Resting egg

Ebook "Mosquito ecology: Field sampling methods" is designed to serve as a practical reference for field entomologists and mosquito control specialists and describes the sampling methods and available trapping technologies and tools for the collection of all life-stages of mosquitoes, from egg to adult. It also describes the techniques available for data analysis and discusses ecological principles of relevance to the study of field populations of mosquitoes.

1486p tachieuhoa 28-01-2024 3 2   Download

The resting egg carrying females appeared and increased their rates in concurrence with increases in the population density. The present results are important information for resting egg induction and production of rotifer in larviculture.

8p chauchaungayxua12 09-07-2021 7 1   Download

The present study was conducted at Krishi Vigyan Kendra, Kota district of Rajasthan. Choma kot village was selected from the identified on the basis of maximum numbers of beneficiaries under NICRA. Ten farmers from each village were selected randomly, ten of them having Pratapdhan poultry (beneficiaries under NICRA) and rest ten having desi poultry (non-beneficiaries) were selected thus making a sample of 10 respondents.

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The wheat varieties HD-2733 and K-307 were found moderately resistant against Sitophilus oryzae in which higher hardness, lower moisture, lesser eggs, progeny and population with longer developmental period and lesser grain weight loss and damaged grain were recorded. Rest wheat varieties found susceptible to Sitophilus oryzae. Hardness having negative association with pest infestation. While moisture showed positive relation. The fecundity and progeny were positive relation with percent weight loss and damaged grain.

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The field experiments were conducted at Nematology field, ICR Farm, AAU., Jorhat during 2016 and 2017 to know the efficacy of bioagent, P. fluorescens and biofertilizer, Azotobacter sp. for that P. fluorescens and Azotobacter sp. were enriched in the substrates like farmyard manure, vermicompost and enriched compost. After enrichment of P. fluorescens and Azotobacter sp. were applied singly and in combination at the rate of 1% per hectare (ha). These treatments were compared with untreated control. It was recorded that the combined application of P. fluorescens and Azotobacter sp.

21p chauchaungayxua3 07-02-2020 24 2   Download

The apparent change in the egg membrane potential at fertilization gives rise to fertilization potential (FP). FP is the initial, transient electrical block to polyspermy as shown in most species especially those exhibiting external fertilization, and it protects the egg from a second sperm entry until the permanent, mechanical block is set up.

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A heterogeneous good, spatial partial-equilibrium model with perfect competition affected by non-technical and sanitary trade barriers is used to represent the global poultry sector. There are eight regions in the model: United States (US), Brazil, the EU, Japan, China, Russia, a rest-of-world poultry exporting region (ROWE), and a rest-of- world poultry importing region (ROWM).

77p loginnhanh 22-04-2013 51 1   Download

Pre-heat oven to 350 degrees. Grease a 13 x 9 x 2 cake pan. In a mixer, combine 1 cup butter and brown sugar. Add eggs and 1 tsp. vanilla and mix. Mix in flour, 1 tsp. salt and baking soda. Add the Quaker oats and mix well--if it gets too stiff for mixer, continue by hand with a wooden spoon. Press 2/3 of the batter into the greased cake pan--save the rest for later. Filling: melt the chocolate bits in a saucepan with Eagle milk, 2 TBSP butter, 1 tsp. vanilla and 1/2 tsp. salt--cook over medium heat and...

237p window1234 22-12-2012 67 12   Download

Riêng Asplanchna con đực có thể thu tinh cho con mẹ trước khi nó thoát ra ngoài. Chu trình sinh sản của Trùng bánh xe được diễn giải theo sơ đồ trên. Một dạng kỳ lạ khác của Trùng bánh xe là loại trứng nghĩ nhưng chưa thụ tinh (pseudosexual resting egg) được phát hiện trong quần đàn nuôi mà không có con đực. Loại trứng này cũng sẽ phát triển tương tự như loại trứng nghĩ có thụ tinh. Con đực trong quần xã Trùng bánh xe là một dạng suy thoái, có đời sống ngắn thường chỉ chiếm...

15p myxaodon08 02-06-2011 86 18   Download