Blood Urea Nitrogen as an Index of Feed Efficiency and Lean Growth Potential in Growing-Finishing Swine

Kwang Youn Whang, R. A. Easter

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Five experiments were conducted to evaluate blood urea nitrogen (BUN) as a potential index of feed efficiency (G/F) and lean growth in growing-finishing pigs. Exp. 1 was conducted to examine the relationship between feeding protocol and BUN values. Fasted-refed pigs exhibited BUN peaks 3 h post-prandially while those given ad libitum access to diet had inconsistent BUN patterns in 10 h blood sampling with an 1 h interval. In Exp. 2 and 3, it was revealed that the peak BUN values were negatively correlated (p<0.01) with G/F in both barrows and gilts at 20 kg body weight (BW) and 50 kg to 90 kg BW. In Exp. 4, it was found that BUN values between 55 kg and 70 kg BW, when lean gain is maximized, were best correlated with average daily lean gain (ADLG). In Exp. 5, 18 barrows and 21 gilts were used to examine the relationship between BUN values at 65 kg BW and ADLG from birth to market weight. The BUN values at 65 kg BW and ADLG were negatively correlated (p<0.01) in both genders. These experiments demonstrated that there was a correlation between peak BUN values, and G/F and ADLG under specific circumstances.

Original languageEnglish
Pages (from-to)811-816
Number of pages6
JournalAsian-Australasian Journal of Animal Sciences
Volume13
Issue number6
Publication statusPublished - 2000 Jun 1

Fingerprint

Blood Urea Nitrogen
urea nitrogen
finishing
Swine
feed conversion
swine
blood
Growth
Body Weight
body weight
barrows
gilts
blood sampling
Parturition
Diet
markets
Weights and Measures
gender

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

Blood Urea Nitrogen as an Index of Feed Efficiency and Lean Growth Potential in Growing-Finishing Swine. / Whang, Kwang Youn; Easter, R. A.

In: Asian-Australasian Journal of Animal Sciences, Vol. 13, No. 6, 01.06.2000, p. 811-816.

Research output: Contribution to journalArticle

@article{69e555ae44544c05865d0ce90ee180aa,
title = "Blood Urea Nitrogen as an Index of Feed Efficiency and Lean Growth Potential in Growing-Finishing Swine",
abstract = "Five experiments were conducted to evaluate blood urea nitrogen (BUN) as a potential index of feed efficiency (G/F) and lean growth in growing-finishing pigs. Exp. 1 was conducted to examine the relationship between feeding protocol and BUN values. Fasted-refed pigs exhibited BUN peaks 3 h post-prandially while those given ad libitum access to diet had inconsistent BUN patterns in 10 h blood sampling with an 1 h interval. In Exp. 2 and 3, it was revealed that the peak BUN values were negatively correlated (p<0.01) with G/F in both barrows and gilts at 20 kg body weight (BW) and 50 kg to 90 kg BW. In Exp. 4, it was found that BUN values between 55 kg and 70 kg BW, when lean gain is maximized, were best correlated with average daily lean gain (ADLG). In Exp. 5, 18 barrows and 21 gilts were used to examine the relationship between BUN values at 65 kg BW and ADLG from birth to market weight. The BUN values at 65 kg BW and ADLG were negatively correlated (p<0.01) in both genders. These experiments demonstrated that there was a correlation between peak BUN values, and G/F and ADLG under specific circumstances.",
keywords = "Blood Urea Nitrogen, Feed Efficiency, Lean Growth, Pigs",
author = "Whang, {Kwang Youn} and Easter, {R. A.}",
year = "2000",
month = "6",
day = "1",
language = "English",
volume = "13",
pages = "811--816",
journal = "Asian-Australasian Journal of Animal Sciences",
issn = "1011-2367",
publisher = "Asian-Australasian Association of Animal Production Societies",
number = "6",

}

TY - JOUR

T1 - Blood Urea Nitrogen as an Index of Feed Efficiency and Lean Growth Potential in Growing-Finishing Swine

AU - Whang, Kwang Youn

AU - Easter, R. A.

PY - 2000/6/1

Y1 - 2000/6/1

N2 - Five experiments were conducted to evaluate blood urea nitrogen (BUN) as a potential index of feed efficiency (G/F) and lean growth in growing-finishing pigs. Exp. 1 was conducted to examine the relationship between feeding protocol and BUN values. Fasted-refed pigs exhibited BUN peaks 3 h post-prandially while those given ad libitum access to diet had inconsistent BUN patterns in 10 h blood sampling with an 1 h interval. In Exp. 2 and 3, it was revealed that the peak BUN values were negatively correlated (p<0.01) with G/F in both barrows and gilts at 20 kg body weight (BW) and 50 kg to 90 kg BW. In Exp. 4, it was found that BUN values between 55 kg and 70 kg BW, when lean gain is maximized, were best correlated with average daily lean gain (ADLG). In Exp. 5, 18 barrows and 21 gilts were used to examine the relationship between BUN values at 65 kg BW and ADLG from birth to market weight. The BUN values at 65 kg BW and ADLG were negatively correlated (p<0.01) in both genders. These experiments demonstrated that there was a correlation between peak BUN values, and G/F and ADLG under specific circumstances.

AB - Five experiments were conducted to evaluate blood urea nitrogen (BUN) as a potential index of feed efficiency (G/F) and lean growth in growing-finishing pigs. Exp. 1 was conducted to examine the relationship between feeding protocol and BUN values. Fasted-refed pigs exhibited BUN peaks 3 h post-prandially while those given ad libitum access to diet had inconsistent BUN patterns in 10 h blood sampling with an 1 h interval. In Exp. 2 and 3, it was revealed that the peak BUN values were negatively correlated (p<0.01) with G/F in both barrows and gilts at 20 kg body weight (BW) and 50 kg to 90 kg BW. In Exp. 4, it was found that BUN values between 55 kg and 70 kg BW, when lean gain is maximized, were best correlated with average daily lean gain (ADLG). In Exp. 5, 18 barrows and 21 gilts were used to examine the relationship between BUN values at 65 kg BW and ADLG from birth to market weight. The BUN values at 65 kg BW and ADLG were negatively correlated (p<0.01) in both genders. These experiments demonstrated that there was a correlation between peak BUN values, and G/F and ADLG under specific circumstances.

KW - Blood Urea Nitrogen

KW - Feed Efficiency

KW - Lean Growth

KW - Pigs

UR - http://www.scopus.com/inward/record.url?scp=0034382233&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034382233&partnerID=8YFLogxK

M3 - Article

VL - 13

SP - 811

EP - 816

JO - Asian-Australasian Journal of Animal Sciences

JF - Asian-Australasian Journal of Animal Sciences

SN - 1011-2367

IS - 6

ER -