PMID- 3447142
OWN - NLM
STAT- MEDLINE
DCOM- 19880513
LR  - 20200307
IS  - 0032-5791 (Print)
IS  - 0032-5791 (Linking)
VI  - 66
IP  - 11
DP  - 1987 Nov
TI  - Characterization of different hematological responses during molts induced by 
      zinc or fasting.
PG  - 1841-5
AB  - Single Comb White Leghorn hens were induced to molt by complete fasting for 11 
      days (FAST) or feeding a layer ration that contained 20,000 ppm zinc as zinc 
      oxide for 11 days (ZINC). In both cases hens lost approximately 30% of their 
      initial body weight. A control (CON) group was maintained. At 4, 8, 12, 18, and 
      42 days after initiation of the treatments, total erythrocyte numbers (TRBC), 
      percent packed cell volume (PCV), mean corpuscular volume, hemoglobin (Hb), mean 
      corpuscular hemoglobin (MCHb), and mean corpuscular hemoglobin concentration 
      (MCHC) were determined. Erythrocytes were characterized as reticulocytes, 
      intermediate Stage VII erythrocytes, or mature Stage VIII erythrocytes. The FAST 
      hens exhibited significantly increased PCV through 18 days, which was not 
      exhibited by ZINC hens. The FAST treatment increased TRBC on Days 8 and 12 and 
      decreased TRBC on Day 42 while ZINC decreased TRBC on Day 4 and increased TRBC on 
      Day 12. The FAST hens exhibited decreased Hb on Day 42, as reproduction resumed. 
      Both ZINC and FAST hens exhibited decreased MCHb and MCHC on Day 12. Percentages 
      of reticulocytes were decreased at Day 4 by FAST and increased at Days 8 and 18 
      by ZINC. Stage VII erythrocytes were decreased on Days 4 and 12 in FAST hens 
      whereas ZINC hens exhibited a decrease on Day 4 and an increase on Days 8 and 18. 
      Concomitantly, FAST hens exhibited an increase in Stage VIII erythrocytes on Days 
      4 and 12, whereas an increase on Day 4 and decreases on Days 8 and 18 were 
      observed in ZINC hens.(ABSTRACT TRUNCATED AT 250 WORDS)
FAU - Berry, W D
AU  - Berry WD
AD  - Department of Poultry Science, North Carolina State University, Raleigh 
      27695-7608.
FAU - Gildersleeve, R P
AU  - Gildersleeve RP
FAU - Brake, J
AU  - Brake J
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - England
TA  - Poult Sci
JT  - Poultry science
JID - 0401150
RN  - 0 (Hemoglobins)
RN  - J41CSQ7QDS (Zinc)
RN  - SOI2LOH54Z (Zinc Oxide)
SB  - IM
MH  - Animals
MH  - Chickens/*blood/physiology
MH  - Erythrocyte Count/veterinary
MH  - Erythrocyte Indices/veterinary
MH  - *Fasting
MH  - Feathers/drug effects/*physiology
MH  - Female
MH  - Hematocrit/veterinary
MH  - Hemoglobins/analysis
MH  - Zinc/*pharmacology
MH  - Zinc Oxide/*pharmacology
EDAT- 1987/11/01 00:00
MHDA- 1987/11/01 00:01
CRDT- 1987/11/01 00:00
PHST- 1987/11/01 00:00 [pubmed]
PHST- 1987/11/01 00:01 [medline]
PHST- 1987/11/01 00:00 [entrez]
AID - S0032-5791(19)56398-2 [pii]
AID - 10.3382/ps.0661841 [doi]
PST - ppublish
SO  - Poult Sci. 1987 Nov;66(11):1841-5. doi: 10.3382/ps.0661841.