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Database of Abstracts of Theses and Dissertations of SEAMEO SEARCA Scholars
Showing 391–400 of 1,491 records
"Geographic variation and host utilization pattern of Bactrocera philippinensis Drew and Hancock and B. occipitalis (Bezzi) (Diptera: Tephritidae) in selected areas of the Philippines"
Laboratory studies were carried out to (1) evaluate taxonomic characters that can improve the differentiation between the two fruit fly species, (2) determine host plant preference of the two species, and (3) evaluate the suitability of the different... Read more.PhD in Entomology (University of the Philippines Los Baños)"Growth and carcass production of Ongole grade cattle and Simmental Ongole crossbred cattle growing in a feedlot system"
The purpose of this research was to determine the growth and carcass production of Ongole grade cattle (PO) and Simmental Ongole (SimPO) crossbred cattle growing in a feedlot system. Six Ongole grade cattle and six Simmental Ongole crossbred cattle... Read more.MS in Livestock Science (Gadjah Mada University)"Human forest interaction in Aborlan Guba System, Palawan Island, Philippines and implications for conservation and management"
The dynamics of human-forest interaction in Aborlan Guba System, Aborlan, Palawan was determined by doing social and literature surveys and by using the STELLA program for model development. Of the 324 vascular plant species in 192 genera... Read more.PhD in Environmental Science (University of the Philippines Los Baños)"Influence of pesticide and cadmium in feed on reproductive and physiologic responses of female Philippine mallard (Anas platyrhynchos L.) from 16 to 47 weeks of age"
This study assessed the effects of endocrine disruptors administered in feed on reproductive and physiologic performance of female Philippines mallard after sexual maturity. Laying ducks at 33–47 weeks of age (n = 140) were randomly allotted... Read more.PhD in Animal Science (University of the Philippines Los Baños)"Integration of agricultural extension competencies in the basic agricultural courses in selected institutions in East Timor"
This study was undertaken to determine the extent of integration of agricultural extension competencies (AEC) in the basic agricultural courses in selected institutions in East Timor. Specifically, it focused on the BSA and Diploma programs offered... Read more.MS in Agricultural Education (University of the Philippines Los Baños)"Isolation and identification of lactic acid bacteria from fermenting bignay [Antidesma bunius(L.) Spreng] and mango (Mangifera indica L.) wines"
The study was conducted to identify the lactic acid bacteria (LAB) present in fermenting bignay and mango wines. Microbial count (total and acid-producing bacteria) of the samples was determined at weekly intervals (0, 7, 14, 21, and 28 days) using... Read more.MS in Food Science (University of the Philippines Los Baños)"Land use change and its impacts on watershed function and food security in Huaynamphung Subwatershed, Thailand"
The study was conducted in the 66,073.59 ha Huaynamphung Subwatershed in Thailand covering four districts having different topographies (i.e., mountainous on the western side and relatively flat on the eastern side. The study assessed the land use... Read more.PhD in Environmental Science (University of the Philippines Los Baños)"Leaf and fruit nitrogen, potassium, and calcium concentrations in relation to fruit yield, quality, and severity of anthracnose in mango (Mangifera indica L.)"
The effect of pre-harvest nitrogen fertilization on the post-harvest disease, yield, and fruit quality was determined on 10–15-year-old ‘Carabao’ mango trees. The treatments included four levels of nitrogen (0, 100, 200, and 300 g... Read more.MS in Horticulture (University of the Philippines Los Baños)"Mechanism of histamine formation and control in fermented viscera ‘dayok’ from yellowfin tuna [Thunnus albacares (Bonnaterre)]."
Dayok is a fermented fish product prepared from tuna viscera. This study aimed to determine the formation and control of histamine in fermented tuna viscera as influenced by different salt concentrations (10, 17.5, and 25%), fermentation ... Read more.PhD in Food Science (University of the Philippines Los Baños)"Natural and artificial regenerations in the rock dump site of abandoned mining area in Larap, Jose Panganiban, Camarines Norte, Philippines."
Regeneration of mined-out area is not far-fetched but possible although poses herculean challenges in terms of resources, both technical and financial. This study assessed/evaluated the natural and artificial regenerations in the rock dump site of... Read more.PhD in Environmental Science (University of the Philippines Los Baños)