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Journal : Asian Journal of Environmental Research

Investigatory Study of the Growing Effect of African Teak (Pterocarpus erinaceus) Bark in Modified Feed Using Rabbit Onyema, Agu Matthew; Garba, Suleiman Ismail; Yakubu, Shedrach; Inya, Agha Inya; Sylvester, Onyima Chibuike
Asian Journal of Environmental Research Vol. 1 No. 2 (2024): May-August
Publisher : CV. Science Tech Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69930/ajer.v1i2.23

Abstract

A total number of 3 growing rabbits about two weeks old were used in an experiment that lasted for 2 weeks. To investigate the growing effect of Pterocarpus erinaceus on growing rabbits. Three experimental diets, T1, T2, and T3 containing 0 %, 2.5 and 5 % of Pterocarpus erinaceus meal respectively were formulated, and three rabbits were randomly assigned to each diet. Daily feed intake was significantly higher in animals receiving Pterocarpus erinaceus bark meal than in animals on the control diet. Body weight changes of the animals on T1 were significantly higher than those on T2 and T3. The feed conversion ratio was the same in both T1, T2 and T3. The result of this experiment reveals that Pterocarpus erinaceus bark meal can be used in the diet for growing rabbits at a 5 % dietary level to enhance feed intake and weight gain thereby growing rabbits without compromising feed efficiency. The insight from the medicinal point of view makes the feed potent for ailment treatment and enhances both PCV and Hb. The initial PCV before the administration of the feed was for T1; 20.30 %, T2; 20.70 %, and T3; 21.68 %. After the administration of the feed, the final PCV was for T1; 24.60 % T2; 27.20 %, and T3; 28.20%. In the case of Hb, the initial Hb for T1 was 6.8, T2 was 6.9 and T3 was 7.2 whereas, after the administration of the feed, the final Hb for T1 was 8.2 g/dL, T2 was 9.2 g/dL and T3 was 9.4 g/dL. The use of Pterocarpus erinaceus as a natural source in meal preparation may help to reduce cost of feed preparation, improve, maintain and supplement to meet daily requirements of essential nutrients by reducing the use of synthetic food supplements.
Eco-Friendly Remediation: Tea Leaves and Fibres as Adsorbents for High Cobalt Concentrations; Thermodynamics, Isotherms and Kinetic Studies E. Etim, Emmanuel; Yakubu, Shedrach; C. Onaji, Emmanuel
Asian Journal of Environmental Research Vol. 1 No. 1 (2024): January-April
Publisher : CV. Science Tech Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69930/ajer.v1i1.9

Abstract

Increasing industrialization has produced huge amounts of liquid effluents, which are a key source of ecological unrest in diverse ecosystems. The high toxicity level of cobalt in surface water has drawn a lot ofattention; hence,a low-cost adsorbent made from leaves and fibres of Camellia sinensis has been developed to remove cobalt from wastewater. The kinetics of the pseudo-first and second-order sorption interaction, as well as the physicochemical parameters of the precursor adsorbent, was investigated. There was a linear relationship between Cobalt uptake and biosorbent dosage under ideal conditions; the optimum dosage was 4 g. Between 10 to 40 minutes of contact time, clearance of cobalt was greater than 90 per cent. The Gibb’s free energy (∆Go) at various temperatures ranges from -9980 to -1020, indicating a spontaneous system, viable for both parts of the precursor adsorbent. The entropy change (∆So) was found to be +31.05 and +35.12 for tea leaves and fibre respectively, implying a highly disordered biosorption interface. The enthalpy (∆Ho) was found to be-8.58 and -10.03 for tea leaves and fibres hence, an exothermic system was suggested by the enthalpy with a second order kinetics. Therefore, Camellia sinensis is a suitable adsorbent for the effective removal of high cobalt concentrations in wastewater.