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71.
Youssef A. Attia Fulvia Bovera Abd El-Hamid E. Abd‐Elhamid Serena Calabr Mohamed A. Mandour Mohammed A. Al‐Harthi Sabar S. Hassan 《Journal of animal physiology and animal nutrition》2019,103(3):947-958
Sixty‐four nulliparous female rabbits were distributed among eight groups (eight animals/group). Group one was the unsupplemented control group; the other seven groups were supplemented with zinc bacitracin (ZnB) at 100 mg, or bee pollen (BP) and/or propolis (Pro) at 150 and 300 mg in a capsulated form, three times a week, day after day, continuously all over the experimental period. The experiment was run for eight parties; at each parity, 28 kids of each doe group (a total of 224 rabbits) were divided into two subgroups weaned, respectively, at 24 and 30 days of age. Thus, for each parity, there were 16 groups (eight does treatments × two weaning age, 14 rabbits per group). The growing rabbits fed the standard diets without supplements. The growth performance, the carcass traits, the liver and the spleen histology of rabbits were checked up to 90 days of age to find possible carryover effects of the supplements. The supplements had no significant effect on most of the growth performance at 90 days of age, but BP150 and BP+Pro300 increased the growth rate in comparison with ZnB group. The liver weight in the control, BP300 and Pro300 groups was higher than the ZnB one. The spleen weight was higher in the groups ZnB, BP150, Pro300 and BP+Pro300, followed by the control, BP300 and BP+Pro150 and thus Pro150. The heart % in the BP150 and Pro300 groups was higher than ZnB and BP+Pro150 groups. A lymphoid hyperplasia of splenic white pulp was observed in the BP+Pro groups, while propolis alone showed a mild activation of lymphobiosis. The Pro and BP groups showed the same picture of the control group exhibiting a hydropic degeneration of mostly hepatic cells, while the ZnB group exhibited adverse effect on the bile ducts featuring portal periductal inflammatory cells infiltration with epithelial hyperplasia reflecting chronic cholangitis. 相似文献
72.
Youssef A. Attia Fulvia Bovera Abd El‐Hamid Abd Elhamid Sameer A. Nagadi Mohamed A. Mandour Saber Sh. Hassan 《Journal of animal physiology and animal nutrition》2019,103(3):959-968
To evaluate the effect of bee pollen (BP) and/or propolis (Pro) supplementation on rabbit does, 64 nulliparous NZW rabbits does were distributed among eight groups (eight animals/group). One unsupplemented group was the control; the other seven groups were supplemented, respectively, with zinc bacitracin (ZnB) at 100 mg, BP at 150 and 300 mg, Pro at 150 and 300 mg, BP+Pro at 150 and 300 mg of each three times/week, day after day continuously along eight parities. The BP300, Pro300 and BP+Pro150 groups had higher body weight of litter at birth and number of kids born alive. The BP supplementation at 150 mg increased plasma total protein and albumin than the control group. The BP or Pro at 150 mg decreased plasma T3 than the other groups except for BP+Pro150. The ZnB group had significantly greater T3/T4 ratio compared to BP, Pro and BP+Pro at 150 mg. The BP+Pro150 group had less ALT than the control; BP300 and Pro 300 mg resulted in lower plasma AST than the groups Pro150 with or without BP and the control group. The plasma alkaline phosphatase of BP at 150 or 300 mg and BP+Pro150 was significantly greater than that of the Pro150 group. The BP+Pro300 group had higher WBCs than the other groups. In contrast, the lymphocytes were greater in the Pro and BP+Pro300 groups than in BP, Pro and BP+Pro at 150 mg. The groups supplemented with BP and BP+Pro at 150 and 300 mg had significantly greater SRBCs of doe rabbits and their offspring compared to the control and the ZnB group. The BP at 300 mg increased the serum albumin and α1‐globulin than the control group. The Pro300 group had greater serum α2‐globulin and β‐globulin than the control group. The total globulin was significantly greater for the 300 mg propolis‐supplemented groups than the control. 相似文献
73.
Ahmadi Ebrahim Nazari Hassan Hossini-Fahraji Hamid 《Tropical animal health and production》2019,51(6):1611-1618
Tropical Animal Health and Production - Heat stress can potentially affect most aspects of reproduction in mammals. To our knowledge, no studies have ever been conducted for evaluating the... 相似文献
74.
Suriya R Hassan L Omar AR Aini I Tan CG Lim YS Kamaruddin MI 《Zoonoses and public health》2008,55(7):342-351
Following a series of H5N1 cases in chickens and birds in a few states in Malaysia, there was much interest in the influenza A viruses subtypes that circulate among the local pig populations. Pigs may act as a mixing vessel for avian and mammal influenza viruses, resulting in new reassorted viruses. This study investigated the presence of antibodies against influenza H1N1 and H3N2 viruses in pigs from Peninsular Malaysia using Herdcheck Swine Influenza H1N1 and H3N2 Antibody Test Kits. At the same time, the presence of influenza virus was examined from the nasal swabs of seropositive pigs by virus isolation and real time RT-PCR. The list of pig farms was obtained from the headquarters of the Department of Veterinary Services, Malaysia, and pig herds were selected randomly from six of 11 states in Peninsular Malaysia. A total of 727 serum and nasal swab samples were collected from 4- to 6-month-old pigs between May and August 2005. By ELISA, the seroprevalences of swine influenza H1N1 and H3N2 among pigs were 12.2% and 12.1% respectively. Seropositivity for either of the virus subtypes was detected in less than half of the 41 sampled farms (41.4%). Combination of both subtypes was detected in 4% of all pigs and in 22% of sampled farms. However, no virus or viral nucleic acid was detected from nasal samples. This study identified that the seropositivity of pigs to H1N1 and H3N2 based on ELISA was significantly associated with factors such as size of farm, importation or purchase of pigs, proximity of farm to other pig farms and the presence of mammalian pets within the farm. 相似文献
75.
棉秆切碎及压缩成型的试验研究 总被引:9,自引:1,他引:8
采用3种不同切碎方法,即锤片切碎、螺旋刀切碎和直刃刀切碎进行了棉秆切碎的性能研究。试验结果表明,直刃刀对青棉秆的一次切碎,能获得细小颗粒产量高、能耗低的满意效果。切碎物料在英国Shimada螺旋压缩机上进行热压成型试验。成型燃料质量指标的测定结果表明,切碎物料含水率在8%~12%,加热温度在120~150℃,最大粒度控制在12.5mm以下,能获得密度为1.13~1.21g/cm3、低位热值为18.34MJ/kg的优质棉秆成型燃料。 相似文献
76.
镉胁迫对不同水稻基因型植株生长和抗氧化酶系统的影响 总被引:61,自引:6,他引:61
以籽粒镉积累水平不同的两种品种(丙97252,低积累型;秀水63,高积累型)为材料,研究了镉胁迫对水稻植株生长和抗氧化酶系统的影响。采用水培试验,镉处理设0.0、0.1、1.0和5.0 μmol/L 4个水平。结果表明,镉胁迫抑制植株生长和叶绿素合成,改变植株丙二醛(MDA)含量和超氧物歧化酶(SOD)、过氧化氢酶(CAT)、过氧化物酶(POD)活性。在抗氧化酶活性上,根和地上部对镉胁迫的反应存在着差异。总体上,SOD、CAT和POD活性随镉水平的提高而减少,而MDA含量则表现相反。根和地上部MDA含量随着培养液中镉浓度提高而增加,且增加幅度秀水63明显大于丙97252。与对照相比,生长在5.0 μmol/L Cd处理下的植株, SOD活性在孕穗期下降46%~52%,在分蘖期仅下降13%~19%。高浓度镉胁迫下,两品种在MDA含量的增加幅度和叶绿素含量的降低幅度上表现不同,显示出它们对镉的耐性存在着差异。 相似文献
77.
Adnan Abbasi Amin Oujifard Mansour Torfi Mozanzadeh Hassan Habibi Mahmoud Nafisi Bahabadi 《Aquaculture Nutrition》2020,26(4):1131-1142
A 56‐day nutritional research was performed to examine the influence of alternative vegetal protein and lipid sources on performance of yellowfin seabream fry (Acanthopagrus latus) (0.5 ± 0.0 g). In this regard, five isoproteic (Ca. 500 g/kg) and isolipidic (Ca. 150 g/kg) diets were formulated in which fish meal (FM) and fish oil (FO) were simultaneously replaced with blends of plant proteins (PP, soybean meal and corn gluten) and vegetal oils (VO, canola and soybean oils) at 20% (SR20), 40% (SR40), 60% (SR40) and 80% (SR80) levels, respectively; meanwhile, a control diet (SR0) was formulated based on FM and FO. Growth and feed utilization were not influenced by experimental diets. The fatty acid profile of fillet drastically altered by dietary treatments. Fish fed with the SR60 and SR80 feeds had higher total protease, trypsin and α‐amylase activities than other treatments. The antioxidant enzyme activities and glutathione content in liver were enhanced in fish fed with the SR40, SR60 and SR80 diets. Skin mucosal immune parameters including total protein content, alkaline phosphatase and alternative complement pathway activities in the control group were relatively lower than the vegetal treatments. According to these results, it is recommended that 410 g/kg of FM and 45 g of FO/kg can be replaced with alternative vegetal sources in diet for A. latus fry. 相似文献
78.
Tazbidul Nawas Md Shofiul Azam Abuubakar Hassan Ramadhan Yanshun Xu 《Journal Of Aquatic Food Product Technology》2019,28(1):49-63
This study aimed to microencapsulate silver carp oil by spray drying with different combinations of wall materials (gum Arabic, modified starch Hi-cap, maltodextrin, and inulin) and evaluate the effects of these combinations on the physiochemical and oxidative stability of the microcapsules. Feed emulsions were also investigated prior to spray drying. Modified starch-based microcapsules had higher encapsulation efficiency (91.22-92.78%) and yield (87.41-92.15%), excellent solubility (91.85-93.67%), good particle size (301.20-407.73 d.nm), color, and powder morphology. The presence of inulin reduced agglomeration in powders. All the powders exhibited good protection against lipid oxidation during 2 months of storage, whereas the modified starch and inulin combination provided the best stability. 相似文献
79.
Bitalebi Sedighe Nikoo Mehdi Rahmanifarah Kaveh Noori Farzaneh Ahmadi Gavlighi Hassan 《International Aquatic Research》2019,11(2):135-146
International Aquatic Research - The aim of this study was to use apple peel extract (APE) as antioxidant for inhibition of lipid and protein oxidation in rainbow trout (Oncorhynchus mykiss) mince... 相似文献
80.
Exogenous application of thiamine (vitamin B1) during imbibition improved germination and seedling development of bean (Phaseolus vulgaris L. cv. Lasso) seeds, which were exposed to soaking injury by submergence. Leaching of the vitamin into the incubation medium was not increased in submerged seeds. However, translocation of the thiamine reserves from the cotyledons to the seedling axis was reduced in response to soaking injury. After exogenous application of free thiamine to the seeds, thiaminedi-phosphate (TDP), which is the physiologically active coenzyme form of thiamine, accumulated in the seedling axis of submerged seeds, suggesting an increased demand for thiamine-dependent metabolic reactions in these tissues. Limited oxygen supply of the seeds during the soaking period induces a shift from respiration to fermentation of carbohydrates. Neither thiamine-dependent ethanolic fermentation, nor ATP production or adenylate energy charge (AEC) of the seedling axis were affected by exogenous thiamine application, suggesting that there is no limitation of thiamine-dependent reactions in the energy metabolism of the seedlings. Thus the physiological mechanisms improving germination and seedling development of submerged seeds in response to thiamine seed treatment are still not clear. 相似文献