PMID- 29767103
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201001
IS  - 2405-6383 (Electronic)
IS  - 2405-6545 (Print)
IS  - 2405-6383 (Linking)
VI  - 3
IP  - 2
DP  - 2017 Jun
TI  - Comparative methane estimation from cattle based on total CO(2) production using 
      different techniques.
PG  - 175-179
LID - 10.1016/j.aninu.2017.04.004 [doi]
AB  - The objective of this study was to compare the precision of CH(4) estimates using 
      calculated CO(2 (HP)) by the CO(2) method (CO(2)T) and measured CO(2) in the 
      respiration chamber (CO(2)R). The CO(2)R and CO(2)T study was conducted as a 
      3 x 3 Latin square design where 3 Dexter heifers were allocated to metabolic 
      cages for 3 periods. Each period consisted of 2 weeks of adaptation followed by 1 
      week of measurement with the CO(2)R and CO(2)T. The average body weight of the 
      heifer was 226 +/- 11 kg (means +/- SD). They were fed a total mixed ration, twice 
      daily, with 1 of 3 supplements: wheat (W), molasses (M), or molasses mixed with 
      sodium bicarbonate (Mbic). The dry mater intake (DMI; kg/day) was significantly 
      greater (P < 0.001) in the metabolic cage compared with that in the respiration 
      chamber. The daily CH(4) (L/day) emission was strongly correlated (r = 0.78) 
      between CO(2)T and CO(2)R. The daily CH(4) (L/kg DMI) emission by the CO(2)T was 
      in the same magnitude as by the CO(2)R. The measured CO(2) (L/day) production in 
      the respiration chamber was not different (P = 0.39) from the calculated CO(2) 
      production using the CO(2)T. This result concludes a reasonable accuracy and 
      precision of CH(4) estimation by the CO(2)T compared with the CO(2)R.
FAU - Haque, Md N
AU  - Haque MN
AD  - Department of Large Animal Sciences, Faculty of Health and Medical Sciences, 
      University of Copenhagen, Frederiksberg C 1870, Denmark.
FAU - Hansen, Hanne H
AU  - Hansen HH
AD  - Department of Large Animal Sciences, Faculty of Health and Medical Sciences, 
      University of Copenhagen, Frederiksberg C 1870, Denmark.
FAU - Storm, Ida M L D
AU  - Storm IMLD
AD  - Department of Large Animal Sciences, Faculty of Health and Medical Sciences, 
      University of Copenhagen, Frederiksberg C 1870, Denmark.
FAU - Madsen, Jorgen
AU  - Madsen J
AD  - Department of Large Animal Sciences, Faculty of Health and Medical Sciences, 
      University of Copenhagen, Frederiksberg C 1870, Denmark.
LA  - eng
PT  - Journal Article
DEP - 20170412
PL  - China
TA  - Anim Nutr
JT  - Animal nutrition (Zhongguo xu mu shou yi xue hui)
JID - 101717655
PMC - PMC5941112
OTO - NOTNLM
OT  - Carbon dioxide
OT  - Measurement
OT  - Methane
OT  - Precision
OT  - Respiration chamber
EDAT- 2018/05/17 06:00
MHDA- 2018/05/17 06:01
PMCR- 2017/04/12
CRDT- 2018/05/17 06:00
PHST- 2016/10/11 00:00 [received]
PHST- 2017/04/01 00:00 [revised]
PHST- 2017/04/03 00:00 [accepted]
PHST- 2018/05/17 06:00 [entrez]
PHST- 2018/05/17 06:00 [pubmed]
PHST- 2018/05/17 06:01 [medline]
PHST- 2017/04/12 00:00 [pmc-release]
AID - S2405-6545(16)30191-3 [pii]
AID - 10.1016/j.aninu.2017.04.004 [doi]
PST - ppublish
SO  - Anim Nutr. 2017 Jun;3(2):175-179. doi: 10.1016/j.aninu.2017.04.004. Epub 2017 Apr 
      12.