Generally, <30% of dairy cattle's nitrogen intake is retained in milk. Large amounts of nitrogen are excreted in manure, especially in urine, with damaging impacts on the environment. This study explores the effect of lowering dietary degradable nitrogen supplies--while maintaining metabolisable protein--on dairy cows' performance, nitrogen use efficiency and gas emissions (NH3, N2O, CH4) at ba...

Context Irrespective of the fact that European roe deer (Capreolus capreolus) occurs from Mediterranean to north Arctic Circle and is one most abundant widespread species, are fed in winter Germany Austria. Hunters justify supplementary feeding with argument do not find sufficient high-quality food our landscape they would have starve winter.Aims Our aim was measure quality energy content brows...

Royal spiny lobster is a marine crustacean with significant economic value as popular consumer product. However, information on the energy-providing nutrients of scarce, especially those living in southern coast Nigeria. This study provides about nutritional quality and metabolizable energy flesh shell lobster, Panulirus regius. Proximate mineral compositions were analyzed, while contributions,...

The oral [C]bicarbonate technique (oCBT) was assessed for the determination of short-term energy expenditure (EE) under field conditions. A total of eight Alaskan huskies were fed two experimental diets in a cross-over experiment including two periods of 3 weeks. Effects of diets on EE, apparent total tract digestibility (ATTD) and on plasma hormones, blood lactate and glucose were furthermore ...

Maximal sustained energy intake (SusEI) appears limited, but the factors imposing the limit are disputed. We studied reproductive performance in two lines of mice selected for high and low food intake (MH and ML, respectively), and known to have large differences in thermal conductance (29% higher in the MH line at 21°C). When these mice raised their natural litters, their metabolisable energy ...

The oral [(13)C]bicarbonate technique (o(13)CBT) was assessed for the determination of short-term energy expenditure (EE) under field conditions. A total of eight Alaskan huskies were fed two experimental diets in a cross-over experiment including two periods of 3 weeks. Effects of diets on EE, apparent total tract digestibility (ATTD) and on plasma hormones, blood lactate and glucose were furt...

This paper reports on the effects of plant species diversity and sowing method pasture yield quality. Nineteen seed mixtures perennial ryegrass (PR), plantain (Pl), white clover (WC) red (RC) were sown 26 March 2015 at Lincoln University. Four PR, Pl WC repeated with separated in alternate drill rows. Plots grazed by sheep irrigated. After 4 years, a mixture 25% each based count – equivalent to...

The cultivation of red clover for fodder purposes on typical low-humus chernozems the northern part Right-Bank Forest-Steppe Ukraine is profitable. Regardless technology components, it provides a net profit UAH 14,962-23,743 per hectare with profitability 88-259% and cost 1 ton feed units 1,415-2,662 raw protein 5,363-10,265, payback energy costs in terms gross (EER) yield 6.2-9.0 metabolisable...