Nutrient limitation determines the primary production and species composition of many ecosystems. Here we apply an adaptive dynamics approach to investigate evolution of the ecological stoichiometry of primary producers and its implications for plant-herbivore interactions. The model predicts a trade-off between the competitive ability and grazing susceptibility of primary producers, driven by ...

Seventy six high and low producer cows were selected to determine the composition of the blood and milk parameters, and their interrelationships to determine the indices which could be useful to improve the milk yield. The highest mean blood concentrations were found in high producer cows. Mean values for blood urea nitrogen (BUN), serum protein (SPtn), creatinine, triglycerides (TGs), choleste...

Microalgae Chlorella Vulgaris is enriched in vitamin B12 and cobalt ion which is positioned in the center of the vitamin molecule. This study aimed to investigate how different concentrations of cobalt chloride salt affected the vitamin B12 production by utilizing CO2  gas, to assess C. vulgaris biomass. Therefore, Bold’s basal medium used as the medium and  0.5, 1....

OF DOCTORAL DISSERTATION HELSINKI UNIVERSITY OF TECHNOLOGY P.O. BOX 1000, FI-02015 TKK http://www.tkk.fi Author Marko Outinen Name of the dissertation Effect of pre-treatment of cheese milk on the composition and characteristics of whey and whey products Manuscript submitted 2.10.2009 Manuscript revised 24.11.2009 Date of the defence 20.1.2010 Monograph x Article dissertation (summary + origina...

From a total of 320 bacterial samples from wound swab and urine 169 (53%) gram-negative bacteria were isolated, of which 42 (25%) extended-spectrum beta-lactamase (ESBL) producers were detected by double-disk synergy test. ESBL producers were significantly more resistant against amoxiclav, Co-trimoxazole, ciprofloxacin, amikacin and gentamicin than non-ESBL producers. Among the 42 ESBL producer...

Milk is among the five most sold products in world, and dairy market Brazil one of important segments industry. Small producers have a significant participation milk chain, although flaws production system traditional techniques are responsible for stagnating activity, especially on small properties. In addition to this, level education determining factor increasing family income. The objective...

A field study was performed to assess safety of smallholder fresh cow's milk around Mongu, Western Province, Zambia. This involved observation and sampling of milk along the value chain from milking to point-of-sale and storage. Samples were collected from 86 cows, from 9 farmers, selling through two dairy cooperatives, with additional samples from informal markets. Production was very low; aro...

The quality of T cell responses differs dramatically during infancy and has been implicated in the susceptibility to infections, but the underlying cellular pathways are not well known. Here, we determined the effector phenotype of T cells in adenoids of 103 children with adenoid hypertrophy that underwent adenoidectomy. We compared children with sole upper airway obstruction with those sufferi...