Broilers were allocated to eight treatments consisting of two energy levels: normal (NE) and high (HE), four folic acid (FA) levels (2.2, 5, 10, 15 ppm). On day 42, male female chickens euthanized per pen, white striping (WS) evaluation was performed on the pectoralis major. Birds fed HE diets had reduced (P < 0.05) feed intake conversion rate than those NE diets. With increasing FA levels, ...

An experiment was conducted to determine the relationship between in vitro assays to estimate quality and ileal nutrient and energy digestibility of various corn sources. Twelve samples of corn were analyzed for gross energy (GE), N, moisture, crude fat (CF), salt-soluble protein content (SSP), and vitreousness. Six of the 12 sources of corn had similar proximate composition but ranged in pairs...

A study was conducted to determine the apparent metabolizable energy (AME) requirement of Korean native ducklings for hatch to 21 d of age. A total of 336 one-day-old male Korean native ducklings were used in a completely randomized design having 8 dietary treatments to provide a range of AME content from 2,600 to 3,300 kcal/kg (i.e., 100 kcal/kg disparity). Eight experimental diets containing ...

Abstract The objective of this study was to evaluate the vitamin D3 (vitD) and 25-hydroxy D (25-OHD) requirements for finisher pig performance bone density. Seventy-two pigs (62 ± 11.1 kg BW) were allotted 36 pens (n = 2 pigs/pen) across 4 dietary treatments 9 pens/trt) 51 d. Corn-soybean meal mash diet were: 1) Diet containing 75 IU/kg vitD; 2) 150 vitD (NRC requirement); 3) 750 4) As 1 plus 0...

This study compared organically reared chickens with conventionally reared ones with regard to fatty acid composition traits. The conventional and organic flocks with an average age of 40 days were raised in an indoor pen. Stocking densities of conventional and organic ones were 0.05 and 0.13 m/bird, respectively. The conventional diet was formulated with common ingredients whereas the organic ...

In August 1995 the development of a new bird repellent, Flight Control containing anthraquinone, was initiated. A series of laboratory formulation testing, cage and pen studies were conducted. The anthraquinone discrimination threshold (concentration at which birds could detect the test material) for starlings (Sturnus vulgaris) was 151 ppm in treated feeds. The model revealed that to achieve 9...

Public concern about the welfare of hens kept in conventional cages has become an important issue worldwide. This study examined the effects of conventional cages (CC) and floor pens (FP) on hens’ health and egg production. A total of 84 19-wk-old Bovan Brown hens were randomly assigned into 2-bird cage (n = 12), providing 968 cm2 floor space per hen or 10-bird floor pens (n = 6), providing 371...