25-Hydroxycholecalciferol As an Alternative to Vitamin D3 in Diets with Different Levels of Calcium for Broilers Reared Under Heat Stress
نویسندگان
چکیده
The objective was to evaluate the effect of dietary 25-hydroxycholecalciferol (25(OH)D3) or vitamin D3 (VitD3) and different total calcium (Ca) levels on performance, carcass characteristics, blood, enzymatic, bone biochemistry broilers reared under heat stress between 1 42 days age. A 504 male, Cobb 500, broiler chickens were distributed in a completely randomized design 2 × 4 factorial arrangement (VitD3 25(OH)D3 four Ca (100, 90, 80 70% recommendations Rostagno et al. (2011)), eight treatments, seven replicates nine per cage. Feed intake feed conversion ratio did not (p>0.05) vary when reduced sources supplemented diets from 21 for chickens. 25 (OH)D3 increased weight gain results (p<0.05). From d, no differences observed yields meat quality, deposition P, alkaline phosphatase concentration. Higher serum (p<0.05) concentrations P found fed with 25(OH)D3. replacement VitD3 reduction 30% negatively affect tibia at age, stress.
منابع مشابه
an investigation of accuracy and complexity across different proficiency levels in written narrative task
abstract this quasi-experimental study was aimed at examining the impact of storyline complexity on the grammatical accuracy and complexity of advanced and intermediate efl learners. a total of 65 advanced and intermediate efl learners were selected from iran language institute (ili). an intact group including 35 intermediate participants and another intact group with 30 advanced participants ...
Effects of different levels of zinc on the performance and immunocompetence of broilers under heat stress.
Male broilers were used to evaluate the effect of zinc on performance and immune competence during heat stress (HS). Broilers raised in either a thermoneutral (TN, 23.9 degrees C constant) or HS (23.9 to 35 degrees C cycling) environment were fed a low zinc diet (LZ; 34 mg/kg), an adequate zinc diet (AZ; 68 mg/kg), or a supplemental zinc diet (HZ; 181 mg/kg). Humoral immunity was assessed by in...
متن کامل25-Hydroxylation of vitamin D3: relation to circulating vitamin D3 under various input conditions.
BACKGROUND Neither the efficiency of the 25-hydroxylation of vitamin D nor the steady state relation between vitamin D(3) and 25-hydroxyvitamin D [25(OH)D] has been studied in humans. OBJECTIVE We aimed to examine the relation between serum vitamin D(3) and 25(OH)D in normal subjects after either oral administration of vitamin D(3) or ultraviolet-B radiation across a broad range of inputs. ...
متن کاملeffect of vitamin premix withdrawal in diets containing different levels of energy on performance and carcass characteristics of broilers subjected to heat stress
this experiment was conducted to evaluate the effect of vitamin premix withdrawal from diets containing different energy levels on growth performance and carcass characteristics of broilers subjected to heat stress in a completely randomized design with 2×3 factorial arrangement containing, 2 levels of energy (low and high energy) and 3 levels of vitamin premix withdrawal (28, 35 and 42 days). ...
متن کاملEffects of Oxcarbazepine and Levetiracetam on Calcium, Ionized Calcium, and 25-OH Vitamin-D3 Levels in Patients with Epilepsy
OBJECTIVE The primary objective of the present study was to further elucidate the effects of oxcarbazepine (OXC) and levetiracetam (LEV) monotherapies on the bone health status of patients with epilepsy. METHODS This study included 48 patients who attended our epilepsy outpatient clinic, had a diagnosis of epilepsy, and were undergoing either OXC or LEV monotherapy and 42 healthy control subj...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Brazilian Journal of Poultry Science
سال: 2022
ISSN: ['1806-9061', '1516-635X']
DOI: https://doi.org/10.1590/1806-9061-2021-1559