PMID- 26944967
OWN - NLM
STAT- MEDLINE
DCOM- 20170406
LR  - 20200220
IS  - 1525-3171 (Electronic)
IS  - 0032-5791 (Linking)
VI  - 95
IP  - 6
DP  - 2016 Jun 1
TI  - Dietary threonine response of Pekin ducks from hatch to 14 d of age based on 
      performance, serology, and intestinal mucin secretion.
PG  - 1348-55
LID - 10.3382/ps/pew032 [doi]
AB  - Two experiments were conducted to determine the dietary threonine (Thr) 
      requirement of Pekin ducks from hatch to 14 d of age. In experiment 1, practical 
      corn-soybean meal diets were formulated to contain 0.78, 0.84, 0.90, 0.96, and 
      1.02% Thr (0.74, 0.83, 0.88, 0.92, and 1.00% Thr on an analyzed basis). In 
      experiment 2, corn-soybean meal diets supplemented with 11 crystalline amino 
      acids were formulated to contain 0.60, 0.70, 0.80, 0.90, 1.00, and 1.10% Thr 
      (0.60, 0.75, 0.89, 0.95, 1.01, and 1.09% Thr on an analyzed basis). In both 
      experiments, diets were fed to 8 replicate cages with 6 male ducks per cage. Body 
      weight and feed intake from each cage were recorded weekly. At 14 d of age, 
      breast meat, ileal digesta, and serum were collected to determine breast meat 
      yield, mucin secretion, and serology parameters. In both studies, the estimated 
      Thr requirement (expressed as % dietary Thr basis) for 14 d BW and BW gain (BWG) 
      by quadratic broken-line (QBL) regression were similar, which were 0.87 and 
      0.86%, respectively. Additional measures in both experiments resulted in Thr 
      requirements via QBL regression in rank order of crude mucin secretion < breast 
      meat yield < serum immune activity. Summing up the estimates from both studies, 
      the Thr requirement ranged from a low of 0.81% to maximize feed intake (FI) to a 
      high of 1.00% to maximize serum Rb L100 by QBL regression. Correspondingly, the 
      Thr requirement varied between a low of 0.90% to maximize crude mucin secretion 
      on a dry matter intake (DMI) basis and a high of 0.98% to maximize feed-to-gain 
      when using quadratic regression.
CI  - (c) 2016 Poultry Science Association Inc.
FAU - Zhang, Q
AU  - Zhang Q
AD  - Department of Animal Sciences, Purdue University, West Lafayette, IN 47907.
FAU - Zeng, Q F
AU  - Zeng QF
AD  - Department of Animal Sciences, Purdue University, West Lafayette, IN 47907 
      Institute of Animal Nutrition, Sichuan Agricultural University, Ya'an, Sichuan 
      Province, 625014, PR China.
FAU - Cotter, P
AU  - Cotter P
AD  - Cotter Laboratory, Arlington, MA 02476.
FAU - Applegate, T J
AU  - Applegate TJ
AD  - Department of Animal Sciences, Purdue University, West Lafayette, IN 47907 
      applegt@uga.edu.
LA  - eng
PT  - Journal Article
DEP - 20160304
PL  - England
TA  - Poult Sci
JT  - Poultry science
JID - 0401150
RN  - 0 (Avian Proteins)
RN  - 0 (Mucins)
RN  - 2ZD004190S (Threonine)
SB  - IM
MH  - Animal Feed/analysis
MH  - Animal Nutritional Physiological Phenomena/drug effects
MH  - Animals
MH  - Avian Proteins/genetics/*metabolism
MH  - Body Composition/drug effects
MH  - Diet/veterinary
MH  - Dietary Supplements/analysis
MH  - Digestion/drug effects
MH  - Dose-Response Relationship, Drug
MH  - Ducks/genetics/growth & development/*physiology
MH  - Gene Expression Regulation
MH  - Intestinal Mucosa/metabolism
MH  - Male
MH  - Mucins/genetics/*metabolism
MH  - Nutritional Requirements
MH  - Random Allocation
MH  - Threonine/administration & dosage/*metabolism
OTO - NOTNLM
OT  - Pekin duck
OT  - growth performance
OT  - mucin
OT  - serology
OT  - threonine
EDAT- 2016/03/06 06:00
MHDA- 2017/04/07 06:00
CRDT- 2016/03/06 06:00
PHST- 2015/12/22 00:00 [accepted]
PHST- 2015/09/09 00:00 [received]
PHST- 2016/03/06 06:00 [entrez]
PHST- 2016/03/06 06:00 [pubmed]
PHST- 2017/04/07 06:00 [medline]
AID - S0032-5791(19)32182-0 [pii]
AID - 10.3382/ps/pew032 [doi]
PST - ppublish
SO  - Poult Sci. 2016 Jun 1;95(6):1348-55. doi: 10.3382/ps/pew032. Epub 2016 Mar 4.