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11.
Veerle Van Hoeck Mahendra Sonawane Antonio L. Gonzalez Sanchez Iris Van Dosselaer Chris Buyens Dany Morisset 《动物营养(英文)》2020,6(4):480-487
There is evidence to suggest that poultry may have a dietary requirement for metabolically available chromium (Cr) that exceeds the amount provided through wheat soybean meal diets. The objective of the present study was to investigate the effects of dietary supplemental organic Cr from Cr propionate at different dose levels (control = 0 μg/kg, T1 = 200 μg/kg, T2 = 400 μg/kg) on the growth performance, carcass traits, and meat quality of broilers. Weight gain and feed intake of each treatment were recorded at the start and after 14, 28 and 35 d, and feed conversion ratios (FCR) were calculated accordingly. At 35 d of age, birds were randomly selected and euthanized for carcass evaluation. Results of the first trial indicate that both Cr propionate treatments increased final body weight (P < 0.05), feed efficiency (P < 0.05) and body weight gain (P < 0.0001). Furthermore, Cr propionate supplementation improved (P < 0.0001) all carcass characteristics. Interestingly, with increased Cr dosage, carcass yield, dressing percentage and breast meat yield increased linearly (P < 0.0001). The second study reveals that the feed intake in the control group was significantly higher compared to both Cr propionate supplemented groups (T1 & T2). Furthermore, the Cr propionate supplemented T2 group displayed a significantly lower FCR than the control and T1 group (P = 0.027). Finally, Cr propionate supplementation increased the dressing percentage compared to control birds (P < 0.0001). In the third experiment, Cr propionate supplementation (T1 & T2) increased final body weight and decreased FCR compared with the control treatment. These effects were highly significant (P < 0.0001) throughout all feeding phases of the trial. Cr propionate supplementation also increased (P < 0.0001) carcass yield, dressing percentage, breast meat yield, leg and thigh weights compared with the control treatment. In conclusion, growth performance, feed conversion, carcass yield, breast and leg meats of broiler birds can be significantly improved by dietary inclusion of Cr propionate. Cr propionate can be supplemented to broiler birds from 1 d old of age at a level that provides 200 or 400 μg/kg organic Cr and can increase the efficiency of broiler production. 相似文献
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13.
Mahendra P. Darokar Suman P. S. Khanuja Ajit Kumar Shasany Sushil Kumar 《Genetic Resources and Crop Evolution》2001,48(6):555-558
Brahmi (Bacopa monnieri) is atraditional Indian medicinal plant known for its natural nootropicaction of saponins present in large amount in its shoots. Acollection of 24 B.monnieri accessions from differentagro-climatic zones of India and an introduction from Malaysiamaintained in the field genebank at CIMAP was analysed for RAPDvariation. Among the 40 random primers tested, 29 primers generatedone or more polymorphic bands. The number of polymorphic bandsgenerated was primer dependent, ranging from 2 to maximum of 8.Similarity matrices were generated from the RAPD data on the basis ofNei's estimates of similarity indices and dendrograms wereconstructed based on UPGMA clustering. All the accessions were foundto be in the range of 0.8–1.0 of similarity, which isindicative of a narrow genetic base among the various accessions witha medium level of polymorphism. It was possible to differentiateindividual accessions, showing differences in morphological andgrowth properties at DNA level. The observed low levels of geneticvariation were attributed to interplay of sexual and vegetative modesof reproduction and similarity of local environments in habitats ofB. monnieri. 相似文献
14.
Raghavendra Kerur Vishwanath Ramesh Kurubarahalli Bhoothanna Rachana Rajan Remani Mahendra Chowdanayak Singh Surender Kumar Chander Subhash 《Phytoparasitica》2023,51(2):227-239
Phytoparasitica - Thrips are economically important pests of crops and vectors of viral diseases worldwide. Invasion and outbreak of thrips have recently caused havoc in agricultural and... 相似文献
15.
N. S. Shekhawat Sharley Mohnot Mahendra Phulwaria Harish Smita Shekhawat 《Journal of Sustainable Forestry》2013,32(7):620-632
Salvadora oleoides is an ecologically important multipurpose tree of the arid forest that occurs in saline areas of northwest India. The seed of this plant yields non-edible commercially usable oil. Poor seed germination, low seed viability, and increasing industrialization are some of the constant factors which significantly affect the status of the natural population of this plant. Therefore, there is a great need to develop an efficient propagation system using the tissue culture technique. In the present communication, we demonstrate the development of an in vitro propagation system for S. oleoides. Multiple shoots were induced from nodal segments harvested from about 25- to 30- yr-old lopped trees of S. oleoides on MS medium + 0.1 mg L?1 NAA (Naphthalene acetic acid) + 2.5 mg L?1 BA (6-Benzylaminopurine) + additives. The shoots were multiplied by (a) repeated transfer of the mother explants on MS medium + 1.0 mg L?1 BA + 0.1 mg L?1 NAA + additives and (b) subculturing of shoot on MS + 1.0 mg L?1 BA + additives. About 84% shoots rooted ex vitro on soilrite within 3–4 weeks when base (4–5 mm) of shoots was treated with 100 mg L?1 of IBA (Indole-3-butyric acid) for 5 min. The plantlets were hardened successfully in the greenhouse and transferred to the pots and field. To the best of our knowledge, this is the first report of a regeneration protocol for S. oleoides from explants obtained from mature trees. Use of the ex vitro rooting technique for plant production serves as a more economical option as it reduces labor, cost, and time. We suggest that the methods developed and described in this article can be used for large-scale plant production and conservation of germplasm of this tree species. 相似文献
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17.
Surendra Pratap Singh Ram Kumar Mehla Mahendra Singh 《Tropical animal health and production》2012,44(8):1827-1832
Ten dry and pregnant Murrah buffaloes were selected to investigate the effect of Asparagus racemosus feeding on hormones, metabolites, milk yield, and plasma cholesterol levels. The treatment groups of buffaloes were fed with A. racemosus (shatavari) @?150?g/day/animal during prepartum and @?300?g/day/animal during the postpartum period. Blood samples collected on ?6, ?4, ?2-week, day of parturition (0), and +2, +4, and +6-week postpartum were analyzed for plasma total cholesterol, triglycerides, HDL, low-density lipoproteins (LDL), prolactin, cortisol, and blood metabolites. Milk samples collected at weekly intervals (+1, +3, +5, and 7?weeks) were analyzed for total milk fat cholesterol. Prepartum plasma cholesterol concentrations were significantly higher in treatment group over the control (P?<?0.05). Mean plasma triglycerides, LDL cholesterol, HDL cholesterol, glucose, and nonesterified fatty acid (NEFA) levels varied nonsignificantly between groups. Plasma prolactin and cortisol concentrations were significantly (P?<?0.01) more in treatment group than in control group. On day of parturition, plasma prolactin, cortisol, LDL, and plasma total cholesterol were higher (P?<?0.01) in treatment group buffaloes in comparison to control group. A. racemosus feeding significantly (P?<?0.01) increased plasma prolactin, cortisol (P?<?0.01), and milk fat cholesterol (P?<?0.05) without affecting total cholesterol, HDL, LDL, glucose, and NEFA concentrations. The buffaloes of treatment group produced more milk (?@?0.526?kg/animal/day) suggesting thereby that A. racemosus is galactopoietic. It was concluded that feeding of A. racemosus increases plasma prolactin and cortisol and decreased plasma total cholesterol and LDL concentration. 相似文献
18.
Mahendra Kumar Padhi 《Tropical animal health and production》2010,42(7):1395-1403
To evaluate different crosses and purebreds ducks in respect to various economic traits and to estimate different crossbreeding genetic parameters, a 3?×?3 complete diallel cross involving indigenous duck (DD), Khaki Campbell (KK) and White Pekin (WW) were used to produce three purebreds (DD, KK, WW) three crossbreds (DK, DW, KW) and three reciprocals (KD, WD, WK). A total of 609 ducklings produced were reared on deep litter and the females (316 in number) were evaluated for growing and laying period body weight along with the production performance traits. Different crossbreeding genetic parameters were estimated for different traits. All the traits in respect to body weight gain during growing and laying period and different production traits including laying house mortality rate showed significant (p?≤?0.05) difference between different genetic groups. In general, crossbreds perform better than the purebreds for most of the traits studied. General combining ability (GCA), specific combining ability (SCA) and reciprocal effect (RE) were significant (p?≤?0.01) for body weight and production traits. Egg weight showed significant (p?≤?0.01) difference in respect to GCA, SCA and RE for all the ages of measurement except RE for 30th week egg weight. Laying period mortality rate was only significant (p?≤?0.05) for SCA. Most of the crossbreds recorded heterosis rate in desirable direction for majority of the traits. Overall results revealed that the crossbreds perform well in respect to different traits than the purebreds and may be used to take advantage of heterosis. DW performs well in respect to majority of the traits measured and is of importance for commercial exploitation. Further, pure line selection with development of specialised sire and dam line followed by crossing may be of importance to enhance the performances in the crosses. 相似文献
19.
Albillos SM Jin T Howard A Zhang Y Kothary MH Fu TJ 《Journal of agricultural and food chemistry》2008,56(13):5352-5358
The 11S globulins from plant seeds account for a number of major food allergens. Because of the interest in the structural basis underlying the allergenicity of food allergens, we sought to crystallize the main 11S seed storage protein from almond ( Prunus dulcis). Prunin-1 (Pru1) was purified from defatted almond flour by water extraction, cryoprecipitation, followed by sequential anion exchange, hydrophobic interaction, and size exclusion chromatography. Single crystals of Pru1 were obtained in a screening with a crystal screen kit, using the hanging-drop vapor diffusion method. Diffraction quality crystals were grown after optimization. The Pru1 crystals diffracted to at least 3.0 A and belong to the tetragonal space group P4(1)22, with unit cell parameters of a = b = 150.912 A, c = 165.248 A. Self-rotation functions and molecular replacement calculations showed that there are three molecules in the asymmetry unit with water content of 51.41%. The three Pru1 protomers are related by a noncrystallographic 3-fold axis and they form a doughnut-shaped trimer. Two prunin trimers form a homohexamer. Elucidation of prunin structure will allow further characterization of the allergenic features of the 11S protein allergens at the molecular level. 相似文献
20.
Savaliram Goga Ghane Vinayak Haribhau Lokhande Mahendra Laxman Ahire Tukaram Dayaram Nikam 《Genetic Resources and Crop Evolution》2010,57(1):147-153
Indigofera glandulosa Wendl., (Barbada) belongs to the family Leguminosae, subfamily—Papilionoidae and tribe Indigoferae is widely distributed
as weed in India, Indonesia and North Australia. It is an annual herb or sub-shrub growing along roadside and open grassland
areas. The plant produce seeds rich in valuable food ingredients such as proteins, carbohydrates, essential amino acids and
vitamins. The plant is described as nourishing food for human beings and is believed to possess the qualities of a tonic in
Indian medicine. It is highly palatable forage legume; green plants are generally appreciated by domestic animals. Environmentally,
it is utilized for the nitrogen enrichment in degraded soil, as the roots produce nodules fixing atmospheric nitrogen. It
can be grown in dry regions, therefore appears to drought resistant and at low cost. The plant species remains unexploited
although it has high forage and nutritious value. The meagre information on I. glandulosa lead us to explore this neglected and underutilized species to utilize it as food for human beings, forage for animals and
for nitrogen enrichment of the soil. The seed viability and seed germination data revealed seed dormancy associated with the
hard and impermeable seed coat and it could be overcome by treating the seeds with concentrated sulphuric acid for 10–15 min
thus improving the seed germination percentage up to 75%. The result of the present investigation provides preliminary information
on agronomical and morphological traits related to yield and biomass production of I. glandulosa from its natural habitat. In addition the detailed survey about taxonomic characters, distribution, cultivation and utilization
of I. glandulosa has been documented. 相似文献