This present study was conducted to evaluate the effects of dietary inclusion of 4, 8 and 12 g kg-1 phytogenic feed additives mixture on performance, egg quality, ovary parameters, serum biochemical parameters and yolk trimethylamine level in laying hens. The results of experiment have shown that egg weight was increased by supplementation of 12 g kg-1 feed additive wherea...

Field-collected gravid females were used to test a series of inter- and intraspecific hypotheses on egg size and number in 23 species of black flies. Qualitative differences between bird and mammal blood did not result in significant differences with respect to fecundity properties. The five species with overwintering larvae produced more eggs than did the 18 species with overwintering eggs. Co...

Of 92 drug-resistant Mycobacterium tuberculosis strains isolated from sputum specimens, 86 showed growth in two types of 7H12 broth, one with egg yolk and the other without egg yolk. In addition, two strains grew only in plain 7H12 broth without yolk, and four others were recovered only in the medium supplemented with egg yolk. The radiometrically detected growth was higher in the presence of e...

in this experiment, the influence of prebiotic and probiotic supplementation in the broiler breeder diets on body weight, mortality, feed intake, egg production, hatchability and humoral immunity response was investigated. a total number of 13140 female and 1260 male breeders (cobb 500) with 26 wks of age were allocated to three treatments with six replicates (800 birds each replicate). breeder...

this present study was conducted to evaluate the effects of dietary inclusion of 4, 8 and 12 g kg-1 phytogenic feed additives mixture on performance, egg quality, ovary parameters, serum biochemical parameters and yolk trimethylamine level in laying hens. the results of experiment have shown that egg weight was increased by supplementation of 12 g kg-1 feed additive whereas egg production, feed...

background: tetraploid rainbow trout has a key role in producing infertile triploid fish by indirect method and introducing them in cultivation system. objectives: the purpose of the present study was to determine the optimal heat shock for tetraploidy induction in rainbow trout with emphasis on egg size. methods: the efficiency of different shock temperatures: 28, 30 and 32 °c, durations: 1, 5...

background and objectives: diagnosis of avian tuberculosis by conventional culture method is still considered as the “gold standard” technique. the main objective of this study was to compare growth of mycobacterium avium subsp. avium on four specific mycobacterial cultures such as glycerinated lowenstein-jensen medium, pyruvate-enriched lowenstein- jensen medium, mycobactin j-supplemented herr...