scholarly journals Effect of a Single Posthatch Intubation of Nutrients on Subsequent Early Performance of Broiler Chicks and Turkey Poults

1993 ◽  
Vol 72 (10) ◽  
pp. 1861-1866 ◽  
Author(s):  
Y. NOY ◽  
Y. PINCHASOV
Keyword(s):  
Broiler Chicks ◽  
Turkey Poults ◽  
Early Performance

scholarly journals Effect of zinc imprinting and replacing inorganic zinc with organic zinc on early performance of broiler chicks

2017 ◽  
Vol 96 (4) ◽  
pp. 861-868 ◽  
Author(s):  
S. Mwangi ◽  
J. Timmons ◽  
T. Ao ◽  
M. Paul ◽  
L. Macalintal ◽  
...  
Keyword(s):  
Broiler Chicks ◽  
Organic Zinc ◽  
Early Performance

Effects of Fusaric Acid in Broiler Chicks and Turkey Poults

2005 ◽  
Vol 4 (6) ◽  
pp. 356-359 ◽  
Author(s):  
S.O. Ogunbo . ◽  
D.R. Ledoux . ◽  
J.N. Broomhead . ◽  
A.J. Bermudez . ◽  
G.E. Rottinghaus .
Keyword(s):  
Fusaric Acid ◽  
Broiler Chicks ◽  
Turkey Poults

Improved early performance of turkey poults given anAloe feroxleaf extract with bentonite

2014 ◽  
Vol 55 (5) ◽  
pp. 675-683 ◽  
Author(s):  
F.W. Edens ◽  
D.T. Ort ◽  
B.L. Ludescher
Keyword(s):  
Turkey Poults ◽  
Early Performance

scholarly journals The zinc requirements of broiler chicks and turkey poults fed on purified diets

1984 ◽  
Vol 51 (3) ◽  
pp. 467-477 ◽  
Author(s):  
W. A. Dewar ◽  
J. N. Downie
Keyword(s):  
Zinc Oxide ◽  
Blood Serum ◽  
Bone Development ◽  
Live Weight ◽  
Mortality Rates ◽  
Broiler Chicks ◽  
Maximal Concentration ◽  
Turkey Poults ◽  
Low Concentrations ◽  
Zn Concentration

1. Chicks and turkey poults were fed for 3 weeks on low-zinc diets, prepared from purified ingredients, supplemented with zinc oxide at graded levels.2. Birds of both species given the unsupplemented basal diets grew poorly, with high mortality rates. All had severe hyperkeratosis but bone development was normal. Only when birds received diets with low concentrations of added Zn were leg abnormalities observed.3. Zn requirements were assessed visually from dose-response graphs. The chick required 18 mg Zn/kg diet for maximal live weight and 24 mg Zn/kg for maximal Zn concentration in blood serum. The responses of tibial Zn and net retention of Zn did not reach plateaux within the range of dietary Zn concentrations studied. The turkey poult's Zn requirement for maximal live weight was 25 and 28–29 mg/kg for net retention of Zn and for maximal concentration of Zn in blood plasma and in the tibia; 41 mg Zn/kg diet was required for maximal Zn in blood serum.4. Liver Zn was not correlated with dietary Zn in either species.

Effects of in ovo supplementation of probiotics on performance and immunocompetence of broiler chicks to an Eimeria challenge

2016 ◽  
Vol 7 (5) ◽  
pp. 699-705 ◽  
Author(s):  
C.M. Pender ◽  
S. Kim ◽  
T.D. Potter ◽  
M.M. Ritzi ◽  
M. Young ◽  
...  
Keyword(s):  
Spleen Weight ◽  
Broiler Chicks ◽  
Immune Organ ◽  
In Ovo ◽  
Probiotic Supplementation ◽  
Tissue Samples ◽  
Organ Weights ◽  
Mixed Inoculum ◽  
Early Performance ◽  
Eimeria Infection

Coccidiosis is regarded as the parasitic disease with the greatest economic impact on the poultry industry due to reduced performance and increased mortality. A study was conducted to investigate the effects of in ovo administration of probiotics on hatchability, performance, immune organ weights, and lesion scores in broiler chicks during a mixed Eimeria infection. At embryonic day 18, 210 eggs were injected with either sterile water or 1×106 cfu probiotic bacteria. On day 3 post-hatch, half of the chicks from each treatment group were challenged with a mixed inoculum of Eimeria acervulina, Eimeria maxima and Eimeria tenella. Measurements and tissue samples were taken on day of hatch (DOH) and days 3, 9 and 15. On day 9, 24 birds per treatment were scored for intestinal Eimeria lesions. No differences were seen among groups for hatchability as well as for body weight (BW), BW gain (BWG), or immune organ weights prior to the Eimeria challenge. On day 9, the non-challenged birds with probiotic supplementation had higher BW and BWG than the non-supplemented controls while no differences were seen among the challenged groups. On day 15, probiotic supplemented birds had improved BW compared to the non-supplemented birds as well as increased BWG from day 9 to 15. Bursa weight was not affected by treatment at any time point while spleen weight was greater in supplemented birds on day 15. Birds receiving the probiotic had significantly lower mortality than non-treated birds. Additionally, gross lesion severity was reduced due to probiotic supplementation in all intestinal segments evaluated. These results suggest that in ovo supplementation of probiotics may improve early performance and provide protection against a mixed Eimeria infection.

Modelling and optimising early performance for broiler chicks

2009 ◽  
Vol 2009 ◽  
pp. 211-211
Author(s):  
H Ahmadi ◽  
A Golian
Keyword(s):  
Broiler Chicken ◽  
Body Weight Gain ◽  
Production Performance ◽  
Group Method ◽  
Broiler Chicks ◽  
Optimum Level ◽  
Feed Conversion ◽  
Dietary Nutrients ◽  
Metabolisable Energy ◽  
Early Performance

Several methods have been introduced to estimate the optimum level of dietary nutrients such as metabolisable energy (ME), crude protein (CP), and lysine (Lys) in broiler chicken production. Performance optimisation is usually measured as maximising body weight gain and minimising adjusted feed conversion ratio (Adj FCR). One useful method is to model a system that requires an explicit mathematical input-output relationship. Group method of data handling-type neural network (GMDH-type NN) and genetic algorithm (GA) is used to model and optimise an output in an imprecise environment (Yao, 1999). The purpose of this study was to apply the GMDH-type NN and GA methods to provide an optimised formula for broiler chicken performance based on the dietary level of ME, CP, and Lys.

scholarly journals Immunoprotectivity of attenuated turkey poxvirus in turkey poults and broiler chicks

2006 ◽  
Vol 7 (2) ◽  
Author(s):  
SO Omatainse ◽  
EM Odoya ◽  
A Abegunde ◽  
BG Agyogbo ◽  
NI Ogo ◽  
...  
Keyword(s):  
Broiler Chicks ◽  
Turkey Poults

scholarly journals Early transition of the digestive system to exogenous nutrition in domestic post-hatch birds

1995 ◽  
Vol 73 (3) ◽  
pp. 471-478 ◽  
Author(s):  
Y. Pinchasov
Keyword(s):  
Digestive System ◽  
Growth Promotion ◽  
Meleagris Gallopavo ◽  
Feed Consumption ◽  
Broiler Chicks ◽  
Glucose Levels ◽  
Turkey Poults ◽  
Dose Dependent ◽  
Hatch Period ◽  
Early Transition

The effect of early transition of the digestive system to exogenous nutrition was examined in three experiments with growing birds. A nutrient mixture (0·5 ml) of glucose, starch and oil (1:1:0·5, by vol) was orally administered immediately after hatch to turkey poults (Meleagris gallopavo) having immediate or delayed access to feed (Expt 1). Increasing amounts (0, 0·25 and 0·5 ml) of this mixture were administered immediately after hatch to turkey poults (Expt 2), or to broiler chicks (Gallus domesticus; Expt 3). The relative weights of the gastrointestinal tract (GIT) and its ingesta content, and the amylolytic capability of the pancreas were examined during the immediate post-hatch period (to 30 h). Oral administration of nutrients immediately after hatching only slightly influenced the growth of the pancreas and its amylolytic activity, but significantly increased GIT weight in both species, in a dose-dependent manne. It is suggested that early post-hatching of the digestive system by the forced administration of nutrient mixture induces anatomical and metabolic changes in the digestive system slightly earlier than in birds with late access to feed. This increases GIT content and plasma glucose levels, resulting in enhanced feed consumption and growth promotion.

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