PG Thesis

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    Keeping quality of shell eggs during summer
    (Department of Poultry Science, College of Veterinary Science,Mannuthy, 1981) Radhakrishnan Nair, R; Venugopalan, C K
    A study was conducted to asses the keeping quality of shell eggs during summer months of March, April and May. Quality deterioration on 3rd, 5th, 7th, 10th and 15th days of storage of eggs held at room temperature was measured. Simulteniuosly lime treated eggs at room temperature and eggs held in cooler at 10 to 130 C were also evaluated similarly. A total of 432 tables eggs were used for the study, 144 eggs under each treatment. The traits measured for quality assessment were weight loss, albumen index, yolk index, haugh unit score, per cent thick albumen and albumen pH. Following observations were made from the study: 1. The average temperature and humidity during the three months of study did not vary greatly and were 310 C and 61.3 per cent relative humidity respectively. 2. Irrespective of the mode of storage deterioration in quality with respect to all the traits increased with the increase in the period of storage. 3. Based on Haugh unit score it was observed that eggs stored at room temperature without any treatment maintained reasonable quality only upto 10 days while those stored under both the treatments were reasonably good even on the 15th day of storage. 4. At all stages of storage upto 15 days eggs held at room temperature without any treatment were decidedly inferior to those stored in cooler or after lime treatment with regard to all quality factors. 5. Both lime treatment and holding in cooler were found equally effective in maintaining egg quality upto 15 days of storage. The following conclusions are drawn based on the results of the study. I. It is not advisable to keep shell eggs at room temperature in summer for more than ten days before consumption. II. Eggs can be stored safely for 15 days without loosing market quality greatly if preserved after lime treatment or in cooler at 10 to 130 C. III. Even though both the methods of preservation employed in the study was found to be more or less equally effective, lime sealing appeared a simple economic and suitable technique of preservation for small scale producers.
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    Influence of weather parameters on yield of coconut
    (Department of Statistics, College of Veterinary & Animal Sciences, Mannuthy, 1985) Pankajakshan Nair, B; Gopinathan Unnithan, V K
    Influence of eighteen climatic factors for a period ranging from 10-45 months before harvest of coconut, were studied on monthly and annual coconut yield. Monthly climatic factors showed a seasonal relationship with monthly yield changing sign alternatively. Month-wise and season-wise climate and their influence on monthly and annual yield was also studied. The influence of climatic factors were more in evidence during pre and post monsoon seasons. RH, SSH and EV are frequently showed significant relationship with monthly yield than the rest. Seasonal grouping of climate showed stronger relationship on annual yield than month-wise climate. May, September, October and December months of yester years showed explicit association with annual yield.
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    Forecasting of rice yield using climatological variables
    (Department of Statistics, College of Veterinary and Animal Sciences, Mannuthy, 1986) Ajitha, T K; Prabhakaran, P V
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    Effect of graded doses of nirogen and potash on growth, root yield and alkaloid content of Periwinkle (Catharanthus roseus (L.) G. Don)
    (Department of Horticulture, College of Agriculture, Vellayani, 1981) Regunath, B R; Sethumadhavan, P
    An experiment was conducted at the College of Agriculture, Vellayani during the year1979-80 to study the effect of four levels of nitrogen (50, 100,150 and 200 kg per hectre) and three levels of potash (50, 100 and 150 kg per hectare) in RCBD on the growth, yield and alkaloid content of Periwinkle (Catheranthus roseus (L.) G. Don). Application of N, particularly at higher levels, had significant influence on plant height, girth of stem and tap root, fresh and dry yield of leaves, shoot, root and total alkaloid yield per hectare. Increased application of N increased the percentage of alkaloid content in root and at lower levels it increased the length of tap root, girth and number of lateral roots.
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    Climate change adaptation on rice production
    (Academy of Climate Change Education and Research Vellanikkara, 2016) Navya, M; Sunil, K M