Performance and carcass quality of broilers supplemented with antibiotics or probiotics
نویسندگان
چکیده
منابع مشابه
Carcass and commercial cuts yield in broilers of different ages fed diets supplemented with probiotics
In this study, the carcass and commercial cuts weights and yields in broilers of different ages fed diets supplemented with probiotics were determined. A total of 336 male broiler chicks (Ross-308) were randomly allocated into three treatment groups (P0, P1 and P2). A basal diet (P0), basal diet plus 0.01% (P1) and 0.02% (P2) probiotic (Saccharomyces cerevisiae, 4x10 8 cfu g -1 ) were offered t...
متن کاملPerformance and carcass quality of steers supplemented with zinc oxide or zinc methionine.
Forty-five Angus steers (avg initial wt 330 kg) were individually fed for 112 d to assess the value of supplemental Zn and source on performance and carcass quality. Steers had ad libitum access to a control diet (81 ppm Zn) of 33% whole corn, 33% ground milo, 15% cottonseed hulls and 13% cottonseed meal, or this control diet with 360 mg Zn/d added from either zinc methionine or zinc oxide. Ste...
متن کاملEffect of Probiotics on Growth Performance, Nutrient Digestibility and Carcass Characteristics in Broilers
An experiment was conducted to investigate the comparative efficacy of two probiotics of different origins (yeast and bacterial based) on the growth performance, immune response, carcass characteristics and nutrient digestibility of broilers. One hundred and twenty day old chicks were purchased from local hatchery and were randomly divided into 4 groups and each group had 3 replicates of 10 chi...
متن کاملEffect of Probiotics on Broilers Performance
A probiotic is a live microbial feed supplement, which beneficially affects the host animal by improving its intestinal balance. It has been used as a substitute of antibiotics that is being used in considerable amounts as growth promoters in broilers production and is, associated with incalculable risks for human health resulting from the use of particular feed additives. This article reviews ...
متن کاملPerformance of Broilers Supplemented with Natural Herb Extract
The objective of this research was to investigate the effects of a natural herb extract on the general performance, carcass parameters and mortality of broiler chicks. A total of 720 one-day old chicks (Cobb 500) were used in the experiment and randomly partitioned into nine pens (80 chicks per pen). Three experimental diets (C: regular starter feed; CC plus: regular starter feed supplemented w...
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ژورنال
عنوان ژورنال: Revista Brasileira de Ciência Avícola
سال: 2008
ISSN: 1516-635X
DOI: 10.1590/s1516-635x2008000400006