Factors modifying egg production with special reference to seasonal changes

1933 ◽  
Vol 23 (3) ◽  
pp. 383-418 ◽  
Author(s):  
Elizabeth O. Whetham
Keyword(s):  
Special Reference ◽  
Seasonal Changes ◽  
Egg Production ◽  
Natural Variation ◽  
Anterior Lobe ◽  
Light Period ◽  
The World ◽  
The Hours ◽  
Effect Of Light

Summary1. Sexual periodicity in many animals is largely conditioned by variations in the daily light period. That egg production in hens may be controlled by the use of artificial lights has long been known.2. The action of light is probably connected with the activity of the anterior lobe of the pituitary.3. The natural variation in daily light period at different latitudes has been used to study the effect of light on egg production throughout the world. Curves have been constructed of egg production grouped in 5° of latitude and the correlation with the hours of daylight at those latitudes studied.

scholarly journals Computer-Simulated Growth Prediction of Replacement Pullets with Special Reference to Seasonal Changes in Feed Intake

1989 ◽  
Vol 68 (6) ◽  
pp. 771-780 ◽  
Author(s):  
T. MURAMATSU ◽  
S. ISARIYODOM ◽  
I. UMEDA ◽  
J. OKUMURA
Keyword(s):  
Special Reference ◽  
Feed Intake ◽  
Seasonal Changes ◽  
Growth Prediction ◽  
Simulated Growth

The role of quality seed use for world crop production with special reference to the developing countries

1975 ◽  
Vol 8 (5) ◽  
pp. 268-270 ◽  
Author(s):  
W P Feistritzer
Keyword(s):  
Developing Countries ◽  
Special Reference ◽  
Crop Production ◽  
Stages Of Development ◽  
Short Article ◽  
Geographical Regions ◽  
The World ◽  
The Future ◽  
Pasture Plants

In this short article the author indicates the present stages of development of variety evaluation, testing, certification, production and marketing of quality seed—of cereals, industrial crops, pasture plants and vegetables—in major geographical regions of the world and draws attention to some of the underlying problems which must be faced in the future if further progress is to be made.

scholarly journals A Study of "Spread?F" Ionospheric Echoes at Night at Brisbane. III. Frequency Spreading

1957 ◽  
Vol 10 (1) ◽  
pp. 60 ◽  
Author(s):  
DG Singleton
Keyword(s):  
Fine Structure ◽  
World Wide ◽  
Recent Literature ◽  
Temporal Analysis ◽  
Seasonal Distribution ◽  
The World ◽  
Diurnal Distribution ◽  
The Hours ◽  
Spread F ◽  
Pronounced Peak

Virtual range versus frequency (P'f) records of the ionosphere made at Brisbane (lat. 27�5 �S., long. 152�9 �E.) during 1952 and 1953 have been examined. It is found that occasionally neither the o nor the x mode of propagation penetrates the F2 layer at a unique frequency, the upward sweeping traces either being blurred out over a range of penetration frequencies (diffuseness) or possessing a fine structure (penetration-frequency multiplicity). Temporal analysis of the occurrence of these. effects reveals that they occur only at night; penetration-frequency multiplicity appearing more frequently in the hours before dawn, while the diurnal distribution of diffuseness has a maximum between 0100 and 0500 hr in summer and represents a more even distribution between 2100 and 0500 hr in winter. The seasonal distribution has a pronounced peak in the winter months and minima in the equinoctial months. These data are compared with the world-wide picture of these variations as it has emerged from the recent literature.

Article Review

1970 ◽  
Vol 23 (3) ◽  
pp. 338-348
Author(s):  
N. H. G. Robinson
Keyword(s):  
United States ◽  
Special Reference ◽  
Theological Education ◽  
The United States ◽  
Religious Thought ◽  
The World ◽  
Theological School ◽  
In Christ

The purpose of this paper is to take account of the contribution to religious thought of Professor Nels F. S. Ferré with special reference to two fairly recent books, Reason in Religion and The Living God of Nowhere and Nothing. For more than a quarter of a century Dr Ferré has occupied a prominent place in the field of theological education in the United States, first at Andover Newton Theological School and for the last few years at Parsons College; and by articles and books he has proved himself a most prolific writer. By and large, moreover, he has persistently evinced an evangelical concern to be faithful to the fulness of the Christian Gospel, so that if by chance, at this point or that, he is deemed to have fallen short, that has certainly happened, not by intention, but in spite of it, by the logical development of his presuppositions. In a much earlier book he offered his readers a choice, ‘either a staggering faith beyond our wildest imagination, centred in God, or else the darkness of description, explaining nothing’ and there is no doubt which alternative he himself preferred. ‘Feeding back modern man his own thoughts and feelings will not nourish him. He must be helped to see and to accept the truth that saves.’ ‘Unless “God was in Christ reconciling the world unto himself” in a historically factual way, without all cavil or equivocation, I know no Gospel for mankind.’

scholarly journals The effect of light factor on the development of thallus and generative organs in Chara vulgaris L.

2014 ◽  
Vol 49 (4) ◽  
pp. 397-407 ◽  
Author(s):  
Janusz Maszewski
Keyword(s):  
Mitotic Activity ◽  
Axenic Culture ◽  
Light Period ◽  
Continuous Illumination ◽  
Chara Vulgaris ◽  
The Moment ◽  
Almost All ◽  
Effect Of Light ◽  
Generative Organs

During long-term axenic culture of Chara continuous illumination (L=24) increases mitotic activity of almost all types of cells. In such conditions only initiation of oogonia is inhibited, leading into a strong predomination of male generative organs. Prolonged darkness (L:D=1:23) exerts a mitodepressing effect. Oogonia and antheridia are especially susceptible to the reduction of the light period. Modifications of the elongating growth in various photoperiods are different in the polyploid regions of the vegetative thallus and in haploid cells of the antheridial filaments. Segments of both axial internodes and lateral pleuridia increase their dimensions at L:D=1:23, whereas at L=24 their growth is significantly inhibited. Different reaction is noted in the cells of antheridial filaments: at L=24 they are about 10% longer than in the control (L:D=14:10). The duration of the antheridium aevelopment, from the stage of unicellular filaments to the moment of antheridium opening, is 1.5 days shorter at L=24 as compared with the control. This shortening includes proportionally both the period of divisions within antheridial filaments and the period of spermatozoid differentiation.

scholarly journals A STUDY ON GREENISH PATTERN OF INDIAN CONSUMERS WITH SPECIAL REFERENCE TO THEIR PLASTIC BAG USAGE BEHAVIOR

2021 ◽  
Vol 22 (2) ◽  
pp. 444-452
Author(s):  
G. Madan Mohan ◽  
M. Prabhu ◽  
Nabaz Nawzad Abdullah
Keyword(s):  
Special Reference ◽  
Goods And Services ◽  
Descriptive Research ◽  
The World ◽  
Indian Consumers ◽  
Usage Behavior ◽  
Premium Price ◽  
Plastic Bag ◽  
Excessive Consumption ◽  
Biophysical Environment

The Population explosion has led to excessive consumption and exploitation of natural resources resulting in degradation of the biophysical environment. Many agitations have gained momentum in various parts of the world to protect it from environmental degradation. Many governments have banned the usage of plastics in their endeavor to protect the environment. This descriptive research has attempted to study the greenish pattern of 320 Indian consumers with special reference to their plastic bag usage behavior while carrying their purchases back home. The Results of the study have revealed that customers accord importance to the environmental impact of goods and services before purchasing such goods and they prefer to visit shops that are eco-friendly while they do not attach much importance to the environmental reputation of companies dealing with such goods and services. They prefer green products due to their good quality and reliability and are willing to pay a premium price for such products.

scholarly journals BEFORE LATE: LET’S ACCOMPLISH THE GREAT- AN ARGUMENT TO SAVE ENVIRONMENT WITH SPECIAL REFERENCE TO CONDITION OF NEPAL

2016 ◽  
Vol 4 (4) ◽  
pp. 13-19
Author(s):  
Atindra
Keyword(s):  
Special Reference ◽  
Human Health ◽  
Environmental Degradation ◽  
Future Generation ◽  
The World

Development and civilization have been top-rated priorities and indication of human success in the world; and the largest segment of world talent are immersing to mark new and ever un-experimented record in this course. But paying more attention towards money centric gain and material prosperity centric civilization, an irrational attack on environment is rife everywhere. In last few decades, the environmental strength of world has been largely damaged and it has offered severe impacts on human health now. Though, people were more over-swayed with anthropomorphic use of environment and some transitory progress gained, slowly the imbalance of environment and its reverse effects on human lives have started taking limelight of people. And now, environment seems to be equally pressing and compelling agendas of human checklist to do. If not initiated anything great, it may be more than late to save us and future generation. Thus, the article tries to disclose the impacts of environmental degradation and urges to have efficient actions to alleviate the situation with acknowledging and accessing few of initiatives taken, here so forth.

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