scholarly journals The influence of drinking water containing sodium chloride on performance and eggshell quality of a modern, colored layer strain

2001 ◽  
Vol 80 (1) ◽  
pp. 91-94 ◽  
Author(s):  
J. Chen ◽  
D. Balnave
1992 ◽  
Vol 1 (2) ◽  
pp. 194-199 ◽  
Author(s):  
Ken W. Koelkebeck ◽  
Paul C. Harrison ◽  
Carl M. Parsons ◽  
George R. McCain

2020 ◽  
Vol 99 (2) ◽  
pp. 966-973
Author(s):  
Jing Wang ◽  
Hai-jun Zhang ◽  
Shu-geng Wu ◽  
Guang-hai Qi ◽  
Li Xu ◽  
...  

1998 ◽  
Vol 49 (7) ◽  
pp. 1161 ◽  
Author(s):  
D. Balnave ◽  
D. Zhang

Three experiments were carried out to determine the long-term responses in egg shell quality when hens were given saline drinking water for only a few weeks either at the start of lay or in mid-lay. Shell quality of eggs from hens given town water containing an additional 2 g sodium chloride (NaCl)/L as drinking water for periods of 5 or 6 weeks prior to 30 weeks of age or between 48 and 53 weeks of age was significantly poorer at the end of lay than shell quality of eggs from hens given town water throughout lay. Apart from these short periods of saline water supply the NaCl-treated hens received town water throughout lay. Shell defects were increased significantly after 55 weeks of age even when no apparent detrimental effects of saline drinking water on shell quality were observed during the period of saline water intake or when the incidence of shell defects returned to normal after the replacement of saline water with town water. The results indicate that the adverse effects of saline drinking water on egg shell quality is of long-term significance, being especially noticeable towards the end of lay.


2020 ◽  
Vol 27 (1) ◽  
pp. 106-120 ◽  
Author(s):  
L. A. Rodionova ◽  
E. D. Kopnova

The relevance of the chosen topic is closely related to the development of a system for monitoring the implementation of the May Presidential Decree (2018) to increase life expectancy and improve the quality of life of the population. It has been stated that despite the positive dynamics of life expectancy over the past decade, Russia still has a huge regional differentiation (16,6 years for women, 18,2 years for men in 2016) and an average gender gap - 10,6 years. The choice of factors affecting the gender gap in life expectancy in Russian regions is supported by a conclusion most common in foreign studies that climatic conditions, living conditions, the quality of food and drinking water, alcohol consumption are essential components of public health and life expectancy.The article provides an overview of studies on assessment factors of life expectancy, presents the authors’ approach to identifying gender gaps in life expectancy, living conditions, and lifestyle affecting the indicator of life expectancy. The paper presents the results of a comparative analysis of gender gap in life expectancy in Russia and foreign countries. The paper studies the correlation between living conditions and lifestyle, and life expectancy.Classification of the regions by the life expectancy at birth for men and women is an important component of this study. The authors used Rosstat data for 2016 and the k-means method to select three clusters of Russian regions taking into account gender, living conditions and lifestyle. The paper identifies similar health problems of the regions that are associated with alcohol consumption, poor nutrition and poor quality of drinking water, poor housing and living conditions. The lowest life expectancy rates for men and women are recorded in regions of the 1st cluster (Jewish Autonomous Region, Republic of Tuva, Chukotka Autonomous Area). High mortality rates are a result of external causes. There is a poor quality of drinking water and poor nutrition, excessive alcohol consumption, and inadequate housing conditions.Based on the obtained results were determined possible reserves for reducing the gender and regional differentiation of life expectancy.


1995 ◽  
Vol 31 (5-6) ◽  
pp. 75-79 ◽  
Author(s):  
M. Würzer ◽  
A. Wiedenmann ◽  
K. Botzenhart

In Germany the application of procedures such as flocculation and filtration in the preparation of drinking water results in the annual production of an estimated 500,000 t of sediments and sludges. Some of these residues have a potential for being reused, for example in agriculture, forestry, brickworks or waste water treatment. To assess the microbiological quality of residues from waterworks methods for the detection of enterobacteria, Escherichia coli, Salmonella, Pseudomonas aeruginosa, Legionella, poliovirus, Ascaris suis eggs and Cryptosporidium have been evaluated regarding their detection limits and were applied to various residues from German waterworks. Results show that sediments and sludges may contain pathogenic bacteria, viruses and protista. When residues from waterworks are intended to be reused in agriculture or forestry the microbiological quality should therefore be considered.


1994 ◽  
Vol 30 (10) ◽  
pp. 221-227 ◽  
Author(s):  
Jordi Martín-Alonso

The Llobregat is a 156 km long river, which supplies 35% of the Barcelona's drinking water needs from the Sant Joan Despí Water Treatment Plant. Since the establishment of the Salt Mine Works in the Llobregat basin in 1923, a progressive salinization of the water sources has been recorded. The operation of the Brine Collector, as a public work carried out by Aigües de Barcelona (AGBAR), started in 1989; it enabled a very significant improvement in the quality of the surface water used for drinking-water production.


Sign in / Sign up

Export Citation Format

Share Document