affected on rectal temperature, skin temperature and respiration rate throughout the estrous cycle, pregnancy stages and postpartum period of Baladi goat does and its crosses with Zaraibi (50% Baladi x 50% Zaraibi).
البلدي الماعز لنإاث الحرارية السإتجابات الحاره شبه الظروف تحت والخليط . الظا... more البلدي الماعز لنإاث الحرارية السإتجابات الحاره شبه الظروف تحت والخليط . الظاهر مصطفى حسين 1 السيد محمد إبراهيم عبدالكريم ، 2 فرغلي مصطفى أحمد حسن ، 1 طعيمه ابراهيم ادريس فاطمه و October, 2014) compared with mild season (period from October, 2013 to March, 2014 and measure the difference between performance of crossbred animals and performance of the breed that were crossed to evaluate adaptability of two breed throughout these stages, point out hot climate condition of Egyptian environment. It has been used in this research 40 mature female goats (20 Baladi and 20 crossbred (50% Zaraibi x 50% Baladi) with an average age of 2-3 years and an average body weight was ranging from 25±1.5 kg to 35±1.6 kg for Baladi and crossbred, respectively, the experiment lasted for two seasons (mild and hot). The animals were kept in semi-open pens during the experimental period and allowed to graze for five hours daily at least. Thermoregulatory responses of the animal were estimated in terms of rectal temperature (RT), skin temperature (ST) and respiratory rate (RR).Results showed significant decrease (P<0.0001) in RT, ST and RR during mild season as compared with hot season during the estrous cycle. Also, crossbred showed lower (P<0.01 or P<0.05) RT in comparison with Baladi goat does during different stages of estrous cycle. While ST and RR showed insignificant variations between crossbred and Baladi goat does during different stage of estrous cycle. During pregnancy stages Baladi and crossbred goat does recorded significant low (P<0.0001) RT, ST and RR under mild season compared with hot season throughout different stages of pregnancy. Crossbred showed lower (P<0.05 or P<0.0001) RT than Baladi goat does during different stages of pregnancy, however insignificant variations in ST and RR between crossbred and Baladi goat does during different stages of pregnancy. During postpartum periods Baladi and crossbred goat does recorded significant low (P<0.05 or P<0.0001) RT, ST and RR under mild season in comparison with hot season throughout different stages of postpartum. While RT showed significant variation (P<0.05) between crossbred and Baladi goat does in different stages of postpartum (day of parturition and 15 days postpartum), except 30 days postpartum which insignificantly affected by breed. ST showed significant variation (P<0.01) between crossbred and Baladi goat does in 30 days postpartum only. However RR showed significant (P<0.05 or P<0.01) decrease in crossbred as compared with Baladi goat does in different stages of postpartum. From the present results, it could be concluded that, each of season, goat breed and physiological status were affected on rectal temperature, skin temperature and respiration rate throughout the estrous cycle, pregnancy stages and postpartum period of Baladi goat does and its crosses with Zaraibi (50% Baladi x 50% Zaraibi).
البلدي الماعز لنإاث الحرارية السإتجابات الحاره شبه الظروف تحت والخليط . الظا... more البلدي الماعز لنإاث الحرارية السإتجابات الحاره شبه الظروف تحت والخليط . الظاهر مصطفى حسين 1 السيد محمد إبراهيم عبدالكريم ، 2 فرغلي مصطفى أحمد حسن ، 1 طعيمه ابراهيم ادريس فاطمه و October, 2014) compared with mild season (period from October, 2013 to March, 2014 and measure the difference between performance of crossbred animals and performance of the breed that were crossed to evaluate adaptability of two breed throughout these stages, point out hot climate condition of Egyptian environment. It has been used in this research 40 mature female goats (20 Baladi and 20 crossbred (50% Zaraibi x 50% Baladi) with an average age of 2-3 years and an average body weight was ranging from 25±1.5 kg to 35±1.6 kg for Baladi and crossbred, respectively, the experiment lasted for two seasons (mild and hot). The animals were kept in semi-open pens during the experimental period and allowed to graze for five hours daily at least. Thermoregulatory responses of the animal were estimated in terms of rectal temperature (RT), skin temperature (ST) and respiratory rate (RR).Results showed significant decrease (P<0.0001) in RT, ST and RR during mild season as compared with hot season during the estrous cycle. Also, crossbred showed lower (P<0.01 or P<0.05) RT in comparison with Baladi goat does during different stages of estrous cycle. While ST and RR showed insignificant variations between crossbred and Baladi goat does during different stage of estrous cycle. During pregnancy stages Baladi and crossbred goat does recorded significant low (P<0.0001) RT, ST and RR under mild season compared with hot season throughout different stages of pregnancy. Crossbred showed lower (P<0.05 or P<0.0001) RT than Baladi goat does during different stages of pregnancy, however insignificant variations in ST and RR between crossbred and Baladi goat does during different stages of pregnancy. During postpartum periods Baladi and crossbred goat does recorded significant low (P<0.05 or P<0.0001) RT, ST and RR under mild season in comparison with hot season throughout different stages of postpartum. While RT showed significant variation (P<0.05) between crossbred and Baladi goat does in different stages of postpartum (day of parturition and 15 days postpartum), except 30 days postpartum which insignificantly affected by breed. ST showed significant variation (P<0.01) between crossbred and Baladi goat does in 30 days postpartum only. However RR showed significant (P<0.05 or P<0.01) decrease in crossbred as compared with Baladi goat does in different stages of postpartum. From the present results, it could be concluded that, each of season, goat breed and physiological status were affected on rectal temperature, skin temperature and respiration rate throughout the estrous cycle, pregnancy stages and postpartum period of Baladi goat does and its crosses with Zaraibi (50% Baladi x 50% Zaraibi).
البلدي الماعز لنإاث الحرارية السإتجابات الحاره شبه الظروف تحت والخليط . الظا... more البلدي الماعز لنإاث الحرارية السإتجابات الحاره شبه الظروف تحت والخليط . الظاهر مصطفى حسين 1 السيد محمد إبراهيم عبدالكريم ، 2 فرغلي مصطفى أحمد حسن ، 1 طعيمه ابراهيم ادريس فاطمه و October, 2014) compared with mild season (period from October, 2013 to March, 2014 and measure the difference between performance of crossbred animals and performance of the breed that were crossed to evaluate adaptability of two breed throughout these stages, point out hot climate condition of Egyptian environment. It has been used in this research 40 mature female goats (20 Baladi and 20 crossbred (50% Zaraibi x 50% Baladi) with an average age of 2-3 years and an average body weight was ranging from 25±1.5 kg to 35±1.6 kg for Baladi and crossbred, respectively, the experiment lasted for two seasons (mild and hot). The animals were kept in semi-open pens during the experimental period and allowed to graze for five hours daily at least. Thermoregulatory responses of the animal were estimated in terms of rectal temperature (RT), skin temperature (ST) and respiratory rate (RR).Results showed significant decrease (P<0.0001) in RT, ST and RR during mild season as compared with hot season during the estrous cycle. Also, crossbred showed lower (P<0.01 or P<0.05) RT in comparison with Baladi goat does during different stages of estrous cycle. While ST and RR showed insignificant variations between crossbred and Baladi goat does during different stage of estrous cycle. During pregnancy stages Baladi and crossbred goat does recorded significant low (P<0.0001) RT, ST and RR under mild season compared with hot season throughout different stages of pregnancy. Crossbred showed lower (P<0.05 or P<0.0001) RT than Baladi goat does during different stages of pregnancy, however insignificant variations in ST and RR between crossbred and Baladi goat does during different stages of pregnancy. During postpartum periods Baladi and crossbred goat does recorded significant low (P<0.05 or P<0.0001) RT, ST and RR under mild season in comparison with hot season throughout different stages of postpartum. While RT showed significant variation (P<0.05) between crossbred and Baladi goat does in different stages of postpartum (day of parturition and 15 days postpartum), except 30 days postpartum which insignificantly affected by breed. ST showed significant variation (P<0.01) between crossbred and Baladi goat does in 30 days postpartum only. However RR showed significant (P<0.05 or P<0.01) decrease in crossbred as compared with Baladi goat does in different stages of postpartum. From the present results, it could be concluded that, each of season, goat breed and physiological status were affected on rectal temperature, skin temperature and respiration rate throughout the estrous cycle, pregnancy stages and postpartum period of Baladi goat does and its crosses with Zaraibi (50% Baladi x 50% Zaraibi).
Uploads
Papers by Hussein El-zaher