Mansoura University, Faculty of AgricultureJournal of Animal and Poultry Production2090-364271120161101Effect of Coenzyme Q10 as an Antioxidant Added to Semen Extender During Cryopreservation of Buffalo and Cattle Semen4034084874810.21608/jappmu.2016.48748ENA. M.SaeedAnimal Production Research Institute, Agricultural Research Center, Dokki, Giza, EgyptH. A.El-NagarAnimal Production Research Institute, Agricultural Research Center, Dokki, Giza, EgyptW. M.WafaAnimal Production Research Institute, Agricultural Research Center, Dokki, Giza, EgyptY. S.HusseinAnimal Production Research Institute, Agricultural Research Center, Dokki, Giza, EgyptJournal Article20190921This study was conducted to assess the influence of supplementing Tris-extender with Coenzyme Q10 (COQ10) as an antioxidant on sperm characteristics of Egyptian buffalo and cattle. This study was carried out at Animal Production Research Station, El-Gemmezah, belonging to Animal Production Research Institute, Egypt. Five sexually mature buffalo (4 y and 400-450 kg) and Friesian (3 y and 350-400 kg) bulls were used in this study. Semen was collected twice weekly for five successive weeks. Only ejaculates with ≥70% mass motility were pooled and diluted at 37°C with Tris-extender containing 0, 20 and 30 μM of CoQ10 in T1, T2 and T3, respectively. Equilibration period was at 5°C for 4 h and semen was packed in 0.25 ml French straws frozen in liquid nitrogen -196<sup>o</sup>C. Stored straws were thawed individually at 37°C for 30 s. Semen was evaluated for sperm characteristics including percentages of progressive motility, livability, abnormality, curled tail and acrosomal damage of spermatozoa. Enzymatic activity of AST, ALT and LDH was determined in seminal plasma of post-thawed semen. Results showed that there were no species differences in all sperm characteristics studied, except for increasing (P<0.05) percentage of abnormality and damage acrosome spermatozoa in post-thawed semen of cattle compared with buffalo bulls. All sperm characteristics were improved (P<0.05) by 30 μM COQ10 supplementation T3 in post-diluted, post-equilibrated and post thawed semen as compared to control without supplementation T1 in buffalo and cattle semen. Activity of all enzymes reduced (P<0.05) in seminal plasma of both species. In conclusion, CoQ10, as antioxidant, at a level of 30 μM in Tris-extender is able to enhance most sperm characteristics including mobility, livability, plasma membrane integrity, with decreasing sperm abnormalities and it has strong protective power against acrosomal damage of buffalo and cattle spermatozoa.Mansoura University, Faculty of AgricultureJournal of Animal and Poultry Production2090-364271120161101Nutritional Studies to Evaluate the Productivity and Quality of Preserved New Variety of Hybrid Maize : 2-On Growth Performance and Economic Efficiency in Growing Kids Zaribi Goats4094144874910.21608/jappmu.2016.48749ENM. R. M.SalehAnimal Production Res. Institute, Agric. Research Center , Dokki, EgyptJournal Article20190921Use of new verity of hybrid El-Ryanah x El-Shamia maize as a new type of silage and has many attention due to their high protein efficiency, relatively high digestible energy and total digestible nutrients. Thus, the objective of this study was to evaluate feed intake, growth performance, nutrients digestibility and economic efficiency in growing kids zaribi goats. Twenty four growing zaribi kids were selected from the herd with nearly similar live body weight 13.67 kg and age 4 months old . Animals were divided into three groups (n=8 in each).All kids groups were housed in separated pens under similar environmental condition. All animals were nourished tested diet consisted of concentrate feed mixture (CFM) to cover 50% of protein requirements recommended by NRC (1989).Besides <em>ad libitum</em> supplement rations, where silage made of 100 % berseem (BS) offered to group1(T<sub>1</sub>) as control ,silage made of 100% hybrid Raianah maize silage (HRMS) to group 2 (T<sub>2</sub><strong>) </strong>and silage made of 50 % berseem + 50 % hybrid Raianah maize (HRMBS) to group 3 (T<sub>3</sub>). Feeding trails lasted for 180 days .The obtained results showed that T<sub>1</sub> ration (100% berseem silage) had higher NDF , ADF and ADL than those of T<sub>2</sub> , T<sub>3</sub> rations (100% hybrid corn silage).Moreover, the supplementing of hybrid maize as silage to basal diet had contributed to a reduction giber fraction and an increase of Metabolizable energy particularly with T<sub>2 </sub>ration .Hybrid corn silage alone ((T<sub>2</sub>) was higher of CP, NFE and NFC (14.89, 56.42 and 41.84 respectively), than T<sub>1</sub> (14.67, 51.63 and 41.58 respectively) and T<sub>3</sub> ( 14.03, 52.23 and 40.60 respectively).On the other side T<sub>2</sub> was lower of CF ,EE and Ash (17.02, 2.54 and 9.13) in comparison of T<sub>1</sub> ( 21.45,2.94 and 9.31) and T<sub>3</sub>.( 14.03, 2.79 and 10.17 respectively) .In addition to metabolisable energy(ME) recorded the highest value with T<sub>3</sub> ration (10.01) followed by T<sub>2 </sub>(9.93) ration and the lowest value had detected with T<sub>1</sub> ration ( 9.43).Growth rate and daily body weight gain of kids fed experimental diets were recorded average daily gain values ( 146,154 and 167 g/h/d ) for T1, T2 and T3 respectively. Advantages percentage of total body weight of the experimental groups as found to be 3.39 % and 1.27 % for animal fed T2 and T3 ration compared to the control group (T1).Also, daily dry matter intake increased with T1 ration (1415) and T3 ration (1397) than those of the T2 ration (1367 g). Meanwhile , feed conversion was significantly among treatments (T1 , T2 and T3) , being (9.69 , 8.88 and 8.37 respectively) .Moreover, TDN of T1 ration (60.68%) ,T2 ( 64.65 %) and T3 ( 63.45%) being DCP as same trend and the values were (9.79 %,10.03% and 9.56%) for T1,T2 and T3 respectively with significant (p>0.05) increase for T<sub>2 </sub> ration than those of T<sub>1</sub> and T<sub>3</sub> .The energy concentration of tested diets showed significantly among treatments (P<0.05) and T3 ration had the highest values of NE , ME , and DE concentration ( 1.420 , 2.227 , 2.716) for T<sub>1 ,</sub> T<sub>2 .</sub> T<sub>3 </sub>respectively . On the other hand, growth energy (GE) value of T<sub>2 </sub>rationhad decreased (1.765) than those of T1 ration (1.777) and T3 ration (1.760) .Finally , economic return of kids fed T1 ration showed the highest average feed cost / kg of BWG (14.45 LE) than T2 (13.51 ) and T3 ( 12.52) . Moreover, Price of body weight gain of T1 ration was higher (14.45 LE ) followed by T2 ( 13.51 LE) and the lowest price had recorded with T3 ration(12.52 LE). On the other hand Improved of economic efficiency (%) had recorded the highest value with T3 ration (12.40 LE ) while T2 ration had detected the lowest value (6.04 LE ) in comparison of control ration (T1 ) .Mansoura University, Faculty of AgricultureJournal of Animal and Poultry Production2090-364271120161101Performance of Kids Fed Berseem Silage Alone or Mixed with Barely,Napier Grass or Rod Grass.4154224875010.21608/jappmu.2016.48750ENM. R. M.SalehAnimal Production Research Institute , Agricultural Research Center , Dokki , Giza , Egypt .Journal Article20190921This study was conducted to investigate the growth performance, of fattening kids fed berseem silage alone or mixed with either , barley, hybrid Napier grass or Rod grass .Thirty-two growing Zaraibi kids of four months age and averaged 13.19 kg live body weight were used to this study.The animals were distributed on four feeding treatments (8 heads each),were used in this study .The experiment included two stages. The first stage represents a growing period 140 days ,during which the kids were fed concentrate feed mixture (CFM) to cover 50 % of protein requirements recommended by NRC(1989).In addition to <em>ad libitum</em> silage supplement, where (100 % berseem silage) was offered to group1(G<sub>1</sub>),(50 % berseem+50 %barley silage) to group 2 (G<sub>2</sub>),( 50% berseem+50% hybrid Napier grass silage) to group 3(G<sub>3</sub>) and (50% berseem+50% Rod grass silage) to group 4 (G4).Second stage the ( finishing period 60 days) all experimental groups were fed 60% concentrate feed mixture (CFM)+ 20% berseem hay+20% rice straw. The results showed that , during the first stage ( growing period of 140 days) the substitution of mixture of Rod grass x berseem silage G4 ) and hybrid Napeir grass x berseem silage(G3) significantly (p >0.05) increased live body weight , body weight gain , protein and energy efficiency ratios compared with kids fed other dietary treatment groups. Moreover, final body weight ( finishing period 60 days) the kids fed G4 and G3 rations were significantly (p>0.05) higher than those fed others tested rations. While feed intake as well as ( DM , CP ,TDN ,DCP, protein and energy) were significantly (p>0.05) higher for kids fed control (G1) followed by those fed barely x berseem silage ration (G2) than kids fed Rod grass x berseem silage(G4)and hybrid Napeir grass x berseem silage(G3).However feed conversion ratio was the best for Rod grass x berseem silage(G4)followed by hybrid Napeir grass x berseem silage(G3). Meanwhile , the results illustrated that kids fed Rod grass x berseem silage (G4) improved (p>0.05) most nutrients digestibility and feeding values as TDN and DCP compared with other tested rations .The average daily feed intake by kids fed control and barely rations during growing period were significantly (p >0.05) higher than others . Average daily feed intake by kids during finishing period showed that kids fed control (G1) and barely x berseem silage(G2) had the highest DM intake . However, kids fed ration contained Rod grass x berseem silage (G4) and hybrid Napier grass x berseem silage(G3)showed the lowest DM intake. It could be concluded that Rod grass mixing with berseem silage(G4) , hybrid Napier grass with berseem silage(G3) and barely with berseem silage(G2) as silages in growing kids nutrition led to improve digestibility of most nutrients, increase daily gain , feed conversion and higher economic return and economic efficiency during the whole fattening period . Mansoura University, Faculty of AgricultureJournal of Animal and Poultry Production2090-364271120161101Nutritional Studies to Evaluate the Productivity and Quality of Preserved New Variety of Hybride Maize Silage on : 1- Milk Production and Its Composition,Some Rumen and Blood Parameters, Feed Utilization and Economical Efficiency in Lactating Zaribi Goats .4234314875110.21608/jappmu.2016.48751ENM. R. M.SalehAnimal Production Research Institute, Agriculture Research Center, Dokki , EgyptJournal Article20190921This experiment was carried out to study the effect of a new variety of hybrid El-Ryanah maize x El-Shamia maize as silage alone or mixture with berseem (1:1) on milk production ,milk constituents, rumen microorganisms , hematological parameters and economic efficiency by lactating zaribi goats .Twenty four lactating zaribi goats 30 month old and weighed 40.93±0.36 kg were divided into three similar groups and randomly assigned to three experimental diets. Animals in all groups were fed a concentrate feed mixtures(CFM) to cover 50 % of protein diet according to (NRC,1989) requirement. Addition to <em>ad libitum</em> supplement of hybrid maize silage alone or mixtures with berseem , where 100 % berseem silage was offered to group<sub>1</sub> (T<sub>1</sub>) ,100 % hybrid maize silage for group<sub> 2</sub> (T<sub>2</sub>) and 50 % berseem silage+50% hybrid maize silage for group<sub>3 </sub>(T<sub>3</sub>). The experiment lasted for 120 days (Lactating period).The results obtained indicated that (T2) characterized by high OM , CP and NFE % and low of DM , EE , CF and Ash % than those of T1 and T3 rations .While ,mixture of hybrid maize and berseem silage (T3) generally had higher values of DM and Ash . At the same time, T1 ration recorded higher values of EE and CF and lower values of NFE % than those of T2 ration .However, data of fiber fractions clearly showed that T<sub>1</sub> ration had higher values of NDF, ADF, celluloses and ADL ( 31.5 , 23.7 , 8.20 and 15.50 % respectively). Moreover, the concentration of fiber and fiber fractions were negatively related to quality because forages had higher fiber and less available energy and are consumed with a few amounts by goats than that with low fiber content. Meanwhile , the average DM as g/kg BW or w<sup>0.75 </sup>decreased with T<sub>2</sub> (38.2.and 97.1) compared with T<sub>1 </sub>(39.9 and 101.5) and T<sub>3 </sub>(4.16 and 105.3 respectively) .Feed conversion as DM and CP(intake / kg milk yield) were better with T<sub>2</sub> (1.14 and 237 ) and T<sub>1</sub>(1.43 and 245 ) compared with T<sub>3 </sub>(1.34 and 239 respectively).Whereas, digestion coefficients of T<sub>2</sub> ration recorded significantly (p>0.05) the highest digestibility coefficients of CP , CF , EE , NFE and GE ( 76.94 , 64.91 ,74.82 ,74.13 and 66.25 respectively) while , T<sub>3 </sub>had higher values of DM , OMand lower of CP, EE, CF and GE ( 70.62 ,74.32, 74.91, 61.88, 72.94 , 72.24 and 64.17 respectively) and the lowest values had detected with T<sub>1</sub> ration ( 68.97,71.37 , 75.28 , 63.17 , 72.56 , 71.61and 63.31 respectively ) . As milk yield , the results showed that the higher actual daily milk yield (ADMY) and 4% fat corrected milk yield (FCMY)were obtained with of dairy zaribi goats fed tested rations T2 (1.390 , 1.350 kg /d respectively ) than of those fed T1(1.168,1.119 kg/d ,respectively) and the lowest values were recorded with T3 ration (1.274 and 1.206 respectively). Moreover,T2 ration were significantly (p>0.05) increase of fat , total solid, total nitrogen, lactose and Net Energy (3.81 ,13.40 , 7.30 ,5.31 and 1.60 respectively), but it recorded the lowest values with % protein and solid nonfat (3.38 and 9.59 respectively) than those of other experimental treatments . Blood hematology explain that T3 ration had the lowest values of RBC, hemoglobin, MCV, MCH , MCHC , total protein , globulin , serum glucose and urea-N comparison of T1 and T2 rations. In addition, the results of economic efficiency were clearly that goats fed T2 ration had the highest value ( 12.03 %) and T3 ration ( 6.65) , whereas T1 ration had the lowest value. Mansoura University, Faculty of AgricultureJournal of Animal and Poultry Production2090-364271120161101Effect of Different Sources of Carotenoids on Growth Performance, Stress Response, and Flesh Quality in Fingerlings Grey Mullet, Liza ramada in Cultured Floating Cages4334384875210.21608/jappmu.2016.48752ENN. El-BermawiFaculty of Agriculture (Saba Basha), Alexandria University, EgyptT. SrourFaculty of Agriculture (Saba Basha), Alexandria University, EgyptOmayma E.ShaltoutFaculty of Agriculture (Saba Basha), Alexandria University, EgyptA. H.Badr EL-DinFaculty of Agriculture (Saba Basha), Alexandria University, EgyptJournal Article20190921The present study was conducted to evaluate the sutability of carotenoid sources (tomato powder, 20, 40 and 60 g / kg; pepper powder, 30, 60 and 120 g / kg and Synthetic Astaxanthin (vit A) at 70, 75 and 80 mg / kg, respectively on growth performance, stress response, feed utilization, body composition, and final flesh quality of <em>Liza ramada</em>. A total number of 20<em> Liza ramada</em> (4 g) were randomly distributed into 20 hapas, and were fed daily at a rate of 5 % of fish live body weight through 90 days, each treatment group was applied at two replicates. The results showed that the effect of Synthetic Astaxanthin (vit A) (80 mg) was highly significant among all the other treatment in FBW, ADG, BWG, SGR, and PER. Pepper powder at 30g showed a high significant crude protein % (58.15±0.15) among all the other treatments. The TBARS values in <em>Liza ramada </em>flesh showed a significant decrease among all carotenoid sources as the time of frozen storage elapsed as compared to control. The effect of Paper powder at 120 g was highly significant from the other treatment in carotenoid flesh content while the control didn't record any deposit of carotenoids. The study demonstrated that the carotenoids sources showed significant effect on survival, growth performance, feed utilization and TBARS values.