UPV Theses and Dissertations
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Item The effects of compost produced from rice Oryza sativa straw and sugarcane Saccharum officinarum trash on the growth of pechay Brassica rapaBrizuela, Karlyn G. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2014-03)This study was designed to determine the effects of the application of compost produced from rice Oryza saliva straw and sugarcane Saccharum officinarum trash on the growth of pechay Brassica rapa. Experiments were carried out in a residential lot in Brgy. Punta Taytay, Bacolod City, Negros Occidental. Four set-ups were made with three replicates each. Each set-up corresponded to one compost treatment: treatment (A) was the rice straw compost, treatment (B) was the sugarcane trash compost, treatment (C) was the combination of rice straw and sugarcane trash compost, and treatment (D) served as the control in which no compost was added. The results of the statistical tests showed that there was a significant increase in the growth of pechay plants treated with the three different types of composts as compared to the pechay plants treated with the control. Among all the treatments, pechay plants treated with the combination of rice straw and sugarcane trash compost showed the highest growth yield in terms of the mean plant height (19.61 cm), mean fresh weight (44.95 g), and mean number of leaves per plant (8.99) at the time of harvest. Results also that showed that there was no significant difference in the mean fresh weight and mean number of leaves per plant at the time of harvest in pechay plants treated with the rice straw compost and the sugarcane trash compost.Item Rhizosphere fungal diversity of Bruguiera gymnorrhiza in Mag-aba, Pandan, AntiqueBolivia, Marielle Angeli D. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2019-06)Fungi are popularly known to be both ecologically and economically important but knowledge about its diversity particularly fungi located in the rhizosphere of mangroves is poorly known. Fungal population in rhizosphere are closely linked to plant health and growth, function as decomposers of plant residues, antagonize pathogens, and provider of nutrients. However, few studies have been done on this group in the mangroves. The study aimed to assess the rhizosphere fungal diversity of Bruguiera gymnorrhiza in Mag-aba. Pandan, Antique. Specifically, it aimed to (1) isolate, characterize, identify and classify the fungi collected. (2) determine the overall species composition and (3) quantify fungal load in terms of colony forming units (CFU/g). A total of 16 morphological species were identified belonging to four genera namely Aspergillus, Penicillium, Acremonium, Neosartorya and five unknown species of Hyphomycetes. The frequently occurring species in this study were similar to the findings from previous studies such as Aspergillus and Penicillium species. Fungal load (CFU/g) was quantified using two types of media, Com meal agar and Potato dextrose agar. Both culture media obtained a high fungal load quantify (5.0xl04) which is near the typical fungal load of a healthy fertile soil. Shannon-Weiner, Shannon's equitability and Simpson diversity were 2.20, 0.92 and 0.90, respectively. The results suggest that there is a low diversity consistent with previous reports. Thus, more studies should be conducted in other mangrove areas to have a more comprehensive assessment of the diversity and status of rhizosphere fungi in mangrove ecosystems.Item Diversity and population structure of sea cucumber species in Taklong Island Marine Reserve, GuimarasBearnod, Christine F. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2014-04)The increasing demand of sea cucumbers in the market leads to the global exploitation of this animal. Marine reserve protects the marine biodiversity and teaches the people in the communities to manage their marine resources wisely. This study examined the diversity, species characteristics and population structure of sea cucumbers in five sites around Taklong Island Marine Reserve namely, Binabaywan, Kalirohan, south side of 2nd sandbar, north side of 2nd sandbar and Tarakpan. The species composition and abundance were determined through transect walks and plot along transects. Sea cucumber density was estimated by randomly positioned 1 square meter plots in each site. There were 11 sea cucumber species found. There were 9 species under Order Aspidochirota all in 1 Family Holothuriidae and 2 species in Order Apodida in 1 Family Synaptidae. A total of 64 individuals were sampled in 5 sites. The most widespread and the dominant species was the non-commercially valuable Synapta maculata (n = 32) followed by the low-value Holothuria pulla (n = 9) and Holothuria atra (n = 8). Kalirohan had the most number of species (Σs = 6) and individuals of sea cucumbers. The low number of holothurian species encountered in the Marine Reserve might be due to the limited sites surveyed, cryptic behaviour of the species and the possibility of poaching in the area.Item Analysis of the gut contents of largehead hairtail, Trichiurus lepturus (Linnaeus, 1758) in Surigao Del SurBarros, Andrea Philine R. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2019-06)The traditional gut content analysis is one of the methods used which investigates feeding interactions, specifically those belonging to the aquatic food webs. The ribbonfish, Trichiurus lepturus is an economically important fish, and due to its high demand to other south-east Asian countries especially in the Philippines, there is a targeted fishery for this resource. However, the catch of this species in the country has declined recently. Since feeding habits are fundamental to understanding the ecology of a community, this study aimed to analyze the gut contents of Trichiurus lepturus. A total of 66 guts were examined in the study. The size ranged from 101-505 mm in total length. They fed mostly on fishes including Encrasicholina sp., and shrimps such as Acetes, Penaeus, and Lucifer. Moreover, there was an occurrence of cannibalism but only larger individuals. Microplastics were also evident in most of the size classes.Item Prevalence and risk factors for hypertension and obesity among public utility jeepney and tricycle drivers in Janiauy, IloiloBacallan, Jed Vincent; Caro, Miguel Angelo; Delos Reyes, Fate; Divinigracia, Bert Lorenz; Ehimplar, Annie Rose; Lavente, Hannah Gail; Mallorca, Tracy Roz; Tabañar, Jessa Andrea; Tubeo, Nikki Francheska; Villanueva, Ma. Sharee Lou (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2014-04)A cross sectional study was conducted in Janiuay, Iloilo, involving tricycle drivers and jeepney drivers. The objective of this study was to determine and compare the prevalence and risk factors for hypertension and obesity between public utility jeepney and tricycle drivers in Janiuay, Iloilo. A total of 165 respondents, jeepney (87) and tricycle (78), were measured with an aneroid sphygmomanometer and tape measure to determine the blood pressure and waist-hip ratio. An interview was also conducted to determine occupational factors and lifestyle habits. Results were analyzed through SPSS using Chi-square test, T-test and Odds ratio. The prevalence of hypertension was found to be greater in jeepney drivers (36.80%) compared to tricycle drivers (34.60%). The prevalence of obesity was found to be greater in tricycle drivers (46%) compared to jeepney drivers (45%). There is a significant difference in the occupational risk factors between jeepney drivers and tricycle drivers, years of driving, average trip time, kilometers travelled per day and number of trips per day (p<0.0005). However, working days per week (p<0.08) and working hours per day (p<0.30) showed no significant difference between two populations. The results of the odds ratio showed no significant effect in all lifestyle factors to hypertension and obesity. There is no significant difference in the prevalence of hypertension, obesity, and lifestyle risk factors between jeepney drivers and tricycle drivers. However there is a significant difference in the occupational risk factors between the two driver populations.Item Temporal variation in the subtidal macroinfaunal composition of a NaGISA seagrass bed in southern Guimaras, Philippines between 2015 and 2016Bacabac, Earl Jeroh I. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2019-06)Seagrass meadows are amongst the most abundant and diverse ecosystems when it comes to biodiversity but due to stress induced by natural and anthropogenic factors, a worldwide decline threatens the vital ecological functions of these habitats. Studying the infauna provides clues and information about the complexity of seagrass ecosystems and provides information that would facilitate better seagrass area management and associated conservation efforts. The NaGISA sampling protocol was conducted in Calaparan seagrass bed in TINMAR, Guimaras, Philippines between Sept. 2015 and 2016. Overall macrofaunal density was recorded at 21,954.80 ± 36,109.62 ind.m'2 with macrofaunal density higher in 2015 than in 2016 albeit, insignificant except for capitellid polychaetes. Community structure analysis also found similarity in dominance patterns in the subtidal zone with other soft-bottom macrofaunal studies in the Philippines with polychaetes, nematodes, and crustaceans as the respective dominant macrofaunal groups observed. Dominant polychaete families were also found to be cosmopolitan and opportunistic. Granulometric analysis characterized the sediment as pebble to medium sand with mid phi values ranging from -3.69 to 1.10 but poor sorting in all sampling points was observed. Cymodoceaceans dominated the subtidal zone in both years (Halodule pinnifolia in 2015; Cymodocea rotundata in 2016). Correlation analysis showed macrofaunal densities to have a significantly strong negative relationship with sorting index and percent gravel while a strong positive relationship with percent seagrass cover. The poor sediment sorting, coarse sediment character, and seagrass cover were the primary factors influencing the observed decrease in macrofaunal density but the decrease is considered normal for the variability of macrofauna in the area. A clearer picture of macrofaunal interactions would be provided with comparison to intertidal macrofauna of the area in the sampling years and data on additional factors that were not measured in the study.Item Sagip COUGHamilya: Improving prevention, and case management & care seeking in Sitio Durog, Barangay Palaca, MiagaoAsorio, Leslie S.; Clarito, Thea Joy A.; Dolorosa, Rex Victor V.; Marecap, Mitzi N.; Napulan, Andrea Marie N.; Recabar, James Mathew V.; Rodriguez, Sael D.; Velasco, Princess Monic Q. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2019-06)According to the 2018 Morbidity Diseases Reports of Miag-ao’s Rural Health Unit (RHU), Acute Respiratory Infection (ARI) is the main cause of morbidity among the children in the municipality. Upon further review, the community that was found to have the greatest number of ARI cases is that of Barangay Palaca. To contribute with the reduction of ARI cases in the said community, Project Sagip COUGHamilya was implemented in Sitio Durog. This project aims to reduce the number of current ARI cases among children aging 2 months to 11 years old by at least 50% after the 6-week project implementation. In order to accomplish such goal, the team utilized strategic components such as: (1) establishment of a core group called FamiLEADERS, (2) honing the ARI case management knowledge and skills of the barangay health workers (BHWs) through FamiLINANG sessions for BHWs, (3) improving the mothers’ & guardians’ knowledge, attitude, and practices (KAP) towards care seeking and case management for ARI through FamiLINANG sessions for mothers, and (4) raising the children’s awareness on cough etiquette, proper handwashing, and other key health practices through LINIStorya sessions. Upon implementation, the project’s outputs include the 80% increase in the ARI case management knowledge and skills of BHWs, 44.47% increase in the KAP of the mothers & guardians towards care seeking and case management for ARI, and 12.5% increase in the children’s awareness towards cough etiquette, proper handwashing, and other key health practices. All these results were statistically found to be significant improvements. In conclusion, the strategies done by the group significantly improved the care seeking, case management, and key health practices for ARI in Sitio Durog, Barangay Palaca. As a result, Projesct Sagip COUGHamilya contributed to the reduction of ARI cases by 80%, far exceeding the goal of the project and deeming it to be very effective and successful.Item Spatio-temporal analysis of animal rabies cases in Negros Occidental from 2012-2018Asorio, Leslie S.; Clarito, Thea Joy A.; Dolorosa, Rex Victor V.; Meracap, Mitzi N.; Napulan, Andrea Marie N.; Recabar, James Matthew V.; Rodriguez, Sael D.; Velasco, Princess Monic Q. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2019-06)Rabies is particularly dangerous and deadly disease that infects domestic and wild animals and is transmissible to humans. The province of Negros Occidental has been experiencing an uneasy situation on both human and animal rabies in recent years. It posted a rising trend on the number of human deaths due to rabies infection from 2012 to 2018, and has ranked number one among the provinces in Western Visayas with the highest number of positive animal rabies cases in 2017 to 2018. Animal rabies, particularly of canine and feline type, is considered to be a serious threat to public health thus all prevention and control efforts in order to reduce the cases of human rabies are stemming from the identification of high-risk barangays based on the occurrence of canine or feline rabies cases. In this research, a spatio-temporal analysis was performed to determine the high-risk municipalities and temporal pattern of animal rabies cases in Negros Occidental from 2012 to 2018. Spatial analysis identified the major cities such as Bacolod City and Bago City and their surrounding municipalities to be of high risk to animal rabies. The epicenter of cases is slowly shifting towards the central part of the province in subsequent years. Twenty-six (26) space-time clusters of animal rabies cases in Negros Occidental were found to have “intensifying”, “consecutive”, “oscillating”, and “sporadic” time trends. Two clusters classified as “new” hotspots were identified in the central part of the province.Item Survey of pathogenic bacteria in bottom sediments of Iloilo River: An assessment of water sanitary qualityAraneta, Karla Teresa S.; Bugayong, Adrienne Marrie S.; Cabanilla, Jennifer C.; Caro, Mary Ann Gina C.; Gayatgay, Christian Era U.; Nufuar, Ernest Jan T.; Rufino Krystal Hope S. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2009-03)This study assessed the water sanitary quality of the Iloilo River by determining the monthly heterotophic plate count (HPC), total coliform (TC), fecal coliform (FC), and fecal streptococcus (FS) counts of the bottom sediments in five sampling sites from October 2008 to February 2009. These parameters were then correlated with the physico-chemical parameters that were additionally obtained from the river water. The presence of Salmonella spp, E. coli. Vibrio spp, and fecal Streptococcus were also determined as indicators of the pathogenic bacteria in the bottom sediments of the Iloilo River. Using the FC:FS ratio, the study further distinguished fecal contamination sources from each site as human, animal, or mixed in origin. An assessment of sediment quality was done using DENR standards for TC and Kohl and Albinger's sediment quality criteria for HPC and FC. Sediment samples were taken from the following sampling sites along the Iloilo River: 1) Forbes. 2) Dungon, 3) IBRD, 4) Carpenter's, and 5) So-oc. No significant difference in any of the physico-chemical or microbiological parameters were found among sampling stations. However, analysis and comparison of the microbiological parameters of bottom sediments in terms of months showed significant temporal variability HPC, TC, and FC alternately decrease and increase every month while FS showed a generally increasing trend. The following correlations between the microbiological and physico-chemical parameters were found. 1) temperature with HPC and FS , 2) salinity with FS count, and 3) dissolved oxygen concentration with TC and FC Counts. The mean percentage of bottom sediment samples with Salmonella ranged from 3% to 10% while more than half of samples from all sampling sites showed the presence of Vibrio spp. and S. faecalis. Samples with E.coli from all sites ranged from 3 to 14%. Fecal contamination sources varied across sampling sites. So-oc show ed mostly animal sources as its orgin of fecal contamination, while other sites had either animal, human or mixed sources. S. faecalis and E. coli exhibited multiple antibiotic resistance, a grow ing health concent in many of today's rivers. All isolates were susceptible to Gentamicin and Ciprofloxacin but resistant to Penicillin. Based on HPC and FC values the degree of loading with easily decomposable organic substance and feces among the sampling sites ranges from very little to little. TC count of the sediment samples from all the sites does not exceed the limit of 5000 CFU/ 100ml set by the DENR. Results suggest that sediments were not a significant reservoir of bacterial pollution at the time this study was conducted.Item Knowledge, attitudes, and practices on dengue vectors of households in Tumagboc Catchment Area, Miagao, IloiloArbizo, Jeric L.; Baldevarona, Rosa Lea S.; Caoyonan, Louise Asuncion D.; Gabasa, Marah Febcy J.; Mapa, Fernie Love D.; Patria, Elaine Joy M.; Tenchavez, Darlene Ruth B.; Trivilegio, Enna Fleur C. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2011-03)Previous studies have shown that knowledge, attitudes and practices have an association with the dengue vector control. As such, the independence of mosquito population on the sociodemographic characteristics and KAP of the household heads in Tumagboc Catchment Area, Miagao, Iloilo was tested. Based on the results, the household heads generally are unemployed, married females aging 41 to 50. Their households are composed of 4 to 7 members with no or one child below 15 years, and usually receive below P 1999 per month. Most of them are informed about dengue fever, but only one had suffered from it in the last two years. Moreover, they have moderate knowledge, poor attitudes, but good practices regarding dengue prevention. The container index is 2.71 for crude mosquito larvae and pupae population, and 0.39 for Aedes sp. The house index is 9.72, while the Breteaux indexis 13.19. Chi-square analysis at 0.05 level of significance confirmed the independence of mosquito larvae and pupae population from monthly income, dengue information reception, knowledge, attitudes and practices. A solid reason was the untimely conduct of the study in the beginning of the summer season, when stagnant water has dried up and with few vulnerable breeding sites.