Tag Archives: longevity

369–375 L. Cielava,, D. Jonkus and L. Paura
Lifetime milk productivity and quality in farms with different housing and feeding systems
Abstract |
Full text PDF (245 kB)

Lifetime milk productivity and quality in farms with different housing and feeding systems

L. Cielava¹,*, D. Jonkus¹ and L. Paura²

¹ Latvia University of Agriculture, Faculty of Agriculture, Institute of Agrobiotechnologies, Lielā 2, LV-3001 Jelgava, Latvia
² Latvia University of Agriculture, Faculty of Information Technologies, Department of Control systems, Lielā 2, LV-3001 Jelgava, Latvia
*Correspondence: lasma.cielava@llu.lv

Abstract:

Housing and feeding systems in farms are main factors that affects cow milk productivity and its quality. The largest proportion of Latvian farms are small farms with tie stall housing system and grazing in summer. The aim of our study was to determine to what extent different housing and feeding systems affect the milk productivity, quality and cow longevity characterizing traits of Latvian dairy cows. In study we analysed 3,179 Holstein Black and White (HBW) and Latvian Brown (LB) breed cows from which 2,383 were located in 2 farms with loose housing system and TMR feeding and 796 cows were located in 8 small farms with tie stall housing system and different feed in summer and winter periods. The average daily milk yield significantly higher (p < 0.05) were in farms with loose housing system – 23.53 kg ECM, but in farms with Tie stall housing system was obtained 18.46 kg ECM per day. HBW breed cows characterized with lower somatic cell count in milk than Latvian brown in both housing systems. The highest somatic cell count in milk was obtained from third lactation LB breed cows in Tie stall housing system (249.11 thous. in 1mL-1 milk) and the lowest from HBW cows in loose housing system (127.57 thous. in 1mL-1 milk). Cows in smaller farms characterized with longer lifespan – 2,098.7 and 1,890 days for large farms, but lifetime milk productivity was significantly higher in farms with loose housing system where was obtained 21,315.9 kg ECM whereas in Tie stall system farms average life productivity was 19,740.2 kg ECM.

Key words:

, , ,




435-440 Ü. Kristjuhan
Possibilities of prolonging human life in the near future
Abstract |
Full text PDF (180 kB)

Possibilities of prolonging human life in the near future

Ü. Kristjuhan

Chair of Labour Environment and Safety, Tallinn University of Technology,Ehitajate tee 5, EE19086 Tallinn, Estonia; e-mail: ulo.kristjuhan@ttu.ee

Abstract:

People are interested in health and long life. As a result of their activities, health isimproving and average life expectancy is increasing in most countries by two to three monthsevery year. It is around 76 years in Estonia and nearly 80 years in the European Union (onaverage) at present. Life expectancy is projected to increase to 84.6 years for men and to 89.1years for women in Europe by 2060. However, these figures are likely to be overly pessimistic.There are many ways of accelerating progress. Many of these are health behaviours: avoidingstress, controlling blood pressure, exercising and healthy diets do not require much additionalexpense. A combination of such measures can have an impressive effect on health and lifeexpectancy. Our experimental studies in the industry have shown that it is possible to postponeage-related changes by up to 20 years at present. More rapid prolonging of human life ispossible by advancing biogerontological studies and intervention programmes that need moreresources than they currently have available to them.

Key words:

, , ,