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Results 301 - 350 of 1456
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Dozier W A WA - - 2008
Three energy balance experiments were conducted to determine AMEn of glycerin using broiler chickens of diverse ages. In experiment 1, two dietary treatments were fed from 4 to 11 d of age. Dietary treatments consisted of a control diet (no added glycerin) and a diet containing 6% glycerin (94% control ...
Sogunle O M - - 2008
This study was conducted to determine the effect of housing systems on the performance, carcass characteristics and the haematology of 150 four-week old Anak titan strains of broiler chicks in a completely randomized design. The birds were allocated randomly into two treatment (cage and floor) groups of three replications containing ...
Lopez G - - 2008
Three experiments were carried out to determine AME and AMEn of corn and soybean meal (SMB) in diets for growing broilers. In experiments 1 and 2, ingredient-specific basal diets or a combination of these basal diets with corn and SBM were prepared. For corn, the substitution was 25, 50, or ...
Abdukalykova S T - - 2008
We examined the effects of vitamin E (VE) and Arg on the subpopulations of T lymphocytes in peripheral blood after an infectious bursal disease virus vaccination (20 d old, n = 54). Broiler chickens were fed diets with normal levels of Arg (NARG, 1.2%) or high levels of Arg (HARG, ...
Ponte P I P - - 2008
Free-range chickens are assumed to consume low to moderate levels of pasture, although the effects of forage intake in broiler performance and poultry meat quality remain to be established. In addition, despite cellulases and hemicellulases being widely used as feed supplements to improve the nutritive value of cereal-based diets for ...
Ma Y L - - 2008
1. A total of 320 1-d-old Arbor Acres broiler chicks were used to investigate the effect of Cu(2+)-loaded montmorillonite (CM) on the growth performance, intestinal morphology and activities of brush border enzyme in the intestinal mucosa and digestive enzyme in the intestinal digesta of broilers. 2. The chicks were assigned ...
Jaturasitha S - - 2008
This study examined the effects of 4 genotypes of chicken, all suitable for extensive fattening, on carcass and meat quality using 320 chickens divided into 4 equally sized groups. The comparison included 2 indigenous chicken strains from Thailand, Black-boned and Thai native (Thai), and 2 imported chicken breeds, Bresse and ...
Rodenburg T B - - 2008
1. The aim of this study was to assess the feasibility of 100% organic feed for organic broilers by comparing it with 80% organic feed (situation at the time of the experiment; 2004) and 95% organic feed (alternative). 2. Diets were optimised for nutritional value, allowing a maximum 10% increase ...
Rama Rao S V - - 2008
1. Soybean meal (SBM) was replaced with sesame seed meal (SSM) at proportions of 0.00, 0.33, 0.67 and 1.00 on a protein basis in broiler diets (2 to 42 d of age). Each diet was fed to 8 replicates of 5 birds each. 2. Body weight gain, food efficiency, ready-to-cook ...
Virden W S - - 2007
Three experiments (Exp) were conducted to delineate a suitable model for inducing conditions mimicking physiological stress with minimal bird handling. For Exp 1, Ross x Ross 308 male chicks were fed a control diet or a diet containing 5 mg of corticosterone (CS)/kg from d 1 to 7. For Exp ...
Senkoylu N - - 2007
Day-old male chicks were used to test the effects of a combination of formic and propionic acids (CFP) added to wheat- and barley-based diets on the performance and gut histomorphology of broilers. The CFP, containing formic and propionic acids based on an inorganic phyllo-silicate carrier, was added to starter and ...
Amerah A M - - 2007
This study investigated the influence of particle size and feed form on the performance, the AME(n), and the gross morphological and histological parameters of various segments of the digestive tracts of broilers fed wheat-based diets. The experimental design was a 2 x 2 factorial arrangement of treatments evaluating 2 wheat ...
Baurhoo B - - 2007
Two experiments were conducted to evaluate lignin and mannanoligosaccharides as alternatives to antibiotic growth promoters in broilers. Dietary treatments for the 2 studies were 1) negative control (CTL-, antibiotic free); 2) positive control (CTL+, diet 1 + 11 mg of virginiamycin/kg); 3) mannanoligosaccharide (MOS; diet 1 + BioMos: 0.2% to ...
Yoo Hoon - - 2009
Elimination kinetics and tissue disposition of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) in male chickens (Gallus gallus) was determined following exposure by subcutaneous implantation. Chickens were exposed to two levels of PFOA or PFOS for 4wk and then allowed to depurate for an additional 4wk. These exposures did not ...
Dahiya J P - - 2007
Two experiments were conducted to study the effect of various levels of DL-Met or 2-hydroxy-4-methylthiobutanoic acid (MHA-FA) on Clostridium perfringens and other intestinal bacteria in broiler chickens. In each experiment, 2 cages of 6 birds (14 d posthatch) were assigned to 1 of 7 different diets in a 2 x ...
Bonier Frances - - 2007
Many young birds on the Arctic tundra are confronted by a challenging task: they must molt their feathers and accumulate fat stores for the autumn migration before climatic conditions deteriorate. Our understanding of the costs and constraints associated with these stages is extremely limited. We investigated post-juvenal molt and premigratory ...
Romero L Michael - - 2008
One major assumption for endocrine studies is that hormone titers are consistent within an individual so that if hormone titers are low relative to the cohort on one day, they are relatively low compared to the cohort on other days. This is an especially important assumption for most field studies ...
Lewis P D - - 2007
1. In two trials, broiler breeders were grown to a mean body weight of 2.0 to 2.2 kg at 20 weeks on 8L:16D and transferred to 16L:8D at various ages between 69 and 175 d of age at mean body weights varying between 1.0 and 2.7 kg. Other groups were ...
Parsaie S - - 2007
1. The aim of the present study was to compare wheat-based diets supplemented with arabinoxylanase, bile acid and virginiamycin with a maize-based diet in their effects on the performance of broilers. 2. The diets were fed to 5 groups of broilers. Group A received a maize-based diet (control), and groups ...
Brickett K E - - 2007
The objective of this study was to examine main and interactive effects of nutrient density (ND), feed form (FF; mash, pellet), and lighting program (12L:12D, 20L:4D) on production characteristics and meat yield of broilers raised to 35 d of age. Diets (starter, grower, and finisher) were formulated so that amino ...
Renema R A - - 2007
A 3 x 4 x 2 factorial design trial was conducted to determine the effect of 3 broiler breeder strains, 4 target BW profiles, and 2 photostimulation ages on sexual maturation traits. A total of 560 pullets from each strain (Hubbard Hi-Y, Ross 508, and Ross 708) were housed in ...
Lopez G - - 2007
An experiment was conducted to study energy retained (TER) as fat (TERF) and protein (TERP) in 3 strains of birds with different growth rate; commercial broilers, Barred Plymouth Rock, and Leghorns. Birds were fed ad libitum a diet providing 3,100 kcal of AMEn/kg and 20% CP from 0 to 42 ...
Lucas D M - - 2007
Lysine maize (Zea mays), LY038, was developed through the application of modern biotechnology to accumulate free Lys in the germ portion of maize grain and provide an alternative to direct addition of supplemental Lys to poultry diets. Maize LY038 x MON 810 was produced by conventional breeding of LY038 with ...
Brickett K E - - 2007
The aim of this study was to examine the main and interaction effects of 3 dietary nutrient densities (low-, medium-, high-density), 2 feed forms (mash, pellet), and 2 lighting programs (20L:4D, 12L:12D) on the walking ability and skeletal quality of broiler chickens raised to a young age (35 d). Forty-eight ...
Fanatico A C - - 2007
Consumer interest in free-range and organic poultry is growing. Two concurrent experiments were conducted to assess 1) the impact of alternative genotype and production system and 2) the impact of genotype and diet on meat quality of chickens for specialty markets. Specifically, a slow-growing genotype (slow) and a fast-growing genotype ...
Harrow Sally A - - 2007
A real-time quantitative PCR assay targeting a 16S-23S intergenic spacer region sequence was devised to measure the sizes of populations of Lactobacillus salivarius present in ileal digesta collected from broiler chickens. This species has been associated with deconjugation of bile salts in the small bowel and reduced broiler productivity. The ...
Pirgozliev V - - 2008
The aim of the experiment was to study the effect of dietary organic acids, fumaric and sorbic, on nitrogen corrected apparent metabolisable energy (AME(N)), metabolisability of nutrients, endogenous losses and performance on young broiler chickens. A total of 56 male Ross broilers were used in a growing experiment from 14 ...
Rathgeber B M - - 2007
Standard commercial practice is to deny poultry access to feed 8 to 12 h prior to slaughter. Occasionally a flock of turkeys is marketed at several ages, and starvation can occur for birds that are not shipped. For this project multiple marketed female turkeys were fed a special diet (nutritive ...
Willis W L - - 2007
A study was conducted to evaluate the effect of combined Shiitake mushroom (Lentinus edodes) extract with probiotics (PrimaLac) on the growth and health of broiler chickens. In trial 1, 540 d-of-hatch chicks were randomly assigned to 6 treatment groups, replicated 3 times, with 15 males and 15 females per pen ...
Taylor M - - 2007
Two 42-d floor pen studies were conducted to compare broiler (Ross x Ross 308) performance and carcass measurements when broilers were fed diets containing grain from either second-generation lepidopteran insect-protected corn (MON 89034; study 1) or second-generation lepidopteran combined with second-generation corn rootworm-protected and glyphosate-tolerant corn (MON 89034 x MON ...
Taylor M - - 2007
A 42-d floor pen study was conducted to compare broiler (Ross x Ross 308) performance and carcass measurements when fed diets containing lepidopteran-protected corn combined with glyphosate-tolerant corn (MON 89034 x NK603) with those of broilers fed diets containing corn grain from the conventional control (similar genetic background to the ...
Dong X F - - 2007
Two hundred 1-day-old male commercial Arbor Acres broiler birds were randomly distributed to a control group and a polysavone group (5 replicates of 20 birds each) to investigate the influence of polysavone, a natural extract from alfalfa, on abdominal fat deposition and immunity in broiler chickens. Birds in the control ...
Nain S - - 2007
Broiler diets are frequently fortified with vitamin D (D3) above the recommended levels in an attempt to prevent commonly occurring leg problems. Since the basal levels of dietary D3 are rarely known, there is a risk of over-supplementation. Over-supplementation of D3 has been shown to have detrimental effects on the ...
Olukosi Oluyinka A - - 2008
Energy utilization in broilers as influenced by supplementation of enzymes containing phytase or carbohydrase activities was investigated. Day-old male broilers (480) were allocated to four slaughter groups, thirty broilers in the initial slaughter group and 150 broilers in each of the final slaughter groups on days 7, 14 and 21. ...
Lee Sung-Hyen - - 2008
The current study was conducted to evaluate the effect of dietary supplementation with a lyophilized powder made from plums (P) on host protective immune responses against avian coccidiosis, the most economically important parasitic disease of poultry. One-day-old White Leghorn chickens were fed from the time of hatch with a standard ...
McReynolds J L - - 2007
Clostridium perfringens is the etiologic agent of necrotic enteritis (NE) and is ubiquitous in nature. The incidence of NE has increased in countries and commercial companies that have stopped using antibiotic growth promoters. The mechanisms of colonization of C. perfringens and the factors involved in onset of NE are not ...
Rauber R H - - 2007
This work was conduced to determine the performance parameters of initial-phase turkey poults fed 7 different doses of aflatoxins in the diet. Three hundred thirty-six 1-d-old male turkey poults were used in this research. Turkeys were divided into 7 treatments according to aflatoxin doses (T1 = control; T2 = 20 ...
Liu J R - - 2007
1. This study was conducted to evaluate the feasibility of using a transformed Lactobacillus reuteri Pg4 strain harbouring a rumen fungal xylanase gene as a probiotic supplement in a wheat-based poultry diet. 2. A total of 400 broiler chicks was allocated to two treatment groups with or without supplementation with ...
Swennen Q - - 2007
Research has shown that broiler chickens reared on a low-protein diet have a more efficient protein digestion. However, information on the fate of absorbed amino acids in relation to the dietary crude protein level in poultry is sparse. Therefore, this study aimed at developing a methodology for a 1-(13)C(1)-leucine breath ...
Mtileni B J - - 2007
The influence of stocking density on BW, egg weight (EW), and feed intake (FI) in Ross broiler breeder hens (n = 120) was investigated during the late medium egg production period (from 50 to 54 wk of age). Birds were randomly allocated to 6 pens in densities of 15, 20, ...
Lopez G - - 2007
An experiment was conducted to reevaluate the concept of using AME vs. AME(n) values for broiler diets. Growing male broilers and adult Leghorn roosters were fed either a single standard diet from 0 to 49 d or a series of starter (0 to 21 d), grower (21 to 35 d), ...
Chapman H D - - 2007
The acquisition of immunity by chickens infected 18 h post-hatch with 100 oocysts of Eimeria maxima and reared in floor-pens in contact with their droppings was investigated. In the first experiment, birds were placed on new litter and immunity was measured at 2, 3, 4, and 5 weeks by calculation ...
Teguia A - - 2007
The utilization of grain legumes as a protein source for poultry is limited by the presence of antinutritional factors. Various methods have been developed to eliminate them. One hundred and sixty 3-week-old birds of 622 g were used to evaluate the effect of feeding 15% of common beans (Phaseolus vulgaris) ...
Umoren U E - - 2007
The aim of the study was to assess the replacement value of earth ball for maize in broiler diets. A feeding trial was conducted for eight weeks using 220 unsexed Anak 2000 broiler chickens in a completely randomized design to assess the effect of replacement of maize with Icacinia manni ...
Olanrewaju H A - - 2007
We compared the acid-base balance in broiler chickens provided diets containing 2 dietary electrolyte balances (DEB), and administered with either adrenocorticotropic hormone (ACTH) or saline solution. Diets were moderate (174 mEq/kg) or high (241 mEq/kg) DEB formulated by altering Na-K-Cl based on actual analysis. The experiment was designed as a ...
Delezie E - - 2007
Commercial broilers are exposed to a number of stressors prior to slaughter, including feed deprivation, crating density (high vs. low), and transportation. Hence, the individual and additive or overruling effects of these stressors on welfare and energy metabolism were examined. Live weight gain, rectal temperature, physiological responses, and meat quality ...
Lu Q - - 2007
The effects of chronic heat stress on growth, proportion of carcass and fat deposition, and meat quality were investigated in 2 genetic types of chickens. One hundred and eight 5-wk-old male chickens from a commercially fast-growing strain (Arbor Acres, AA) and a locally slow-growing species (Beijing You chicken, BJY) were ...
Dahiya J P - - 2007
Three experiments were conducted to determine whether there is a causative relation between dietary glycine concentration and intestinal Clostridium perfringens growth in broiler chickens. Expt. 1 showed that glycine concentrations were higher (P < 0.05) in jejunum and ileum of birds fed fat-encapsulated glycine compared with crystalline glycine. In Expt. ...
Schiavone A - - 2007
The present study aimed at evaluating the effects of different doses of silymarin in diet on broiler performances and meat quality. For the trial, 180 male chicks (ROSS 508), were allocated in to three groups (S0, S40 and S80) of 60 animals each receiving a basal diet supplemented with 0 ...
Baurhoo B - - 2007
A study was conducted to evaluate lignin and mannan oligosaccharides as potential alternatives to antibiotic growth promoters in broilers. Dietary treatments included an antibiotic-free diet (CTL-), a positive control (CTL+, 11 mg/kg of virginiamycin), and an antibiotic-free diet containing BioMos (MOS, 0.2% to 21 d and 0.1% thereafter) or Alcell ...
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