Abstract A common design of a high-level radioactive waste (HLW) disposal system consists the canisters emplaced in tunnels or shafts, with space between heat-emitting and surrounding rock filled bentonite-based material. Understanding behavior this barrier, particular effect prolonged heating on its properties, is important to assess barrier’s long-term performance. The objective present study...

Calcium formate (CaFo; Rovelan–Lanxess Corporation, Germany) is a commonly used source of calcium in poultry and swine feed in the EU. Due to increased cost, US interest in alternate feedstuffs has grown. The objective of this study was to evaluate CaFo in broiler diets as an alternate calcium source during a 49d pen trial. A total of 2,160 male Cobb 500 broilers were randomized and placed in 4...

An experiment was conducted to evaluate the influence of different Ca sources (limestone, Ca chloride, and Lipocal, a fat-encapsulated tricalcium phosphate, TCP) in conjunction with 4 dietary levels of non-phytate P (NPP) on performance, ileal digestibility of Ca and P, and bone mineralization in broiler chickens. Calcium sources were also evaluated in vitro to measure acid-binding capacity (AB...

Pulmonary hypertension syndrome (PHS), commonly called ascites, is a costly metabolic disease occurring in rapid-growing chickens. Research has shown that dietary sources of energy (KHAJALI and FAHIMI, 2010) and protein (IZADINIA et al., 2010) have significant effects on pulmonary hypertensive response in broiler chickens. It has been suggested that rapid-growing broilers may be in the status o...

The objective of the present study was to evaluate reduction calcium (Ca), crude protein (CP), metabolizable energy (ME), and available phosphorus (aP) in nutritional matrix Brazilian commercial broiler diets supplemented with both phytase superdosing (1500 FTU/kg) or conventional doses (500 on feed cost profitability, performance, bone mineralization, carcass yield from 1 42 d. A total 1200 on...

An experiment was conducted to investigate the effect of thyroid gland activity modulation (Hyper or hypothyroidism) on energy utilization in broiler chickens. Two hundred and forty one-day-old Cobb broiler chicks were distributed into three dietary metabolizable energy (ME) treatment groups (80 chicks each). The control group (E0) was fed basal diet (3150 kcal/kg diet), the second group (E1) w...

OBJECTIVE The study was conducted to evaluate the effects of different methionine (Met) sources on production performance, reproduction performance, egg quality and serum biochemical indices in broiler breeders. METHODS After receiving a basal diet (containing 0.25% Met) for a 2-wk pretreatment period, a total of 360 39-wk-old Lingnan yellow broiler breeders were randomly allocated to four tr...

A study was conducted on the impact of aflatoxin (AF) and mycotoxin binders on immunization against Infectious Bursal Disease (IBD) and Infectious Bronchitis (IB) in chickens. Broiler chicks (7-day-old) were randomly assigned to 9 dietary treatments with 4 replicates of 12 chicks each. Treatments were 1) control; 2) diet containing corn naturally contaminated with AF (NCD); 3) NCD + 0.2% Farmag...

The objective of this study was to evaluate whether the addition enzymes phytase and xylanase, isolated or associated, in liquid form after feed pelletization could improve energy utilization digestibility calcium phosphorus by broiler chickens. Three experiments were performed using 120 birds each, divided into five treatments with eight replicates per group (n = 3), identified as: experiment ...