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...

this study was conducted to investigate the effect of bacillus subtilis and licheni formis on broiler breeder performance and gastrointestinal health of their progenies. a total of 336 broiler breeder hens (cobb 500) from 22 to 32 weeks of age were used in a completely randomized design of 2 × 2 factorial arrangement with four treatments, each with seven replicates. dietary treatments included:...

Three experiments were conducted to test the potencies of nine sources of cholecalciferol using a chick bioassay. The tested products were compared with a Sigma Reference Standard (SRS). All of the diets fed to the chicks were prepared from corn-soybean meal. Each of the products was in premix form containing cholecalciferol. Their physical characteristics reflected the methods used to produce ...

Abstract: Initial seed vigor and sowing density interact in establishment of plants the field, can thus affect expression plasticity wheat crop yield physiological quality seeds produced. The aim this study was to evaluate effect levels combination with densities on potential seeds. cultivars BRS Gralha-Azul Sabiá were used a randomized block experimental design 2 × 4 factorial arrangement, fou...

We establish the following new Stirling-type approximation formulas for the factorial function n! ≈ √ 2πnne−n √ n+ 1 6 + 1 72n − 31 6480n2 − 139 155520n3 + 9871 6531840n4 and n! ≈ √ 2πnne−n 4 √ n2 + n 3 + 1 18 − 2 405n − 31 9720n2 . Our estimations give much more accurate values for the factorial function than some previously published strong formulas. We also derive new sequences converging to...

In ovo feeding, injecting nutrients into the amnion of the avian embryo, may enhance jejunal nutrient uptake, activity of the intestinal enzymes, and posthatch growth. This hypothesis was tested in the following in ovo feeding (IOF) experiments. In experiment 1, 400 eggs were evenly distributed among 4 nutritional treatments at 23 d of embryonic development (23E) and administered 1 of 4 treatme...

a study was carried out to investigate the effects of organic acid mixture as well as two methionine supplements on performance, carcass characteristics and weight of gastrointestinal tract in broiler chickens. six hundred unsexed day-old ross 308 broiler chicks were utilized in a factorial arrangement of treatments (3×2) based on completely randomized design (crd) of 4 replicates of 25 chicks ...

Four experiments were conducted, in two stages, to evaluate protein and limiting amino acids' (lysine and methionine + cystine) levels in pre-starter diets on broilers' performance. In each experiment of Stage 1, 640 new-born male Ross 308 cockerels were randomly allocated to eight dietary treatments with a 2 × 4 factorial arrangement. In experiment 1-1, two levels of crude protein (CP: 21% and...

an experiment was conducted to evaluate the effects of 1α-oh-d3 either with or withoutcholecalciferol, microbial phytase as well as different levels of dietary calcium, and phosphorus onbroiler chickens, performance. a number of 576 male broiler chickens (ross 308) were made use of ina completely randomized design of a factorial arrangement (3×2×2×3), comprised of 36 treatments, 4replicates of ...