Performance of layer or broiler breeder hens varies in response to different probiotic preparations
نویسندگان
چکیده
منابع مشابه
Growth performance and immune response of broiler chickens fed diets supplemented with probiotic and (or) prebiotic preparations
The objective of this research was to investigate the efficacy of dietary inclusion of probiotics Primalac® and Bactocell® and prebiotic Fermacto® on broiler’s performance and immune response, individually or in combination. A total of 540 one-d-old male Ross 308 broiler chicks were allocated into 6 experimental treatments with 6 replicates of 15 birds per replicate from 1 to 42 d of age. The b...
متن کاملIron requirements of broiler breeder hens.
A study was conducted to investigate Fe requirements of broiler breeders. One-hundred-fifty-six Cobb 500 broiler breeder hens were individually placed in electrostatically painted cages at 22 weeks. The study was composed of an adaptation phase, in which hens were fed corn-soy-wheat bran diets until 35 wks. An Fe deficient mash diet (24.6 ppm Fe) was provided from 35 to 46 wk in order to induce...
متن کاملAflatoxicosis in Layer and Breeder Hens
During the past few decades there has been a steady increase in global production of poultry meat and eggs. Although the high nutritive value of eggs and poultry meat has resulted in increasing demand, food quality and safety factors are becoming increasingly significant in determining market value of poultry products. Poultry production is one of the fastest growing sectors of Iranian agricult...
متن کاملCharacterization of energetic efficiency in adult broiler breeder hens.
This trial characterized residual feed intake (RFI) and residual maintenance requirement (RME(m)) as measures of energetic efficiency in broiler breeder hens. The RFI was defined as the difference between observed and expected ME intake and RME(m) as the difference between observed and expected maintenance requirements. A total of 600 Ross 708 1-d-old pullets were placed in floor pens. At 16 wk...
متن کاملgrowth performance and immune response of broiler chickens fed diets supplemented with probiotic and (or) prebiotic preparations
the objective of this research was to investigate the efficacy of dietary inclusion of probiotics primalac® and bactocell® and prebiotic fermacto® on broiler’s performance and immune response, individually or in combination. a total of 540 one-d-old male ross 308 broiler chicks were allocated into 6 experimental treatments with 6 replicates of 15 birds per replicate from 1 to 42 d of age. the b...
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ژورنال
عنوان ژورنال: Italian Journal of Animal Science
سال: 2011
ISSN: 1828-051X
DOI: 10.4081/ijas.2011.e31