ORIGINAL PAPER
The effect of diluting diets with ground and pelleted or with whole wheat on the performance of growing turkeys
J. Jankowski 1,   D. Mikulski 1  
,   Z. Zduńczyk 2,   M. Mikulska 1,   J. Juśkiewicz 2
 
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1
University of Warmia and Mazury, Department of Poultry Science, Oczapowskiego 5, 10-718 Olsztyn, Poland
2
Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-747 Olsztyn, Poland
CORRESPONDING AUTHOR
D. Mikulski   

University of Warmia and Mazury, Department of Poultry Science, Oczapowskiego 5, 10-718 Olsztyn, Poland
Publication date: 2012-12-10
 
J. Anim. Feed Sci. 2012;21(4):735–747
 
KEYWORDS
ABSTRACT
The objective of this study was to determine the effect of moderate dilution (gradually up to 22.5%) of standard diets (C) with wheat in different physical forms, ground and pelleted (GW) or whole (WW), on growth rate, feed conversion ratio (FCR), carcass yield, and incidence of footpad dermatitis (FPD) in growing heavy-type turkeys. Dietary treatments in which part of the basal diet (control, C) was replaced with a low, medium, or high wheat content (8.2%, 13.3%, or 18.2% on average in groups WL, WM, and WH, respectively) were compared. Seven experimental groups consisted of six replicates each (n=30 birds) fed from 4 to 18 weeks of age. After four weeks of experimental feeding, groups GWL and WWL, relative to group C, were characterized by higher coefficients of dry matter digestibility (P=0.003), apparent nitrogen retention (P=0.096), and energy metabolizability (P=0.003), as well as by a higher metabolizable energy content of the daily ration (P<0.001). The beneficial influence of wheat, both ground and whole, was lower at higher levels of dietary dilution. In 8-week-old turkeys, the symptoms of FPD were significantly less severe in groups GWL and WWL (P=0.039). In birds aged 18 weeks, no significant differences were found among groups. Neither the amount of wheat nor its physical form had a significant effect on the average body weight of growing turkeys. Throughout the experiment, only in groups WWM and WWH were FCR values lower than in group C (P<0.001). An increase in the wheat content of diets led to a linear decrease in FCR (P<0.001), and average FCR values were significantly (P=0.004) lower in WW than in GW groups. Whole wheat, compared with ground pelleted wheat, contributed to an increase in gizzard weight (P=0.003), although it had no influence on the proportions of breast muscles, leg muscles, and fat in turkey carcasses.
 
CITATIONS (6):
1.
Whole grain in turkey nutrition. Part 2: Production results in different feeding systems
J. JANKOWSKI, Z. ZDUNCZYK, J. JUSKIEWICZ
World's Poultry Science Journal
 
2.
Effect of whole wheat feeding on gastrointestinal tract development and performance of growing turkeys
J. Jankowski, Z. Zduńczyk, D. Mikulski, B. Przybylska-Gornowicz, E. Sosnowska, J. Juśkiewicz
Animal Feed Science and Technology
 
3.
Wheat and Rice in Disease Prevention and Health
Dariusz Kokoszyński
 
4.
The effect of incremental inclusion of whole grain wheat in the diet of growing turkeys on growth performance, feed conversion ratio, cecal health, and digesta characteristics
Rebwar Ahmed, Darren Juniper, Alexandra Tonks, Caroline Rymer
Livestock Science
 
5.
Effect of whole wheat feeding on selected immune parameters in growing male turkeys
B. Tykałowski, M. Śmiałek, D. Pestka, T. Stenzel, J. Jankowski, D. Mikulski, A. Koncicki
Polish Journal of Veterinary Sciences
 
6.
Growth performance, carcass composition, leg bones, and digestive system characteristics in Pekin duck broilers fed a diet diluted with whole wheat grain
Dariusz Kokoszyński, Mohamed Saleh, Zenon Bernacki, Tomasz Topoliński, Marek Andryszczyk, Mateusz Wirwicki, J. Plaizier
Canadian Journal of Animal Science
 
ISSN:1230-1388