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Situations of fertility stall in sub-Saharan Africa
Fertility transition Fertility stall Contraception Labour force participation Sub-Saharan Africa
2015/7/22
A comparative study of fertility trends since 1950 in 30 countries from sub-Saharan Africa revealed several cases of “fertility stall”, that is a change from downward fertility trends to flat- or even...
Conditions for cold stress development in dairy cattle kept in free stall barn during severe frosts
winter cows wind chill milk production housing
2015/7/7
The impact of low temperatures combined with higher velocity of ventilated air in winter during
severe frost in a free stall barn on the development of cold stress in Holstein-Friesian breed dairy c...
The Effects of Gilts Housed Either in Group with the Electronic Sow Feeding System or Conventional Stall
Electronic Sow Feeding Stall Gilts Gestation Piglets Group Housing
2016/5/19
This experiment was conducted to assess the welfare and productivity of gestating gilts in groups with the electronic sow feeding (ESF) system compared to conventional stalls. A total of 83 gilts (Yor...
Comparison of Milk Yield and Animal Health in Turkish Farms with Differing Stall Types and Resting Surfaces
Resting Surface Stall Type Milk Yield Cattle Health Problems
2016/5/17
The current study was carried out to determine the influence of different resting surfaces and stall types on milk yield and animal health. Study was carried out in Bursa that is one of the most impor...
Damaged DNA may stall patrolling molecule to initiate repair（图）
Damaged DNA stall patrolling molecule initiate repair
2015/3/4
Sites where DNA is damaged may cause a molecule that slides along the DNA strand to scan for damage to slow on its patrol, delaying it long enough to recognize and initiate repair. The findi...
Modelling nitrogen excretion, elephant grass growth and animal production in a stall-feeding dairy system
Dairy heifers digestibility nitrogen excretion elephant grass
2011/1/12
This study reports on a simulation model of livestock-forage with excreted nitrogen (N) as a source of N for elephant grass (Pennisetum purpureum) growth. It is shown that nitrogen partitioning betwee...
Modeling growth of dairy cattle heifers fed elephant grass under stall-feeding system in Uganda
Models weight gain heifers elephant grass simulation
2011/1/11
A simulation model was developed to predict growth rate and days required to reach target mating weight of dairy cattle heifers in a stall-feeding system. Input parameters for the model are gross ener...
Physical properties of synthetic bedding materials for free-stall dairy cow
cows synthetic bed mats bedding materials physical properties
2010/8/11
Rest is a prerequisite for the well-being of cows and they spend 40?0% of the time lying down. In this study the basic physical properties, the friction coefficient, heat flux as a function of time an...
Study of blade to blade flows and circumferential stall propagation in radial diffusers and radial fans by vortex cloud analysis
radial turbomachines rotating stall vortex dynamics
2010/3/12
The objective of this paper is extension of vortex cloud simulation to the study of deep rotating stall cell propagation in radial turbomachines. Previous studies [1][2] provided the basic analysis, s...
Comparative Evaluation of Cotton Seed Meal and Sunflower Seed Meal in Urea Molasses Blocks Versus Commercial Concentrate as Supplement to Basal Ration of Wheat Straw with Stall-fed Buffalo Calves
Cotton Seed Meal Sunflower Seed Meal Commercial Concentrate Wheat Straw
2016/4/14
Eighteen water buffalo calves of Nili-Ravi breed (about 15 months age and of 147 12 kg average body weight and mixed sex) were used with six animals on each treatment. All the animals were fed long wh...
Prediction of the airfoil characteristics, particularly for large incidence angles when stall occurs, depends on the prediction of separation. Turbulent flow around NACA 0012 airfoil in the range of i...
Effect of Supplementary Feeding Strategies on the Performance of Stall Fed Dual-purpose Dairy Cows Fed Grass Hay-based Diets
Dual-purpose Cows Plane of Nutrition Feeding Strategy Milk Yield Live Weight Body Condition
2016/4/12
Supplementary feeding strategies were evaluated from pre-calving throughout lactation on 24 dual-purpose Mpwapwa breed cows in their second or greater lactation, weighing 246-455 kg. The Mpwapwa breed...