Some observations on the structure and life-history of Cercaria andhraensis N. Sp.(Trematoda: Echinostomatidae) from the apple snailPila globosa swainson of waltair

The morphology, anatomy and stages in life-history of Cercaria andhraensis n.sp. from the apple snailPila globosa Swainson of Waltair have been described.C. andhraensis has 33 spines which are inconspicuous in the cercaria but are clearly seen in the metacercaria occurring in the snail host itself. The anatomy of the cercarial tail is given in detail. Differences in the tegument of the body and the tail are indicated. The tail tegument more clearly gives the impression that the so-called tegument of trematodes is a modified epidermis. It is suggested that the cercaria and the metacercaria may one day prove to be the stages of either Echinostoma govindum Moghe, 1932, or E. crecci Verma, 1936

Integrated analytical models for flexible manufacturing systems

Product form queueing networks (PFQN) and generalized stochastic Petri nets (GSPN) have emerged as the principal performance modelling tools for flexible manufacturing systems (FMS). In this paper, we present integrated PFQN-GSPN models, which combine the computational efficiency of PFQN and representational power of GSPN by employing the principle of flow-equivalence. We show that FMS that include non-product form characteristics such as dynamic routing and synchronization can be evaluated efficiently and accurately using the integrated models

Growth performance of the seabass Lates calcarifer (Blotch) in sea cage at Vizhinjam Bay along the south-west coast of India

The growth potential of the Asian seabass, Lates calcarifer in floating sea cage was assessed by rearing them in a large HDPE floating cage moored at Vizhinjam Bay, south-west coast of India. Seabass seed (mean weight and mean total length, 2.5 g and 53 mm respectively) were nursery reared in hapas in December 2008, fed on pellet feed and grown to an average size of 28 g and 135 mm in 60 days, with a survival rate of 60%. Subsequently, the juveniles were stocked into the cages at a stocking rate of 60 nos. m-3 in February 2009, fed on trash fish and reared for a period of 112 days during which they grew to an average size of 540 g and 328 mm. Weight gain per day increased from 0.2 g in December 2008 to 7.71 g in May 2009, while SGR decreased from 5.88 to 2.47. The hydrological parameters viz., temperature, pH, salinity, dissolved oxygen and microbial load recorded were at optimal levels for the normal growth of seabass. The results obtained indicated that cage culture of seabass in the sea can provide significant advantages in terms of faster growth and effective utilisation of water volume

Ecological and life-history studies on a strigeid metacercaria (Trematoda: Diplostomatidae) from freshwater fishes of Andhra Pradesh

1. The ecological relationships and life history of a Diplostomulum type of strigeid metacercaria encountered in several fresh-water fishes of Andhra Pradesh are described. 2. The development of the adult strigeid in the pond heron and cattle egret and structure and development of the miracidium have been traced. 3. The adult individuals are identical with Diplostomum ketupanensis Vidyarthi, 1937. It is suggested that D. heronei described by Srivastava (1954) may be a synonym of D. ketupanensis. 4. Attention is drawn to the possible relationship between D. heronei and the metacercaria Diplostomulum pigmentata Singh, 1956, which in its turn appears to be similar to the Diplostomulum in the present study

Observations on transversotrema patialensis (Soparkar, 1924)(Trematoda) from Waltair, Andhra Pradesh (India)

Cercaria patialensis Soparkar, 1924, emerging from the snail Melanoides tuberculatus (Muller) has been encountered at Waltair. The cercariae begin to emerge from the snail at dusk and continue to do so during the period of darkness. Stages resembling the adult but without the development of eggs have been encountered in nature on the fresh water fishes Panchax panchax (Ham. & Buch.) and Esomus danricus (Bleeker). These stages have also been raised experimentally by exposing P. panchax, E. danricus and fingerlings of Catla catla Ham. & Buch. to the cercariae. The cercaria is referable to the genus Transversotrema Witenberg, 1944. It is suggested that there may not be a metacercarial stage in the life-cycle of Transversotrema spp

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Not AvailableBiscuits prepared from the blends containing 0, 10, 20 and 30% of whey protein concentrate (WPC) were evaluated for nutritional, textural and sensory characteristics. The protein and ash contents of WPC containing biscuits were significantly higher than the control (p < 0.05). The protein content of control sample was 5.2%, while it was 14.1% in the 30% WPC containing biscuits. Blending of refined wheat flour with WPC upto 30% did not have any adverse effect on the sensory quality of protein-enriched biscuits. The cutting and compression strengths of the 30% WPC incorporated biscuits were significantly higher than the control. These protein-enriched biscuits can be stored for 60 days at ambient temperature (30-35 degrees C).Not Availabl

Kinetics & Mechanism of Oxidation of Telluruim(IV) by Cerium(IV) in Nitric & Sulphuric Acid Media

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Kinetics of Oxidation of Tellurium(IV) by Cerium(IV) In Perchloric Acid Medium

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