the chemical composition, in situ  rumen degradability coefficients of dry matter (dm) and crude protein (cp), in vitro gas production and in vivo  digestibility were evaluated for olive cake (oc) silage treated (dm basis) with different additives as follows: (1) untreated oc; (2) oc, 8% molasses and 0.4% formic acid and (3) oc, 8% molasses, 0.4% formic acid and 0.5% urea. after addition of the...

Feed intake, milk production, and milk fatty acid profiles of dairy cows fed corn silage-based diets with different protein and starch concentrations were measured in a 3-period experiment in a changeover design using 12 Holstein cows. Each experimental period lasted for 3 wk. The diet fed as a total mixed ration consisted of 45% corn silage, 5% coarsely chopped wheat straw, and 50% concentrate...

This study investigated the effect of season (wet and dry) on milk composition of the dromedary camel (Camelus dromedarius). Milk samples representing the wet and dry seasons were analyzed for total solids (TS), fat (F), solids-non-fat (SNF), ash, crude protein (CP), nitrogen soluble at pH 4.6 (SN), mineral content (MC) and casein fraction (CnF). Camel milk had higher (P

Background: Expression of virus coat protein (CP) in Escherichia coli often leads to production of partially folded aggregated proteins which are called inclusion bodies. Grapevine fanleaf virus (GFLV) is one of the most serious and widespread grapevine virus diseases around the world and in Iran.Objective: The main objective of this study was to find a s...

Previous research has demonstrated that increasing the CP concentration from 16 to 26% in milk replacers fed to male preruminant dairy calves at 1.5% of BW (DM basis) daily resulted in increased ADG, G:F, and deposition of lean tissue. However, the effects of dietary CP would be expected to vary depending on ME intake. Here, male Holstein calves < 1 wk old were used to determine the effects of ...

This study compared the effects of two levels of crude protein (CP) fed during late gestation on the performance, blood metabolites, and ovarian activity of Holstein cows. One-hundred and six cows (42 primigravid and 64 multiparous) 32 d before calving were divided into two groups and fed diets containing moderate (12.7% CP, 36% rumen undegradable protein, (RUP) or high (14.7% CP, 40% RUP) prot...

The purpose of this experiment was to evaluate the effects a low-protein diet on selected variables protein and energy metabolism in blood serum as well indicators fermentation faeces (fecal crude protein, ammonia, pH, volatile fatty acids, dry matter). Twelve finishing pigs (initial body weight: 64.6 ± 3.35 kg) were randomly divided into two groups fed basal diets with (CP) levels 13.6% 15.4%,...

Ruminal and abomasal cannulated mature wethers were fed 800 g daily of low quality bermudagrass (49 days of age, containing 8.6% crude protein) and used in a 4 x 4 latin square experiment to study the effects of different protein supplements on the daily quantity of protein and amino acids reaching the abomasum and on rumen microbial protein synthesis. Treatments were as follows: (1) control (l...

The present study evaluates the consequences of a change in pig and poultry protein nutrition through compound feed over time France, on raw materials consumption, economic performances, environmental impacts. It has been conducted using “Prospective Aliments” model by Céréopa, which applies principles linear programming at national scale (France). is based prospective approach. A decrease 1 2 ...