Organic Acids Invaluable Tool For The Health Of Poultry
According to a recent study released by Novus International this week, protected benzoic acid improves the growth performance of birds attacked by Eimeria.
Frances Yan, a senior poultry nutrition research scientist at Novus, told the annual meeting of the Poultry Science Association that it would work better when combined with sticky grains and low-digested protein ingredients to increase dietary complexity.
Eimeria is a common intestinal health disorder that can result in significant loss of poultry house due to mortality and consequent reduced performance.
Photo: Bart Nijs
She said a battery test was conducted on 384-day-old male broilers to assess the effects of protected benzoic acid on growth performance and intestinal health of broilers affected by diet type.
The study included 6 dietary treatments, 3x2 factoring, 3 diets (10% rye, 7.5% rapeseed meat, 3% poultry powder, and combinations thereof) and 2 protected benzoic acids (0 and 500g / ton AVIMATRIX) Novus International Inc).
Eight replicates of 8 chickens were fed to each diet. All birds were orally gavaged on day 14 with a recommended dose of 10x coccidiosis vaccine.
Body weight, feed intake, FCR and mortality were determined on days 7, 14, 19 and 26. On day 27, blood samples were collected for serum staining, IL-10 and IL-4 assays. Two-way ANOVA was performed on the data to assess the main effects and interactions; the mean was separated by Fisher's protected LSDA test.
The results showed that no matter whether rapeseed and poultry meal (CPM) were included, 10% rye was contained on days 7, 14, and 19, and body weight decreased (P < 0.05).
Regardless of the type of diet, benzoic acid increased body weight on days 7 and 14 (p < 0.05). On day 26, without benzoic acid, chickens fed cpm had higher body weight than chickens fed the combination, and fed rye-fed chickens did not differ significantly between the two; benzoic acid increased for 26 days Bw broilers fed the combination 12%, but not in the other two types, which is the trend of interaction (p = "0.09)." >
Until the 14th day, the FCR had no significant effect on the type of diet, but increased the 17 and 7 points by benzoic acid on days 7 and 14, respectively (P < 0.05). Dietary type and benzoic acid had an interaction between day 19 (p = "0.07)" and 26 (p > < 0.05), where binding of rye and cpm resulted in a higher fcr, which was reversed by benzoic acid supplementation.
Feed intake was affected by diet type on days 14, 19 and 26 (P < 0.05), with higher bw usually corresponding to higher feed intake but not significantly affected by benzoic acid (p> 0.10).
Serum IL-4 was highest in chickens fed rye, followed by CPM and rye, followed by CPM (P < 0.05), indicating that rye can induce an inflammatory response.
Yan said: "Organic acids are a valuable tool in today's poultry industry. We really only look at what is going on for the healthy rectal challenges of poultry."