Population growth of the Tellinid bivalve tellina foliacea in the Hendijan Coast, Persian Gulf     

Negar G  Zohre G  Habib N 《Pakistan journal of biological sciences: PJBS》2008,11(5):788-792

Length-frequency and growth of one of the dominant species, Tellina foliacea (Linnaeus, 1758) (Bivalve, Tellinidae) in the Hendijan coast, Khuzestan province (Persian Gulf) were studied from summer 2005 to spring 2006. Sampling was done seasonally with vanveen grab from 5 stations. Stations were located 0.5 mile apart and samples were collected from approximately 8 m depth. The population structure presented a size range between 0.5 and 6.5 mm length, being mainly formed by individuals 3 to 4 mm, that were dominant in winter. Recruitment rate was low and the major contribution of recruits was found in spring. Growth parameters of the Von Bertalanffy growth function were estimated to be L = 7.70 mm, K = 1.200 y(-1), t0 = 0.9 y.  相似文献   

The effect of hatching time on the bioenergetics of northern pike (<Emphasis Type="Italic">Esox lucius</Emphasis>) larvae from a single egg batch during the endogenous feeding period     

Awatef Trabelsi  Andrzej Jaworski  Ewa Kamler  Jean-Noël Gardeur  Fabrice Teletchea  Habib Ayadi  Pascal Fontaine 《Fish physiology and biochemistry》2016,42(2):593-606

Size, caloric value and chemical composition were measured separately in the progeny of two northern pike (Esox lucius) females at 3-day intervals during the endogenous feeding period from hatching to final yolk resorption. Tissue, yolk and entire larvae were analysed separately in three groups of larvae that hatched at different times (between 88 and 106 degree-days post-fertilization). An integrated approach with the Gompertz model was used to compute the yolk conversion efficiency and time to maximum tissue size in early, mid and late hatched larvae. At hatching, unresorbed yolk of early hatched larvae contained more energy (39.20 J) and more protein (0.99 mg) compared to the yolk of larvae that hatched later (38.13 J and 0.92 mg protein for late hatched larvae, p < 0.05). In contrast, a significant reduction in tissue weight (?0.7 mg DW) and protein content (?0.5 mg) was found in early hatched larvae compared to those which hatched later (p < 0.05). Between days 9 and 12 post-hatching (108 and 144 degree-days post-hatching), close to the final yolk resorption, late hatched larvae stopped growing and their tissue began to be resorbed. This tissue resorption time was delayed in early hatched larvae which presented at the end of the experiment a greater tissue weight than late hatched ones. Yolk conversion efficiency in term of energy from hatching to complete yolk resorption stage was significantly higher for early and mid hatched larvae (51 %) compared to late hatched ones (44 %) (p = 0.004). Furthermore, the time to maximum tissue size was found to be negatively related to hatching time which implies that early hatched larvae take longer time to switch from one developmental stage to the next. The maximum tissue dry weight and energy content were found to be reached at approximately the same age post-fertilization for both early hatched and late hatched larvae, suggesting that the principal steps in a fish’s lifespan are better correlated with time of fertilization than hatching time.  相似文献   

Near-isogenic lines developed for a major QTL on chromosome arm 4HL conferring Fusarium crown rot resistance in barley     

Ahsan Habib  Sergey Shabala  Lana Shabala  Meixue Zhou  Chunji Liu 《Euphytica》2016,209(3):555-563

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Ethnoveterinary study of medicinal plants in Malakand Valley,District Dir (Lower), Khyber Pakhtunkhwa,Pakistan     

Habib ul Hassan  Waheed Murad  Akash Tariq  Ashfaq Ahmad 《Irish veterinary journal》2014,67(1):6

Background

The Malakand valley of District Dir (Lower) is endowed with a diverse plant wealth. Ethnoveterinary knowledge provides the traditional medicines of livestock that are cheaper than standard treatment and are easily accessible.

Methods

The present study was conducted to document the traditional knowledge of ethnoveterinary practices in Malakand valley, District Dir (Lower). Data was collected from February 2012 to January 2013 by interviewing 120 inhabitants through semi-structured questionnaires. Different questions were asked to collect appropriate data regarding the use of plants for livestock treatment. Direct matrix ranking (DMR) was carried out to find out the use diversity of medicinal plants.

Findings

A total of 28 plants belonging to 23 families were collected and identified for the treatment of livestock in the study area. Majority of the plants were collected from wild (68%) habitat and very few from cultivated sources. The leaves (28%) were identified as the major plant part for herbal preparations. The most frequent ailments of livestocks in the study area were stomach disorders and Charmaikh (local disease name). Various ingredients were used along with ethnoveterinary medicines i.e. sugar, flour, milk etc. The elder people of the village had a rich knowledge as compared to the young generation. According to DMR output, Monotheca buxifolia ranked first and Dalbergia sisso and Melia azedarach ranked second due to high multipurpose uses among all species and was found most threatened in the study area.

Conclusion

It has been concluded that the native of the region heavily dependent on medicinal plants for the treatment of variety of livestock ailments. Traditional knowledge always provides a baseline for further phytochemical and pharmacological investigation. The documentation of the ethnoveterinary practices in study area was necessary before this precious knowledge is lost forever due to rapid socioeconomic, environmental and technological changes.  相似文献   

Simultaneous quantification of vitamin E and vitamin E metabolites in equine plasma and serum using LC-MS/MS     

Hadi Habib  Carrie J. Finno  Ingrid Gennity  Gianna Favro  Erin Hales  Birgit Puschner  Benjamin C. Moeller 《Journal of veterinary diagnostic investigation》2021,33(3):506

Vitamin E deficiencies can impact normal growth and development in humans and animals, and assessment of circulating levels of vitamin E and its metabolites may be an important endpoint for evaluation. Development of a sensitive method to detect and quantify low concentrations of vitamin E and metabolites in biological specimens allows for a proper diagnosis for patients and animals that are deficient. We developed a method to simultaneously extract, detect, and quantify the vitamin E compounds alpha-tocopherol (α-TP), gamma-tocopherol (γ-TP), alpha-tocotrienol (α-TT), and gamma-tocotrienol (γ-TT), and the corresponding metabolites formed after β-oxidation of α-TP and γ-TP, alpha-carboxymethylbutyl hydroxychroman (α-CMBHC) and alpha- or gamma-carboxyethyl hydroxychroman (α- or γ-CEHC), respectively, from equine plasma and serum. Quantification was achieved through liquid chromatography–tandem mass spectrometry. We applied a 96-well high-throughput format using a Phenomenex Phree plate to analyze plasma and serum. Compounds were separated by using a Waters ACQUITY UPLC BEH C18 column with a reverse-phase gradient. The limits of detection for the metabolites and vitamin E compounds were 8–330 pg/mL. To validate the method, intra-day and inter-day accuracy and precision were evaluated along with limits of detection and quantification. The method was then applied to determine concentrations of these analytes in plasma and serum of horses. Alpha-TP levels were 3–6 µg/mL of matrix; the metabolites were found at much lower levels, 0.2–1.0 ng/mL of matrix.  相似文献   

Characterization of sand fly breeding sites in district Malakand,Khyber Pakhtunkhwa,Pakistan, and evaluation of risk factors for cutaneous leishmaniasis in the region     

Khurshaid Khan  Nazma Habib Khan  Farhat Anwar  Ihtisham Ullah  Noor Badshah  Irfan Irfan  Khalid Iqbal  Ibrar Shah  Shah Tariq Aziz  Muhammad Shahid Naseem Khan  Safeer Ullah Shah 《Zoonoses and public health》2022,69(1):33-45

Present study was carried to determine the sand fly species composition, breeding sites ecology, seasonal abundance, and spatial distribution in district Malakand, Khyber Pakhtunkhwa, Pakistan. In addition, risk factors associated with cutaneous leishmaniasis (CL) were also evaluated. Survey of indoor and outdoor habitats was carried out using sticky traps in 31 villages of Dargai and Batkhela tehsils of Malakand. Soil from habitats of adult and immature sand flies was analysed. Questionnaire-based household survey was also performed in these villages to assess risk factors associated with CL. Soil samples from selected CL positive households were analysed for its contents. Additionally, clinicoepidemiological data from local health centres was examined for the year 2019. Total of 3,140 sand flies belonging to 18 species were collected. Phlebotomus sergenti was the most abundant species (38.16%). Its abundance had a strong positive correlation with mean monthly relative humidity and negative correlation with average temperature. Phlebotomus sergenti and Phlebotomus papatasi were abundant at an elevation ranging from 320 to 1,120 m above sea level and in agricultural lands near human settlements. Flight height preference apparatus collected maximum sand flies at 30 cm (1ft) above the ground and all species associated negatively with height. Soil analysis from habitats of adult and immature flies showed that highest mean number of adults and immatures were recorded from silt loam which carried highest concentrations of K₂O, Mg, Ca, and Zn. Number of immature sand flies correlated moderately (r = .7, p < .05) with K₂O soil concentrations. There was significant similarity between organic matter contents in soil samples from positive breeding sites and CL households (Wilcoxon rank-sum test, p = .1976). In multivariate analysis model for CL risk factors, age (26–35 and >35 years), knowledge of leishmaniasis, living in a middle and upper class, preachers visit to villages, and assumption that Afghan refugees are more prone to CL were significant. CL patient's archived data from health centres showed that majority of patients had lesions on face and hands. Patient's influx was highest in February and March.  相似文献   

An experimental test of a nitrogen uptake and partitioning model for young trees     

Habib R  De Cockborne AM  Monestiez P  Lafolie F 《Tree physiology》1989,5(4):403-421

Simulation models of nitrate uptake and total nitrogen partitioning during the exponential growth phase of one-year-old peach trees (Prunus persica (L.) Batsch.) were tested in an experiment with 88 plants grown in soil-filled containers. Plants were fertilized with (15)N-NO(3) (-) and nitrate uptake estimated by periodic destructive analysis of plants for excess (15)N. Partitioning of N within the trees was followed by the analysis of plant parts for total N and (15)N. The nitrate uptake model, which provides one of the main inputs to the partitioning model, is based on a simplified form of the Michaelis-Menten equation adapted to describe uptake by roots growing in soil layers. The nitrogen partitioning model considers each plant part (e.g., roots, trunk, shoots, leaves) as either a sink or a source for nitrogen. The model uses a flow equation, which is the same for all plant parts, to model the dynamics of nitrogen partitioning in the tree using increases in dry matter of various plant parts as driving force variables. The experiment demonstrated an error in the compartment organization of the partitioning model as a result of which the model failed to simulate changes in root N. A modification of the partitioning model structure to take account of the importance of trunk nitrogen reserves for root growth at the beginning of the growing season, which was indicated by the (15)N data, greatly improved prediction of root N. This modification is discussed in relation to the modeling approach.  相似文献   

Comparative functional genomics of the fission yeasts     

Rhind N  Chen Z  Yassour M  Thompson DA  Haas BJ  Habib N  Wapinski I  Roy S  Lin MF  Heiman DI  Young SK  Furuya K  Guo Y  Pidoux A  Chen HM  Robbertse B  Goldberg JM  Aoki K  Bayne EH  Berlin AM  Desjardins CA  Dobbs E  Dukaj L  Fan L  FitzGerald MG  French C  Gujja S  Hansen K  Keifenheim D  Levin JZ  Mosher RA  Müller CA  Pfiffner J  Priest M  Russ C  Smialowska A  Swoboda P  Sykes SM  Vaughn M  Vengrova S  Yoder R  Zeng Q  Allshire R  Baulcombe D  Birren BW  Brown W  Ekwall K  Kellis M  Leatherwood J  Levin H  Margalit H  Martienssen R 《Science (New York, N.Y.)》2011,332(6032):930-936

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Increased calcium availability improves potato micropropagation and microtuberization   总被引：1，自引：0，他引：1  

Ahsan Habib  Jihad Abdulnour  Danielle J. Donnelly 《Potato Research》2004,47(3-4):139-149

Summary Liquid scintillation counting (LSC) was used to screen six potato cultivars (Alpha, Bintje, Green Mountain, Kennebec, Russet Burbank, and Shepody) and two wild species(S. microdontum andS. kurtzianum) for ability to take up the tracer⁴⁵Ca²⁺ from treatment solutions containing high (15 mM) or low (5 mM) Ca²⁺ levels. In vitro potato micropropagation, microtuberization, and tissue calcium content, determined by flame atomic absorption spectrophotometry (FAAS), were compared for the six cultivars when Murashige-Skoog basal medium Ca²⁺ level was increased from 3, to 5 or 15 mM. All aspects of growth were improved when medium Ca²⁺ level was 15 mM. Microtuber induction occurred earlier, leading to improved yield (19–31%), and microtuber tissue Ca²⁺ concentration was greater (38–226%). Cv. Bintje was the most efficient genotype at accumulating Ca²⁺ from treatment solutions or growth media containing high or low Ca²⁺ levels. It could be identified as a calcium-packer using either LSC or FAAS screening.  相似文献   

The effect of infrared stabilized rice bran substitution on physicochemical and sensory properties of pan breads: Part I     

N. Barış Tuncel  Neşe Yılmaz  Habib Kocabıyık  Ayşen Uygur 《Journal of Cereal Science》2014

Infrared stabilized rice bran (SRB) substitution to white wheat, wheat bran and whole grain wheat breads at the levels of 2.5, 5.0 and 10.0% was evaluated in terms of proximate composition, crumb color, dietary fiber, texture and sensory attributes. An increasing tendency was observed in crude fat and ash content of the breads. Redness (+a*), yellowness (+b*) chroma and redness (a*/b*) values were increased gradually with the addition of SRB. Crumb color was found to be darker when 10% of SRB was added to the breads. SRB inclusion did not affect the content of soluble dietary fiber while it significantly increased the insoluble and total dietary fiber contents of the breads (p < 0.05). In general, whole grain wheat bread differed from the other bread types in terms of textural behavior. Based on the overall acceptability scores, white wheat and wheat bran breads were sensory accepted up to 10% of flour replacement with rice bran, while substitution levels higher than 2.5% negatively affected the sensory scores of whole grain wheat bread.  相似文献