PMID- 32638680
OWN - NLM
STAT- MEDLINE
DCOM- 20201028
LR  - 20201028
IS  - 1751-732X (Electronic)
IS  - 1751-7311 (Linking)
VI  - 14
IP  - S2
DP  - 2020 Aug
TI  - Rate of feed passage in Japanese quail.
PG  - s267-s274
LID - 10.1017/S1751731120001457 [doi]
AB  - The rate of passage (ROP) in the gastrointestinal tract (GIT) influences the 
      exposure time of food to the digestion and absorption processes. Consequently, 
      ROP affects the efficiency of nutrient utilization and energy from the diet. This 
      study aimed to determine the physiological parameters that characterize the 
      digestive response, such as first appearance time (FAT), ROP, mean retention time 
      (MRT) and transit time (TT) in adult Japanese quail (Coturnix coturnix japonica), 
      and to evaluate the effects of sex, apparent metabolizable energy corrected for 
      nitrogen balance (AMEn) content in the diet and different types of markers on 
      these parameters. In the first trial, we investigated the effects of sex and AMEn 
      level (high- and low-energy diet) on the FAT parameter. Thirty-two male and 32 
      female Japanese quail were randomly allocated to 8 battery cages and assigned to 
      4 treatments in a 2 x 2 factorial design with 4 replicates of 4 birds for each 
      treatment. To determine the FAT, ferric oxide (1%) was added to the diet, and the 
      excreta of the quail was monitored until the first appearance of the marker. The 
      results indicated significant differences (P < 0.05) in the FAT between males 
      (100 min) and females (56 min), regardless of the AMEn content. In the second 
      trial, thirty-two 32-week-old female Japanese quail in the laying phase were 
      assigned to four treatments in a 2 x 2 factorial design, in which the main 
      independent variables were type of marker (Cr or Ti) and AMEn level (high- and 
      low-energy diets). In order to determine ROP (ET1%), MRT and TT (ET100%), the 
      markers (0.5%: Cr2O3 and 0.5%: TiO2) were added to the diets, and the excreta 
      were collected for 750 min. The excretion times for 1% (ET1%), 25% (ET25%), 50% 
      (ET50%), 75% (ET75%) and 100% (ET100%) were estimated using cumulative excretion 
      curves. No effect was detected for the AMEn level (P > 0.05); however, the effect 
      of different marker types was significant (P < 0.05). This difference increased 
      with time and ET100% was estimated to occur at 59 min. The ROP was estimated to 
      be 68 min. The TT was estimated to be 540 min using Cr and 599 min using Ti, with 
      an average MRT value of 0930 h. Taken together, our findings support the 
      hypothesis that Japanese quail digestion through the GIT can be dynamic and 
      differ based on sex or marker type.
FAU - Nobrega, I P T
AU  - Nobrega IPT
AUID- ORCID: 0000-0002-3503-5153
AD  - Departament of Animal Science, School of Agricultural and Veterinary Sciences, 
      Sao Paulo State University (UNESP), Jaboticabal14883-900, Brazil.
FAU - Nogueira, H S
AU  - Nogueira HS
AD  - Departament of Animal Science, School of Agricultural and Veterinary Sciences, 
      Sao Paulo State University (UNESP), Jaboticabal14883-900, Brazil.
FAU - Lima, M B
AU  - Lima MB
AD  - Departament of Animal Science, School of Agricultural and Veterinary Sciences, 
      Sao Paulo State University (UNESP), Jaboticabal14883-900, Brazil.
FAU - Sakomura, N K
AU  - Sakomura NK
AD  - Departament of Animal Science, School of Agricultural and Veterinary Sciences, 
      Sao Paulo State University (UNESP), Jaboticabal14883-900, Brazil.
FAU - Peruzzi, N J
AU  - Peruzzi NJ
AD  - Departament of Animal Science, School of Agricultural and Veterinary Sciences, 
      Sao Paulo State University (UNESP), Jaboticabal14883-900, Brazil.
FAU - Artoni, S M B
AU  - Artoni SMB
AD  - Departament of Animal Science, School of Agricultural and Veterinary Sciences, 
      Sao Paulo State University (UNESP), Jaboticabal14883-900, Brazil.
FAU - Suzuki, R M
AU  - Suzuki RM
AD  - Departament of Animal Science, School of Agricultural and Veterinary Sciences, 
      Sao Paulo State University (UNESP), Jaboticabal14883-900, Brazil.
FAU - Silva, E P
AU  - Silva EP
AD  - Departament of Animal Science, School of Agricultural and Veterinary Sciences, 
      Sao Paulo State University (UNESP), Jaboticabal14883-900, Brazil.
LA  - eng
PT  - Journal Article
DEP - 20200623
PL  - England
TA  - Animal
JT  - Animal : an international journal of animal bioscience
JID - 101303270
SB  - IM
MH  - *Animal Feed/analysis
MH  - *Animal Nutritional Physiological Phenomena
MH  - Animals
MH  - *Coturnix
MH  - Diet/veterinary
MH  - Female
MH  - Male
OTO - NOTNLM
OT  - coturnix quail
OT  - markers
OT  - mean retention time
OT  - metabolizable energy
OT  - passage rate
EDAT- 2020/07/09 06:00
MHDA- 2020/10/29 06:00
CRDT- 2020/07/09 06:00
PHST- 2020/07/09 06:00 [pubmed]
PHST- 2020/10/29 06:00 [medline]
PHST- 2020/07/09 06:00 [entrez]
AID - S1751731120001457 [pii]
AID - 10.1017/S1751731120001457 [doi]
PST - ppublish
SO  - Animal. 2020 Aug;14(S2):s267-s274. doi: 10.1017/S1751731120001457. Epub 2020 Jun 
      23.