Skip to main content

Efficacy of Probiotics in Improving Water Quality and Bacterial Flora in Fish Ponds | Chapter 02 | Theory and Applications of Microbiology and Biotechnology Vol. 2

Fish culture aimed at high production through intense culture practices often leads not only to the alteration in water quality but also to severe disease problems. The accumulation of organic wastes deteriorates water quality and encourages the proliferation of pathogenic microorganisms. To avoid these problems, probiotics are used as bioremediation tool. The present study was aimed to know the changing patterns of beneficial and pathogenic bacterial loads and water quality in fish ponds treated with pond probiotics. For this study, three earthen fish ponds, were cultured Pangasius sutchi, Catla catla and Labeo rohita, located in Balliparru near Machilipatnam in Krishna District, Andhra Pradesh, India were selected and studied for a culture period during 2009 to 2010. Two ponds were treated with probiotics having Nitrosomonas (1.62 kg/ha) and Nitrobacter (0.82 kg/ha) species and one pond was kept as control. During the culture period (August 2009 to July 2010), water quality parameters and the populations of total heterotrophic bacteria (THB), beneficial bacteria (Nitrosomonas and Nitrobacter species) and pathogenic bacteria (Pseudomonas) in water were analyzed. It was observed that in treated ponds, THB and beneficial bacterial load increased and pathogenic Pseudomonas load decreased. The bacterial population changed during every fortnight sampling of the culture period. The changing patterns of different bacteria in treated and control ponds were compared and discussed. The concentrations of ammonia, nitrite and phosphates were observed to be low in treated ponds than in the control pond. The present study revealed that the probiotics are instrumental in maintaining good water quality, higher beneficial and lower pathogenic bacterial loads in fish ponds.

Author(s) Details

Dr. P. Padmavathi
Department of Zoology and Aquaculture, Acharya Nagarjuna University, Nagarjunanagar – 522 510, A.P., India

K. Sunitha
Department of Zoology and Aquaculture, Acharya Nagarjuna University, Nagarjunanagar – 522 510, A.P., India

Comments

Popular posts from this blog

Empowerment and Leader Member Exchange towards Organizational Citizenship Behavior Readiness among Government Workforce in Malaysia | Book Publisher International

  State agencies are among the most significant entities that represent the public's needs, and their programmes are essential to a state's and the nation's economic growth and development. State agencies have been rife by public concerns for years, as demonstrated by the Public Complaints Bureau, as problems of inefficiency in service quality and delivery have yet to meet the public's standards. With the support of 15 employees from state agencies on Malaysia's east coast, this study aims to achieve three targets. The first and second objectives are to investigate the ties between leader-member exchange (LMX) and OCB empowerment. The final aim is to define the most significant factors that affect OCB willingness. A total of 288 people took part in the survey, which was conducted using a cluster sampling process. The survey items had achieved the necessary reliability, according to the pilot test results, and some sub-dimensions were renamed after factor analysis.

Re-asserting Cultural Perspectives: Old People and New Ideas in Bole Butake’s Lake God and The Survivors and Sankie Maimo’s Succession in Sarkov | Chapter 10 | Perspectives of Arts and Social Studies Vol. 2

African cultures have undergone transformations from the colonial period to the present, often to the detriment of its cultural evolution and within the larger global community. As it were, colonial education subordinated African communalism and created in its place an anti-African spirit evident in the assimilation of western values. This did not only end up in a kind of cultural betrayal, but also posed as a serious threat to the dignity and identity of the people. Those who fall prey to this kind of cultural imperialism are the young people who are often irrationally carried away by western fashion and modes that they tend to neglect and/or forget their cultural ways of life as they join the race of “progress.” This situation has given rise to a conscious effort by creative writers to re-assert and protect African values while at the same time liberating themselves from the longstanding western effort at suppressing, controlling and dominating their thoughts particularly through n

The Utilization of Agro-Waste: A Nanobiotechnology Point of View | Chapter 10 | Recent Advances in Biological Research Vol. 5

Aims: To review the utilization of agro-waste in the eco-friendly synthesis of nanoparticles and their biomedical, catalytic and industrial applications. Study Design: A review. Place and Duration of Study: This review was carried out in the interim of three weeks exploiting all relevant data, literature and publications where necessary. Methodology: Profound gathering of literatures/publications and reviews were employed with all carefulness and professional courtesy; enough useful information were gathered over time. The introduction emphasizes the dawn of science and technology, when great ideas were still latent later leading to the advent of history changing innovations like the completion of human genome and then the birth of nanotechnology. Although, nanotechnology had been known decades been popularized by Richard Feynman in his talks in the year 1959; and in this present dispensation, nanotechnology has been a solution to many intricate challenges/ t