Effects of mineral premix withdrawal or reduction on broilers performance

2005 ◽  
Vol 2005 ◽  
pp. 161-161
Author(s):  
B. Navidshad ◽  
A. Jafari Sayadi ◽  
A. Abolghasemi
Keyword(s):  
Adverse Effect ◽  
Heat Stress ◽  
Broiler Chickens ◽  
Vitamin Supplements ◽  
Broiler Performance ◽  
Mineral Supplements ◽  
Normal Vitamin ◽  
Finisher Diets

Many studies have been carried out to reduce dietary mineral premix level with no adverse effect on broiler performance. Controversial results have been reported in this respect. Deyhim et al (1994) showed that at normal temperature and also under heat stress at 28-49 days of age, removing mineral and vitamin supplements cause reduction in performance, but withdrawal of mineral premix alone, didn’t affect production. Christmas et al (1995) suggest that it is possible to removing vitamin and mineral supplements from finisher diets of broiler chickens at last week of raring period. The aim of this trail was study of effect of withdrawing or reduction mineral premix from diets with normal vitamin premix level on broilers performance.

scholarly journals Growth Performance and Characterization of Meat Quality of Broiler Chickens Supplemented with Betaine and Antioxidants under Cyclic Heat Stress

Antioxidants ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 336 ◽  
Author(s):  
Majid Shakeri ◽  
Jeremy J. Cottrell ◽  
Stuart Wilkinson ◽  
Hieu H. Le ◽  
Hafiz A. R. Suleria ◽  
...  
Keyword(s):  
Heat Stress ◽  
Product Quality ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Thiobarbituric Acid ◽  
Respiratory Alkalosis ◽  
Drip Loss ◽  
Final Body Weight ◽  
Broiler Performance ◽  
Commercial Diet

Heat stress (HS) causes oxidative stress, which compromises broiler performance and meat quality. The aim of this study was to determine whether dietary antioxidants could be used as an amelioration strategy. Seventy-two day-old-male Ross-308 chicks were exposed to either thermoneutral or cyclical heat stress conditions. Diets were either control commercial diet (CON), CON plus betaine (BET), or with a combination of betaine, selenized yeast, and vitamin E (BET + AOX). Heat stress increased the rectal temperature (p < 0.001), respiration rate (p < 0.001), decreased blood pCO2 (p = 0.002), and increased blood pH (p = 0.02), which indicated the HS broilers had respiratory alkalosis. Final body weight was decreased by HS (p < 0.001), whereas it was improved with BET (p = 0.05). Heat stress reduced cooking loss (p = 0.007) and no effect on drip loss, while BET decreased the drip loss (p = 0.01). Heat stress reduced the myofibril fragmentation index (p < 0.001) and increased thiobarbituric acid reactive substances (p < 0.001), while these were improved with the combination of BET + AOX (p = 0.003). In conclusion, BET overall improved growth rates and product quality in this small university study, whereas some additional benefits were provided by AOX on product quality in both TN and HS broilers.

NUTRITIVE VALUE AND QUALITY OF OAT GROATS FOR BROILER CHICKENS

1981 ◽  
Vol 61 (4) ◽  
pp. 1013-1021 ◽  
Author(s):  
H. W. HULAN ◽  
F. G. PROUDFOOT ◽  
C. G. ZARKADAS
Keyword(s):  
Adverse Effect ◽  
Broiler Chickens ◽  
Broiler Chicken ◽  
Nutritive Value ◽  
Partial Replacement ◽  
Total Replacement ◽  
Commercial Broiler ◽  
Biological Performance ◽  
Finisher Diets

Four experiments were carried out to ascertain the nutritive value and quality of oat groats (OG) as a partial replacement for corn and total replacement for wheat in practical diets for broiler chicken using one commercial broiler genotype, Cobb. In each of experiments 1 and 2, 360 day-old chicks of each sex were housed in Petersime batteries and fed starter (1–21 days) and finisher (23–42 days) diets containing 0, 200 and 400 g of Eastern (E) OG or Western (W) OG/kg. In each of experiments 3 and 4, 320 day-old chicks of each sex were housed in eight floor pens and fed starter diets containing 0, 400 and 600 g EOG/kg and finisher diets containing 0, 400, 600 and 800 g EOG/kg. Feeding up to 600 g/kg OG in starter diets and 800 g/kg in finisher diets had no significant adverse effect on biological performance or monetary returns.

scholarly journals The Effects Of Replacing Groundnut Cake With Cottonseed Cake On The Performance And Carcass Characteristics Of Broiler Chickens

2021 ◽  
Vol 25 (2) ◽  
pp. 145-151
Author(s):  
A. M. Bamgbose
Keyword(s):  
Broiler Chickens ◽  
Carcass Characteristics ◽  
Daily Weight Gain ◽  
Cottonseed Cake ◽  
Feeding Trial ◽  
Broiler Performance ◽  
Groundnut Cake ◽  
Carcass Parameters ◽  
Dietary Treatments ◽  
Finisher Diets

The effects of replacing groundnut cake(GNC) with cottonseed cake (CSC) at 0, 50 and 100% levels in starter and finisher diets on broiler performance, carcass characteristics and gut morphology were evaluated in a 56 - day feeding trial. Average daily feed intake, average daily weight gain, and feed/gain ratio were significantly (P< 0.05) affected by dietary treatments at the starter and finisher phases. Eviscerated weight (E. W) dressing percentage, total edible meat and abdominal fat pad decreased with increasing level of CSC while weights and lenghts of small intestine, large intestine, caeca and gizzard weight increased significantly (P<0.05) from 0 to 100% CSC diets. It can be concluded that CSC inclusion at 50 and 100% level had adverse effect on the performance and carcass parameters assessed.

scholarly journals Pretreatment with probiotics ameliorate gut health and necrotic enteritis in broiler chickens, a substitute to antibiotics

AMB Express ◽  
2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Danish Sharafat Rajput ◽  
Dong Zeng ◽  
Abdul Khalique ◽  
Samia Sharafat Rajput ◽  
Hesong Wang ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Production Systems ◽  
Economic Losses ◽  
Necrotic Enteritis ◽  
Poultry Production ◽  
Gut Health ◽  
Growth Promoters ◽  
Broiler Performance ◽  
Antibiotic Growth Promoters ◽  
Microbial Strains

AbstractNecrotic enteritis (NE) is being considered as one of the most important intestinal diseases in the recent poultry production systems, which causes huge economic losses globally. NE is caused by Clostridium perfringens, a pathogenic bacterium, and normal resident of the intestinal microflora of healthy broiler chickens. Gastrointestinal tract (GIT) of broiler chicken is considered as the most integral part of pathogen’s entrance, their production and disease prevention. Interaction between C. perfringens and other pathogens such as Escherichia coli and Salmonella present in the small intestine may contribute to the development of NE in broiler chickens. The antibiotic therapy was used to treat the NE; however European Union has imposed a strict ban due to the negative implications of drug resistance. Moreover, antibiotic growth promoters cause adverse effects on human health as results of withdrawal of antibiotic residues in the chicken meat. After restriction on use of antibiotics, numerous studies have been carried out to investigate the alternatives to antibiotics for controlling NE. Thus, possible alternatives to prevent NE are bio-therapeutic agents (Probiotics), prebiotics, organic acids and essential oils which help in nutrients digestion, immunity enhancement and overall broiler performance. Recently, probiotics are extensively used alternatives to antibiotics for improving host health status and making them efficient in production. The aim of review is to describe a replacement to antibiotics by using different microbial strains as probiotics such as bacteria and yeasts etc. having bacteriostatic properties which inhibit growth of pathogens and neutralize the toxins by different modes of action.

scholarly journals Evaluation of Three Formulations of Essential Oils in Broiler Chickens under Cyclic Heat Stress

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1084
Author(s):  
Jared Ruff ◽  
Guillermo Tellez ◽  
Aaron J. Forga ◽  
Roberto Señas-Cuesta ◽  
Christine N. Vuong ◽  
...  
Keyword(s):  
Heat Stress ◽  
Essential Oils ◽  
Broiler Chickens ◽  
Bone Mineralization ◽  
Body Core Temperature ◽  
Control Group ◽  
Group 4 ◽  
Body Core ◽  
Cyclic Heat ◽  
Group 2

The objective of the present research was to assess the dietary supplementation of three formulations of essential oils (EO) in chickens under heat stress (HS). Day-of-hatch Cobb 500 chicks (n = 500) were randomly distributed into four groups: 1. HS control + control diets; 2. HS + control diets supplemented with 37 ppm EO of Lippia origanoides (LO); 3. HS + control diets supplemented with 45 ppm LO + 45 ppm EO of Rosmarinus officinalis (RO) + 300 ppm red beetroot; 4. HS + 45 ppm LO + 45 ppm RO + 300 ppm natural betaine. Chickens that received the EO showed significant (p < 0.05) improvement on BW, BWG, FI, and FCR compared to control HS chickens. Average body core temperature in group 3 and group 4 was significantly (p < 0.05) reduced compared with the HS control group and group 2. Experimental groups showed a significant reduction in FITC-d at 42 days, a significant increase in SOD at both days but a significant reduction of IFN-γ and IgA compared with HS control (p < 0.05). Bone mineralization was significantly improved by EO treatments (p < 0.05). Together these data suggest that supplemental dietary EO may reduce the harmful effects of HS.

scholarly journals Bacillus subtilis-Based Probiotic Improves Skeletal Health and Immunity in Broiler Chickens Exposed to Heat Stress

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1494
Author(s):  
Sha Jiang ◽  
Fei-Fei Yan ◽  
Jia-Ying Hu ◽  
Ahmed Mohammed ◽  
Heng-Wei Cheng
Keyword(s):  
Bacillus Subtilis ◽  
Heat Stress ◽  
Broiler Chickens ◽  
Heat Waves ◽  
Stress Sensitivity ◽  
Current Data ◽  
Negative Effects ◽  
Skeletal Health ◽  
Welfare Issue ◽  
And Performance

The elevation of ambient temperature beyond the thermoneutral zone leads to heat stress, which is a growing health and welfare issue for homeothermic animals aiming to maintain relatively constant reproducibility and survivability. Particularly, global warming over the past decades has resulted in more hot days with more intense, frequent, and long-lasting heat waves, resulting in a global surge in animals suffering from heat stress. Heat stress causes pathophysiological changes in animals, increasing stress sensitivity and immunosuppression, consequently leading to increased intestinal permeability (leaky gut) and related neuroinflammation. Probiotics, as well as prebiotics and synbiotics, have been used to prevent or reduce stress-induced negative effects on physiological and behavioral homeostasis in humans and various animals. The current data indicate dietary supplementation with a Bacillus subtilis-based probiotic has similar functions in poultry. This review highlights the recent findings on the effects of the probiotic Bacillus subtilis on skeletal health of broiler chickens exposed to heat stress. It provides insights to aid in the development of practical strategies for improving health and performance in poultry.

Effects of Dietary Level of Rice Distiller’s Dried Grains on Performance and Meat Quality of Chickens

2021 ◽  
Author(s):  
P.K. Dang ◽  
N.T.P. Giang ◽  
T.T. Nguyen ◽  
S. Chu-Ky ◽  
N.C. Oanh ◽  
...  
Keyword(s):  
Meat Quality ◽  
Broiler Chickens ◽  
Animal Feed ◽  
Raw Materials ◽  
Control Diet ◽  
Broiler Chicks ◽  
Meat Yield ◽  
Broiler Performance ◽  
National University ◽  
By Products

Background: In Vietnam, animal feed mainly depends on imported raw materials, while available agro-industrial by-products are often released into the environment and only a its unsubstantial portion used as an animal feed. Therefore, efficient use of these by-products as animal feed is essential. This work aimed to evaluate the effect of dietary levels of rice distiller’s dried grain (Rice DDG) on broiler performance, meat yield and meat quality. Methods: The research was conducted at the experimental station, Vietnam National University of Agriculture, Vietnam, from May to September 2020. A total of 240 a day-old broiler chicks were randomly assigned into 4 groups with 3 replications to receive 4 diets with different levels of RDDG at 0, 5, 8 and 10% for 14 weeks. Growth, meat yield and meat quality were estimated. Result: ADG was higher in broiler chickens fed diets with rice DDG compared to that in control diet at 12 and 14 weeks (P less than 0.05) while ADFI and FCR were not affected by the diets. There were significantly no differences in meat yield and quality among the diets. In conclusion, rice DDG could be used to partially replace main ingredients in chicken diets.

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