@article { author = {محرز, أحمد and الحرايرى, مصطفى and العايق, محمود and عبد الخالق, عبد الخالق and خليل, وائل}, title = {تأثير إستخدام نظم غذائية على کفاءة النمو فى الحملان}, journal = {Journal of Animal and Poultry Production}, volume = {1}, number = {4}, pages = {109-117}, year = {2010}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3642}, eissn = {2090-3723}, doi = {10.21608/jappmu.2010.86186}, abstract = {يهدف هذا البحث للوصول الى أنسب النظم الغذائية للحملان المفطومة تحت ظروف الإنتاج المکثف وذلک عن طريق التغذية على خلطان من المواد المرکزة والمواد الخشنة غير التقليدية أو مواد مرکزة فقط تحتوي علي مواد غير تقليدية مقارنة مع الأعلاف التقليدية لدى المربيين. وقد أظهرت النتائج أنه في مرحلة النمو الأولي بعد الفطام لحملان خليط الرحماني مع الرومانوف يمکن التوصية بالتغذية علي علائق عالية في نسبة العلف المرکز (80%) وفي مرحلة ما بعد ذلک (حملان نامية) يمکن تغذية هذه الحملان علي علائق غير تقليدية يتم فيها إستخدام لب بنجر السکر بنسبة 30% بالإضافة إلي الذرة الصفراء وکسب الصويا دون التأثير سلبياً علي معدلات النمو وکذلک قياسات الدم لهذه الحملان. والخلاصة أنه في مرحلة ما بعد الفطام لحملان خليط الرحماني مع الرومانوف يمکن التوصية بالتغذية علي علائق عالية في نسبة العلف المرکز (80%) وفي مرحلة النمو بعد ذلک يمکن تغذية هذه الحملان علي علائق غير تقليدية يتم فيها إستخدام لب بنجر السکر بنسبة 30% بالإضافة إلي الذرة الصفراء وکسب الصويا دون التأثير سلبياً علي معدلات النمو وکذلک قياسات الدم لهذه الحملان. يمکن أن نستخلص من هذه النتائج الآتى: في مرحلة النمو بعد الفطام لحملان خليط الرحماني مع الرومانوف يمکن التوصية بالتغذية علي علائق عالية في نسبة العلف المرکز (80%) وفي مرحلة النمو فيما بعد ذلک يمکن تغذية هذه الحملان علي علائق غير تقليدية يتم فيها إستخدام لب بنجر السکر بنسبة 30% بالإضافة إلي الذرة الصفراء وکسب الصويا دون التأثير سلبياً علي معدلات النمو وکذلک قياسات الدم لهذه الحملان کما أنها أکفأ إقتصاديا.}, keywords = {}, url = {https://jappmu.journals.ekb.eg/article_86186.html}, eprint = {https://jappmu.journals.ekb.eg/article_86186_2cebf35ec9d1ba53c2a9230a12ea5b79.pdf} } @article { author = {El-Harairy, M. and Ashmawy, T and Abdel-Salam, Omnia}, title = {USING GNRH FOR IMPROVING OVARIAN ACTIVITY AND FERTILITY OF EWES DURING BREEDING SEASON.}, journal = {Journal of Animal and Poultry Production}, volume = {1}, number = {4}, pages = {119-132}, year = {2010}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3642}, eissn = {2090-3723}, doi = {10.21608/jappmu.2010.86189}, abstract = {The present study aimed to increase lamb production per ewe per year through increasing number of lambing per year by studying the effect of GnRH treatment on 12 days post-partum on ovarian activity and lambing rate (1st experiment) or 12 days post-mating on fertility of ewes (2nd experiment) during the breeding season. Ewes in both experiments were divided into two similar groups (10 ewes in each). The 1st group represented the control group (G1), which were allowed for natural mating without hormonal treatment and ewes in the 2nd one were i.m. injected on day 12 postpartum (1st experiment) or day 12 post-mating (2nd experiment) with 1 ml GnRH analogue (Receptal). Ram of proven fertility was introduced to ewes in both of control and treatment groups from 12 day postpartum up to the first estrus and mating. The pregnancy was diagnosed using ultrasonography after 73 and 88 d post mating. Results show that GnRH treatment of ewes on day 12 postpartum (1st experiment) markedly increased estrous rate to 100% and decreased postpartum period (1st estrus interval) to 22 days as compared to 90% and 30 days for the control group. Mating period reduced to 10.25 d in treated group (13/Nov. to 05/Dec.) vs. 15.33 d in the control group (20/Nov. to 21/Dec.) Based on total number of treated ewes,lambing rate increased to 100% as compared to 80% in the control group, respectively. Sex ratio was significantly (P<0.05) different between both groups. The control group yielded 70% male and 30% female lambs, versus 50% male and 50% female lambs in the treated group. Moreover, male or female lambs were heavier (P<0.05) in the control than in the treated group. In the 2nd experiment, GnRH treatment of ewes on day 12 post-first mating increased lambing rate to 80% and litter size (P<0.05) to 1.62 as compared to 70% and 1.14 in the control group, respectively.  In conclusion, the administration of exogenous GnRH 12 days postpartum or 12 days after mating could increase lambing rate and fertility of ewes during breeding season.}, keywords = {: Ewes,GnRH,Postpartum,pregnancy rate}, url = {https://jappmu.journals.ekb.eg/article_86189.html}, eprint = {https://jappmu.journals.ekb.eg/article_86189_cc43f30b7abbf6c2c9af63d92d9be410.pdf} } @article { author = {Abdelhamid, A and Magouz, F and El-Mezaien, M. and Khlafallah, M. and Ahmed, E.}, title = {EFFECT OF SOURCE AND LEVEL OF DIETARY WATER HYACINTH ON NILE TILAPIA, Oreochromis niloticus, PERFORMANCE}, journal = {Journal of Animal and Poultry Production}, volume = {1}, number = {4}, pages = {133-150}, year = {2010}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3642}, eissn = {2090-3723}, doi = {10.21608/jappmu.2010.86191}, abstract = {A feeding laboratorial trial in glass aquaria for 12 weeks, to replace graded levels of water hyacinth (WH) meal protein from two (polluted and not polluted) water sources instead of 0, 10, 20, 30 and 40% of soybean meal protein in Nile tilapia diets. Ten experimental diets were formulated to be isocaloric and isonitrogenous (26% crude protein) and offered daily at 2 meals, 6 days a week at 3% of fish biomass daily. Results indicated that rearing water did not influence fish by the tested treatments. Most tested heavy metals had higher levels in WH and diets especially those of polluted source. Iron levels of the WH and experimental diets were > those of Mn > Zn > Cu > Pb > Cd. The highest ether extract (EE) and nitrogen free extract (NFE) and the lowest ash contents were realized in diet contained 30% replacement with WH leaves protein from non-polluted source. Growth performance parameters differed significantly as affected by WH source and level, so the final body weights (FBW) in treatments contained 10, 20 and 30% replacement with WH levels meal protein from the polluted source were significantly lower than those of WH from the non-polluted source. Also, the pollution source for WH led to significantly lower other growth performance parameters than those of the unpolluted source for WH, whether for the bodyweight gain (BWG), survival rate (SR), or specific growth rate (SGR). Increasing level of WH leaves meal protein in the experimental diets led to significantly lower FBW, BWG, SR, SGR and condition factor. The pollution source of WH led to increases in the undeniable parts from the experimental fish (tissues' indices, hepato-somatic and female and male gonado-somatic indices), also more than 30% replacement negatively affected these indices. Contaminated source of WH decreased the feed conversion ratio (FCR) for the very low feed intake as well as for the low fish growth which led to apparent improvements in FCR, protein efficiency ratio (PER) and protein productive value (PPV). Increasing the substitution levels led to increased FCR and PPV but led to lower PER. All blood hematological and biochemical parameters of the tested fish significantly and negative influenced by source and level of WH in the experimental diets, except hemoglobin and total proteins' concentrations. Increasing level of WH leaves meal protein lowered blood total proteins in the fish as a result of lower quality of protein in such diets containing WH. Source and level of WH in the experimental diets significantly affected the chemical analysis of the whole fish body including CP, EE and ash contents.  The CP decreased and both of EE and ash were increased by elevating the substation level or for dietary contaminated WH increased by elevating the substation level or for dietary contaminated WH inclusion.  The increase in WH level in fish diets reduced the feed intake sharply particularly from the diets contained WH from the polluted source comparing with those contained WH from its non-polluted source. Although the low price of WH – included diets, particularly by increasing dietary WH levels; yet, the return from fish weight gain decreased, especially when WH was coming from its polluted source, which starkly reduced feed intake.}, keywords = {Water hyacinth,Nile tilapia,Growth performance,feed utilization,Economic Evaluation}, url = {https://jappmu.journals.ekb.eg/article_86191.html}, eprint = {https://jappmu.journals.ekb.eg/article_86191_ffdad4b854731cc04d61e252436985c0.pdf} }