Open Access Original Research Article

Effect of Diets on Growth and Reproductive Performances of Growing Pigs Maintained at Farmer’s Door

A. A. Devi, Deepak Singh, Hemant Kumar

Advances in Research, Page 1-6
DOI: 10.9734/air/2019/v18i430095

Aims: This study was conducted to study the effect of different types of diets on growth and reproductive performances of pigs under village managemental conditions Chandel, Manipur.

Place and Duration of Study: The study was conducted at Krishi Vigyan Kendra, Chandel, ICAR, Manipur Centre between May 2016 to November 2017.

Methods: The present study was carried out on 36 Hampshire crossbred pigs maintained by 12 farm women of Chandel district of Manipur. Each farm women were provided with 3 weaned piglets having 2 females and one male of about 3 months old. Out of which, the 50% (6 family) farm women were maintained their piglets on 40% wheat bran and 60 % rice fermented waste (D1), whereas pigs of rest 50% (6 family) farm women were maintained on 30 % crushed maize, 30 % rice bran and 40 % rice fermented waste (D2). The different parameters like body weight at different stage, age at sexual maturity, age at first farrowing, litter size at birth and litter size at weans were determined.

Results: Analysis of variance showed non-significant influence of diets on weight at various ages. The average initial body weight of piglets mentioned on D1 and D2 diets were 16.86 ± 0.25 and 16.75 ± 0.43 kg, respectively which was increased to 52.17 ± 1.86 and 53.56 ± 0.92 kg within three months of experimental period. Sex had significant influence on weight at 4th and 5th months of age. However, males were heavier than females at all the ages under study, the value at 6 months of age were 54.50 ± 1.66 and 52.04 ± 1.30 kg for males and females, respectively. Influence of diet was found to be non-significant on various reproductive traits. The age at sexual maturity, age at first farrowing, litter size at birth and at weaning  were found to by 8.45 ± 0.23  and 8.23 ± 0.25 months,  12.95 ± 0.33 and 12.66 ± 0.30 months, 7.58 ± 0.31 and 7.75 ± 0.63 and 7.17 ± 0.13 and 7.42 ± 0.29 in D1 and D2 diets, respectively.

Conclusion: The results indicated that the rice fermented waste may be incorporated in pig grower ration upto 60 % level without any adverse effect on their growth and reproductive performance to cut down the cost on pig feed.

Open Access Original Research Article

Genetic Divergance in F2 Generation of Interspecific Hybrids in Grain and Vegetable Purpose Cowpea

Krishnaja R. Nair, S. S. Desai, B. L. Thaware

Advances in Research, Page 1-5
DOI: 10.9734/air/2019/v18i430096

A field experiment was conducted with 25 hybrids and their 14 parents of cowpea to study the diversity among the genotypes which were grouped in to 7 clusters revealing the presence of considerable diversity in the material. The clustering pattern of the varieties usually did not confirm to geographical distribution. Cluster-II got desirable rating in respect of maximum harvest index, seed yield per plant and minimum days to maturity where cluster V got maximum number of pods per plant, green pod yield per plant and dry pod yield per plant where all yield related components that could be directly tested in multilocation trials for their suitability or could be used as a donor parent in breeding programme. The characters like plant height, green pod yield per plant and dry pod yield per plant were found to contribute much to the total genetic divergence in cowpea.

Open Access Original Research Article

Evaluation of Planting Dates on Growth and Yield of Three Cowpea [Vigna unguiculata (L) Walp.] Genotypes in Northern Ghana

M. S. Alidu

Advances in Research, Page 1-14
DOI: 10.9734/air/2019/v18i430097

Background: Time of planting has remarkable influence on both yield and yield components of crops and therefore identification of the appropriate planting time is essential for crop improvement.

Aims: To assess the effect of planting dates on growth and yield of three cowpea genotypes.

Study Design: The study was designed as 3×4 factorial experiments in a randomized complete block design.

Place and Duration of Study: The study was carried in the field over a three-month period at the Savanna Agricultural Research Institute, Tamale-Northern Ghana.

Methodology: The study was designed as 3×4 factorial experiments in split-plot in randomized complete block design. The genotypes were 3 genotypes with 4 planting dates. Treatment combinations were replicated three times.

Results: Analysis of variance indicated significant effects on percentage germination, plant height at flowering, plant height at maturity and at harvest, pods per plant, pod yield and seeds per pod. Padi- tuya performed better than the other two genotypes in terms of performance for grain yield for all the planting dates. However, there were no significant difference between the first planting and second planting date.

Conclusion: Padi-tuya was the most superior variety for grain yield. To achieve higher yields, cowpea should be planted between the middle of July and Early August. Early planting resulted in maturity coinciding with wet period resulting in reduction in quality of seeds. Late planting especially in late August resulted in poor yields.

Open Access Original Research Article

Analytical Solutions to Generalized Nonlinear Schrödinger Equation by Adomian Decomposition Technique

Villévo Adanhounme, Gaston Edah, Norbert M. Hounkonnou

Advances in Research, Page 1-11
DOI: 10.9734/air/2019/v18i430098

We study the higher-order nonlinear Schrödinger equation which takes care of the second as well as third order dispersion effects, cubic and quintic self phase modulations, self steepening and nonlinear dispersion effects. Taking advantage of the initial condition, we transform the
previous equation into a nonlinear functional equation to which we apply a powerful analytical method called the Adomian decomposition method. We compute the Adomian’s polynomials of corresponding infinite series solution. Assuming that the initial condition and all its derivatives converge to zero sufficiently rapidly as the time approaches to infinity, we established the convergence of the previous series. The last part of the paper describes applications resulting from nonlinear propagation phenomena in optical fibers. Numerical simulations are developed and it is further shown that comparison with other results yields a good qualitative agreement. These results demonstrate the robustness of the proposed method.

Open Access Original Research Article

Assessment of Physicochemical Qualities of Oilfield Wastewater in Bayelsa State, Nigeria

Oyibo Ntongha, Wemedo, Samuel Amadi

Advances in Research, Page 1-6
DOI: 10.9734/air/2019/v18i430099

Oilfield wastewater which is not properly treated before being discharged has great negative impacts on the environment and aquatic life and also affects humans. It is necessary to assess the physicochemical qualities of oilfield wastewater to reduce its environmental impact. Oilfield wastewater samples were collected from an onshore oil production platform for a period of eight months (March to October, 2018). These were analyzed for physicochemical parameters and heavy metals using standard methods. Oilfield wastewater gotten from EPU 05 had higher TDS 294.6 mg/l, conductivity 619.0 μS/cm, COD 6.44 mg/l, BOD 2.24, compared to that found from Kolo creek flow station and were significantly different (P>0.05). While, TSS 16.85 mg/l, salinity 175.0 mg/l, turbidity 4.8 (NTU), and THC 1.39 were higher in that of the Kolo creek flow station. There was no significant difference in pH and temperature in the Kolo creek flow station and EPU 05. Higher values of iron 0.46 mg/l, chromium 0.03mg/l, was observed in that of the Kolo creek flow station compared to that of the EPU 05 0.14mg/l. EPU 05 had higher values in zinc 0.09 mg/l, copper 0.12 mg/l, cadmium 0.18 mg/l, mercury 0.08 mg/l and arsenic 0.07 mg/l. All the physicochemical parameters were within the allowable limit recommended by regulatory bodies (eg. WHO, DPR, FMEnv etc.). Regulatory bodies should ensure that companies practice proper waste management and compliance.