The current study evaluated the effect of a commercial wheat-maizesoybean meal based diet supplemented with an organic acid product containing a specific combination of formic and propionic acids (pHorce) on performance parameters in broiler chickens. One day-old broiler chickens (Ross 308) were randomly allotted to 2 treatments with 10 replicate cages/treatment and 2 birds/cage from d 1 to 21....

cross was made between the 4 selected quail populations. Growth and yield was measured on 4 replicate pens for each cross, with each pen containing a minimum of 20 birds. Growth and yield for all crosses were evaluated at each of the 4 selection ages: days 10, 17, 28, and 40. Of particular interest in this study is the change in both reciprocal and heterotic effects over time. In this study it ...

The mode of action of essential oils (EO) as growth promoters is not fully understood. One experiment was conducted to evaluate the effects of EO concentration and grain type on broiler intestinal traits. Corn (C) and wheat (W) based basal diets were formulated to have similar nutrient composition within each dietary phase. The EO containing benzoic acid (Crina Poultry Plus) was added to each b...

Pigs were weaned at 16 to 20 days of age and fed diets containing either dried whey or 6% dried porcine solubles (DPS), partially replacing dried whey protein, and one of two combinations of feed additives (either ZnO + CSP 250 or CuSO4 + Mecadox) in a 2 × 2 factorial arrangement. The diets were fed for 2 weeks and followed by a common diet for 3 weeks. Feeding the DPS-containing diet during we...

For many decades antibiotics (so called growth promoters) have been used as feed additives in various species of farm animals, to reduce the frequency of diarrhoea under certain conditions. Furthermore, in most cases performance parameters like body weight gain or feed conversion ratio improves to up to 5%. These beneficial effects of feed antibiotics are generally explained by modifications of...

The aim of this study was to examine the effects of 4 herbal products on growth performance of broiler chickens. A total of 150 d – old female broilers (Arbor Acres) were randomly divided into 5 treatments, 3 replicates with 10 birds in each. Treatments included: control (basal diet without feed additives), Digestarom (commercial product of herbal plants), Bioherbal (garlic essence, garden thym...

A meta-analysis of the effect of Topmax (ractopamine HCl) on the performance of hen and tom turkeys when administered the last 14 d of finishing was conducted. Summary data from 18 studies were included. PROC GLIMMIX (SAS Inst.) was used with a model including fixed effects of linear and quadratic Topmax, sex, breed, age and their interactions and a random study effect. Any non-significant (α >...

A total of 45 unsexed weaned Alexandria rabbits line (a paternal rabbit line), at four weeks of age (with an average initial weight 513 gm) were randomly distributed into three groups (15 each). First group (G1) was fed the basal diet (control). The other groups were fed the control diet supplemented with 300 and 400 gm digestarom ® / ton feed. The experimental period extended for five weeks. T...

Aflatoxins (AF) are a class of mycotoxins that impair poultry health and performance by causing immune suppression, liver damage, and changes in serum chemistry. The toxic effects of AF can be efficiently counteracted by some adsorbents. The aim of this study was to investigate fully characterized clay adsorbents in a feeding trial with broiler chickens to correlate in vitro and in vivo AF deto...

To explore regulation of inosinic acid content in chicken meat as a result of feed additives, 576 one-day-old male Arbor Acres broilers were randomly allotted into 8 dietary treatments including control, purine nucleotide (P), betaine (B), soybean isoflavone (S), purine nucleotide + betaine (PB), purine nucleotide + soybean isoflavone (PS), betaine +soybean isoflavone (BS), and purine nucleotid...