+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Variability in metabolic plus endogenous energy losses of adult cockerels and in the true metabolizable energy values and rates of passage of dehydrated alfalfa



Variability in metabolic plus endogenous energy losses of adult cockerels and in the true metabolizable energy values and rates of passage of dehydrated alfalfa



Poultry Science 59(6): 1275-1279



An experiment with 4 groups of 12 adult cockerels allowed true metabolizable energy (TME) to be estimated in several ways. The birds were alternately fed 1 or 2 samples of dehydrated alfalfa meal or starved to serve as a negative control for the measurement of metabolic and endogenous energy loss (FEm + UEe). Each bird was fed twice and served as a control twice. The correction for FEm + UEe could be estimated from the same bird at a different period, or from a different bird at the same period. The Fem + UEe was largely characteristic of the bird. The correlation of the 1st observation with the 2nd observation for each bird was 0.744 (44 DF). Variation in body weight did little to explain variation in FEm + UEe (r [correlation coefficient] = 0.69, 90 DF). The most precise TME estimates were obtained by using each bird as its own negative control. A group mean value for FEm + UEe was somewhat inferior but the decrease in precision may be offset by reduced time and cost. The TME values provided additional evidence that the FEm + UEe output is characteristic of the bird. Although some birds consistently voided alfalfa residues more slowly than other birds the pattern was not sufficiently consistent between birds to be significant.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 001030087

Download citation: RISBibTeXText

PMID: 7402993

DOI: 10.3382/ps.0591275


Related references

Metabolic plus endogenous energy and nitrogen losses of adult cockerels: the correction used in the bioassay for true metabolizable energy. Poultry Science 60(4): 805-811, 1981

The effects of feed input and excreta collection time on estimates of metabolic plus endogenous energy losses in the bioassay for true metabolizable energy. Poultry Science 62(1): 68-76, 1983

The effect of cold pelleting on the true metabolizable energy values of cereal grains fed to adult roosters and a comparison of observed with predicted metabolizable energy values. Poultry Science 55(3): 970-974, 1976

The effect of fasting birds period on the metabolic plus endogenous energy losses for true metabolisable energy values of feedstuffs. Pakistan Journal of Biological Sciences 8(10): 1392-1396, 2005

The effect of environmental temperature on true metabolizable energy, N-corrected true metabolizable energy and fecal plus urinary energy values of fasted birds. Journal of Agricultural Science and Technology 1(1): 29-34, 1992

The Effect of the Duration of the Excreta Collection Period on the True Metabolizable Energy Values of Feedingstuffs with Slow Rates of Passage. Poultry Science 58(4): 896-899, 1979

The effect of the duration of the excreta collection period on the true metabolizable energy values of feedstuffs with slow rates of passage. Poultry Science 58(4): 896-899, 1979

Endogenous energy losses of fed vs. fasted roosters in true metabolizable energy assays. Poultry Science 60(7): 1601, 1981

Influence of level of feed input and procedure on metabolizable energy and endogenous energy loss (EEL) with adult cockerels. British Poultry Science 43(5 & Supplement): 696-704, 2002

Effect of inorganic matter granite grit on endogenous energy and true metabolizable energy values. Poultry Science 61(7): 1417-1418, 1982

Endogenous energy a cause of biased true metabolizable energy values. South African Journal of Animal Science 11(3): 269-272, 1981

Gut clearance and true metabolizable energy value of dehydrated alfalfa supplemented with sodium chloride. Poultry Science 59(4): 939-940, 1980

The effects of endogenous energy, type of diet, and addition of bile salts on true metabolizable energy values in young chicks. Poultry Science 61(11): 2218-2223, 1982

Digestible, metabolizable and net energy values of corn grain and dehydrated alfalfa in sheep. Journal of Animal Science 41(6): 1752-1758, 1975

Repeatability of true metabolizable energy versus nitrogen corrected true metabolizable energy values. Poultry Science 65(2): 352-354, 1986