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排序方式: 共有952条查询结果,搜索用时 31 毫秒
61.
Yagoub Ael-G Mohamed BE Ahmed AH El Tinay AH 《Journal of agricultural and food chemistry》2004,52(20):6143-6150
Furundu, a meat substitute, is traditionally prepared by cooking the karkade (Hibiscus sabdariffa L.) seed and then fermenting it for 9 days. Physicochemical and functional properties of raw and cooked seed and of furundu ferments were analyzed. Furundu preparation resulted in significant changes in karkade seed major nutrients. Total polyphenols and phytic acid were also reduced. The increase in total acidity and fat acidity coupled with a decrease in pH indicates microbial hydrolysis of the major nutrients; proteins, carbohydrates, and fats. In vitro digestibility of the seed proteins reached the maximum value (82.7%) at the sixth day of fermentation, but thereafter it significantly decreased. The effect of furundu preparation on N solubility profiles and functional properties, such as emulsification and foaming properties and other related parameters, is investigated in water and in 1 M NaCl extracts from defatted flour samples. The results show that cooking followed by fermentation affects proteins solubility in water and 1 M NaCl. The foaming capacity (FC) from the flour of raw seed decreased as a result of cooking. Fermentation for 9 days significantly increased the FC of the cooked seed, restoring the inherent value. Foam from fermented samples collapsed more rapidly during a period of 120 min as compared to the foam from raw and cooked karkade seeds; stability in 1 M NaCl was lower as compared to those in water. In water, the emulsion stability (ES) from the fermented samples was significantly higher than that of the raw seed flour. Addition of 1 M NaCl significantly decreased the ES of the fermented samples. 相似文献
62.
Ould El Kebir MV Barnathan G Siau Y Miralles J Gaydou EM 《Journal of agricultural and food chemistry》2003,51(7):1942-1947
If a great number of rays are fished in the Tropical East Atlantic Ocean for their caudal fins, only a small amount of ray flesh is processed. Among them, three species of rays, Dasyatis marmorata, Rhinobatos cemiculus, and Rhinoptera marginata, from the Mauritanian coast have been investigated for the fatty acid composition of their lipids. Gas chromatography and gas chromatography-mass spectrometry allowed identification of 50 molecules from muscles, livers, and gonads of these fishes. Principal component analysis, starting from >50 samples, reveals significant differences in various fatty acid distributions, related to the species and sex of the sampled fish. Some of them are preferentially present in one sex or in both species, whereas the occurrence of others characterizes the male and female of one or two species. The results show that rays are potential resources of polyunsaturated fatty acids (PUFA) and should be used in the diet of local populations. The lipidic fractions contained a high amount of PUFA (up to 30% of the total), mainly composed of docosa-4,7,10,13,16,19-hexaenoic acid, eicosa-5,8,11,14-tetraenoic acid, and eicosa-5,8,11,14,17-pentaenoic acid. 相似文献
63.
Samir Afram Michael Abdel Hai El Refaii N. McHardy D. G. Rae 《Tropical animal health and production》1989,21(4):218-222
Summary Chronic, undulatingTheileria annulata infection was diagnosed as the cause of severely depressed milk yields in a herd of 44 Friesian cows in Egypt. The herd was divided at random into two groups of 22; one group was injected intramuscularly with a single dose of the experimental antitheilerial drug, buparvaquone, while the other remained untreated. Over the subsequent seven weeks milk yield in the treated group increased to double that of the untreated group (P<0.05). Pyrexia was controlled within two days of injection of buparvaquone and piroplasm parasitaemia was eliminated in one week. It is suggested that treatment of dairy cattle chronically infected withT. annulata using buparvaquone may have the dual beneficial effect of reducing the pathogenic effects of theileriosis, thereby permitting restoration of an impaired immune system, thus increasing resistance to other infections. If a similar effect could be produced inBos indicus cattle inT. annulata endemic areas, treatment of indigenous cattle with buparvaquone could be a useful alternative to the introduction ofBos taurus blood as a way of boosting milk production.
Efecto Sobre La Produccion De Leche Del Tratamiento De La Theileriosis Cronica Con Buparvaquone
Resumen Se diagnosticó infección crónica ondulate deTheileria annulata, en un hato de 44 vacas Friesian en Egipto; la causa fue, la caida severa de la producción láctea. Se dividió el hato al azár, en dos grupos de 22 vacas cada uno; un grupo se inyectó via intramuscular, con una dosis única de la droga experimental buparvaquone y el otro no se trató. Durante las siete semanas subsiguientes, la producción láctea aumentó el doble en el grupo tratado, en relación con el grupo sin tratar (P<0.05). La pirexia fue controlada, dentro de los dos primeros dias después de la inyección de buparvaquone, y la parasitemia por piroplasmas se eliminó en una semana. Se sugiere, que el tratamiento con buparvaquone del genado de leche infectado crónicamente conT. annulata, podría tener doble efecto benéfico, al reducir el efecto patógeno de la theileriosis, permitiendo la restauración del sistema inmunológico, incrementando así la resistencia a otras infecciones. Si un efecto similar se produjera en ganadoBos indicus, en áreas endémicas deT. annulata, el tratamiento del ganado nativo con buparvaquone, podría convertirse en una alternativa a la introducción de sangreBos taurus, para incrementar la producción láctea.
Effet Du Traitement De La Theileriose Chronique Par La Buparvaquone Sur Les Rendements Laitiers
Résumé L'infection chronique et à rechutes àTheileria annulata a été diagnostiquée comme étant la cause de rendements laitiers fortement déprimés dans un troupeau de 44 vaches frisonnes en Egypte. Le troupeau fut partagé, au hasard, en deux groupes de 22; un groupe a reçu par voie intramusculaire, une dose unique d'un médicament antitheileriose expériemental, la buparvaquone, tandis que l'autre n'était pas traité. Pendant les sept semaines suivantes, le rendement laitier du groupe traité a doublé par rapport à celui du groupe non triaté (P<0.05). L'hyperthermie a été contrôlée dans les deux jours suivant l'injection de buparvaquone, et la parantémie à piroplasme éliminée en une semaine. Il est suggéré que le traitement du bétail laitier chroniquement infecté parT. annulata à l'aide de la buparvaquone peut avoir le double effet bénéfique de réduire les effects pathologiques de la theilériose, permettant ainsi la restauration d'un système immunitaire affaibli, ce qui augmente la résistance aux autres infections. Si un effet similaire pouvait être produit chez le bétailBos indicus des régions à endémicitéT annulata, le traitement du bétail indigène avec la buparvaquone pourrait être une alternative utile à l'introduction du sangBos taurus dans le but de stimuler la production laitière.相似文献
64.
The recently developed benzimidazole anthelmintic, oxfendazole, was tested against artificial nematode infestations in Egyptian goats using oral dosing at 4.5 and 2.8 mg/kg. A 100% clearance of mature and immature Haemonchus contortus, Trichostrongylus axei, Ostertagia circumcincta, Coopera curticei, Bunostomum trigonocephalum and Chabertia ovina was obtained at the 4.5 mg/kg level. Very high levels of clearance against the mature worms were obtained at 2.8 mg/kg but the drug was less effective against immature worms at the lower dose rate. PCV, hemoglobin concentration and total erythrocyte counts declined after infection but became significantly (P less than 0.001) raised in treated animal. 相似文献
65.
66.
67.
Uri Bargai VMD AB DVSc Theodor Nobel DVM† Shmuel Pearl DVM† 《Veterinary radiology & ultrasound》1984,25(5):235-239
Ten beef bulls infected with Besnoitiosis were examined radiographically and pathologically. Eight of these were slaughtered soon after diagnosis; two were left for a six-month observation period. The radiographic findings were focal and branching-tree calcification of the testes. Histopathologic examination proved these calcifications to be necrotic sections of the seminiferous tubules. Radiography of the testes as a means of evaluating the fertility status of the infected bull is recommended. 相似文献
68.
Studies on the Physiological Chemistry of the Tibio-Tarsal Synovial Fluid of Healthy Bovines 下载免费PDF全文
S. El. Amrousi M. K. Soliman L. B. Youssef 《Canadian journal of veterinary research》1966,30(9):251-255
The physical properties, chemical composition and cytological content of the synovial fluid of healthy native breed cattle, obtained by tibio-tarsal arthrocentesis, was studied. 相似文献
69.
A.?El HadramiEmail author D.?Kone P.?Lepoivre 《European journal of plant pathology / European Foundation for Plant Pathology》2005,113(3):241-254
The black leaf streak disease (BLSD), caused by Mycosphaerella fijiensis, is the most destructive disease of bananas and plantains around the world. Breeding for resistance is the most promising
strategy to fight this disease especially in small farmer plantations. Mycosphaerella fijiensis produces many phytotoxins such as juglone, which can be used, jointly with field and inoculations under controlled conditions,
for screening banana cultivars for BLSD-resistance. This non-host specific phytotoxin has been shown to act on chloroplasts
and disturbs the proton electrochemical gradient across the plasmalemma membrane. Moreover, an involvement of the oxidative
burst during the interaction has been suggested. The present study was carried out using two cultivars that differed for either
their juglone-responses or their resistance to BLSD (cv. Grande Naine susceptible to BLSD and juglone and cv. Fougamou partially
resistant to BLSD and highly tolerant to juglone). The production of active oxygen species (AOS) and the enhancement of the
enzymatic and/or non-enzymatic AOS-scavenging systems were investigated after treatment of the two cultivars with juglone.
The time-course of AOS-production and AOS-scavenging was shown to be the key difference between these two tested cultivars
after treatment with juglone. Thus, an early release of AOS (O2− radical and H2O2) and a quick stimulation of a preferment anti-oxidant system (superoxide dismutases, catalases, and peroxidases) was observed
for cv. Fougamou as compared to cv. Grande Naine for which a late and weak generation of AOS accompanied by a late stimulation
of the anti-oxidant systems were detected. 相似文献
70.