scholarly journals The influence of feed ingredients on CP and starch disappearance rate in complex diets for broiler chickens

2021 ◽  
Vol 100 (5) ◽  
pp. 101068
Author(s):  
Naja Bloch Pedersen ◽  
Mark Hanigan ◽  
Faegheh Zaefarian ◽  
Aaron J. Cowieson ◽  
Mette Olaf Nielsen ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Disappearance Rate ◽  
Feed Ingredients

The effect of reduction or removal of dietary vitamin supplement on broiler chickens performance

2005 ◽  
Vol 2005 ◽  
pp. 167-167
Author(s):  
H. A. Yousefzadeh ◽  
I. Yousefian ◽  
B. Navidshad ◽  
M. Safari
Keyword(s):  
Vitamin E ◽  
Adverse Effects ◽  
Broiler Chickens ◽  
Feed Additives ◽  
Dietary Vitamin ◽  
Vitamin Supplement ◽  
Feed Ingredients ◽  
Naturally Occurring ◽  
Performance Reduction ◽  
Reasonable Proportion

While vitamins naturally occurring in plant and animal based feed ingredients can supply a reasonable proportion of the birds daily needs, their contribution is rarely considered during formulation. This situation arises due to variability, especially in cereals and vegetable proteins, for example, the vitamin E content of corn can vary from 10 to 40 IU/kg. Because of this uncertainty in the natural supply of vitamins within a feed, the bird’s vitamin supply is therefore met by the addition of synthetic vitamins, usually in the form of a so called premix, that contains all vitamins and perhaps some other micronutrients and feed additives. This premixes use according to producer suggestions and in some cases their doses can be higher than real requirements. Skinner et al (1992) removed vitamin premixes from 21 day of age and did not report any adverse effects. Gwyther et al (1992) showed sever performance reduction by vitamin premix withdrawal from 21 to 49 day of age. This experiment was conducted to determine the effects of Vitamin supplement levels on broiler chickens from 28 to 49 days of age.

Influence of age on the apparent ileal amino acid digestibility of feed ingredients for broiler chickens

2005 ◽  
Vol 46 (2) ◽  
pp. 236-245 ◽  
Author(s):  
K.H. Huang ◽  
V. Ravindran ‡ ◽  
X. Li † ◽  
W.L. Bryden †
Keyword(s):  
Amino Acid ◽  
Broiler Chickens ◽  
Feed Ingredients

Performance and carcass characteristics of broiler chickens fed diets supplemented with graded levels of feed enzyme Roxazyme-G®

2007 ◽  
Vol 2007 ◽  
pp. 247-247
Author(s):  
A.O.K. Adesehinwa ◽  
A.B. Omojola
Keyword(s):  
Broiler Chickens ◽  
Nutrient Utilization ◽  
Limiting Factor ◽  
Poultry Production ◽  
Feed Ingredients ◽  
Exogenous Enzyme ◽  
Livestock Feed ◽  
Livestock Feeding ◽  
Poultry Diets ◽  
The Cost

Feed remains the most important cost in animal production. The need for feed ingredients, which will reduce the cost of production, is the basis for most livestock feed and production research. Man and his livestock are in competition for the basic ingredients. Availability of such feed ingredients thus becomes the key limiting factor in poultry production, hence the need for alternative and locally available feedstuffs. The presence of undegradable and complex carbohydrate, non-starch polysaccharides (NSPs) in some alternative and locally available feedstuffs exerts some anti-nutritional properties and thus can limit their use in livestock feeding (Yoruk et al., 2006). Worse still is the fact that chickens are not capable of hydrolyzing NSPs that mask protein carbohydrate (Petterson and Aman, 1989). Exogenous enzyme supplementation has been reported to be used in poultry diets to improve nutrient utilization, the health and welfare of the birds, product quality and to reduce pollution as well as to increase the choice and content of ingredients which are acceptable for inclusion in diets (Aderemi et al., 2006). Since most work with exogenous enzymes has been carried out to evaluate its effect on feed intake and growth characteristics of broilers, the aim of this study was to investigate the effect of graded level of feed enzyme Roxazyme-G® on the performance, carcass and meat qualities of broiler finishers.

Measurement of the true ileal calcium digestibility of some feed ingredients for broiler chickens

2018 ◽  
Vol 237 ◽  
pp. 118-128 ◽  
Author(s):  
M.N. Anwar ◽  
V. Ravindran ◽  
P.C.H. Morel ◽  
G. Ravindran ◽  
A.J. Cowieson
Keyword(s):  
Broiler Chickens ◽  
Feed Ingredients

scholarly journals Nutritional Potentials of Atypical Feed Ingredients for Broiler Chickens and Pigs

Animals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1196
Author(s):  
Olufemi Oluwaseun Babatunde ◽  
Chan Sol Park ◽  
Olayiwola Adeola
Keyword(s):  
Growth And Development ◽  
Broiler Chickens ◽  
Normal Growth ◽  
Canola Meal ◽  
Feed Ingredients ◽  
Practical Applications ◽  
Alternative Feed ◽  
Specific Factors ◽  
Species Specific ◽  
Geographical Locations

Diets play an important part in monogastric nutrition. This is because diets are comprised of various feed ingredients that supply energy and nutrients required by broiler chickens or pigs for normal growth and development. The main feed ingredients used for formulating diets for pigs and chickens are comprised of cereals and oilseed meals. Corn and soybean meal (SBM) are mostly used in North America for animal feeds. However, due to geographical locations, availability, and cost, ingredients such as wheat, barley, and canola meal are often used for feeding pigs and chickens. Overdependence on common ingredients such as corn and SBM for decades has resulted in rising costs of animal production. Therefore, the need has risen to examine the potentials of alternative feed ingredients capable of supplying the required energy and nutrients for monogastric animals. Research has been carried out to identify and evaluate several uncommon feed ingredients and their utilization by broiler chickens and pigs. Thus, this review enumerates the nutritional potentials of feed ingredients in 4 main nutritional classes using information from articles in peer-reviewed journals. Feeding practices, advantages, and limitations of using certain uncommon feed ingredients are discussed. In addition, species-specific factors in terms of practical applications are explored.

scholarly journals Tracing metabolic routes of feed ingredients in tissues of broiler chickens using stable isotopes

2004 ◽  
Vol 83 (8) ◽  
pp. 1376-1381 ◽  
Author(s):  
V.C. Cruz ◽  
A.C. Pezzato ◽  
C. Ducatti ◽  
D.F. Pinheiro ◽  
Sartori ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Broiler Chickens ◽  
Feed Ingredients

scholarly journals Prevalence of aflatoxin b1 in some common poultry feed ingredients and optimum inclusion levels of mycofix binder as feed additive on performance of broiler chickens chickens

2020 ◽  
Vol 45 (2) ◽  
pp. 137-149
Author(s):  
H. W. Kehinde ◽  
A. A. Sekoni ◽  
T. S. Olugbemi ◽  
P. A. Onimisi
Keyword(s):  
Weight Gain ◽  
Aflatoxin B1 ◽  
Broiler Chickens ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Poultry Feed ◽  
Feed Conversion ◽  
Feeding Trial ◽  
Feed Ingredients ◽  
Permissible Limits

A preliminary study was carried out to determine the prevalence of Aflatoxin B1 (AfB1) contamination and common moulds growing in some selected poultry feed raw materials in Zaria. Five different feed raw materials:Maize (MZ), soybean cake (SBC), groundnut cake (GNC), brewers dried grain (BDG) and maize offal (M/O), were collected from four feed mills and the open market. The common moulds isolated from the samples were Mucor spp., Aspergillus spp., Fusarium spp., Penicillum spp., Curvularia spp. and Rhizopus spp. AfB1 contamination showed that maize and soya bean cake were less than the 20 parts per billion (ppb) permissible limits for AfB1 in poultry feed ingredients, while BDG, M/O and GNC were 40, 60 and 80 % respectively above 20 ppb permissible limits. A feeding trial was conducted to evaluate the response of broiler chickens to Mycofix a toxin binder. Three hundred and thirty Ross, 1-day old broiler chicks were assigned to five dietary treatments, each with three replicates of 22 chicks per replicate in a completely randomized design (CRD). Treatment 1 was the control diet without Mycofix while treatments 2, 3, 4 and 5 had Mycofix included at 100, 200, 300 and 400 g /100kg diet, respectively at both starter and finisher phases. Experimental diets and water were given to the birds ad libitum during eight weeks of the feeding trial. Data were subjected to Analysis of Variance (ANOVA) using General Linear Model procedure of SAS and significant differences among treatment means were compared using Dunnette test of significance. Results of the starter phase showed that birds fed 400 g/100kg Mycofix diet had the best final body weight (902.67g), weight gain (839.67g) and average daily weight gain (29.98g). Birds fed 200 g /100 kg Mycofix had the lowest feed conversion ratio of 1.6  and the least cost per  kilogram gain(₦138.52).At the finisher phase birds on 400 g/100kg Mycofix diet had the best final weight (2345.3g), weight gain (1403.3g), average daily gain (50.1g), feed conversion ratio (2.1) and least feed cost per kilogram gain (₦167.20). It may be concluded that addition of Mycofix to diets of broiler chickens at 400g/ 100kg at both starter and finisher phases of the study improved performance significantly and gave the least cost of production.

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