TY - JOUR
T1 - Effect of dietary concentrate content on feed intake, feed efficiency, and meat quality of Holstein steers fattened in a hot environment
AU - Alqaisi, Othman
AU - Ali, Haytham
AU - Al-Abri, Mohammad
AU - Johnson, Eugene H.
AU - Al-Marzooqi, Waleed
N1 - Funding Information:
This work was funded by the Sultan Qaboos University Research Fund RF/AGR/ANVS/18/03. The authors wish to thank the agriculture research station and animal feed laboratory staff at SQU for their help during the experimental period. The authors would like to thank the anonymous reviewers for their valuable comments.
Publisher Copyright:
© 2021 Japanese Society of Animal Science
PY - 2021/1/1
Y1 - 2021/1/1
N2 - The objective of this study was to investigate the effect of feeding high and low concentrate diets on feed intake and feed efficiency, the morphological characteristics of the rumen papillae, and meat quality of Holstein steers fattened under hot climate conditions in Oman. Ten male Holstein calves, of 5 months of age, were selected for the experiment. The animals were fed concentrate and Rhodes grass hay and were divided into two groups of high concentrate (HC, n = 5) and low concentrate diets (LC, n = 5), in which their feed intake, weight gain, and feed efficiency were evaluated across three growing periods. Feed intake and efficiency and average daily gain (ADG) of the HC group were significantly greater than for the LC group and were affected by the diet (p <.01) and the period (p <.001). Across the fattening periods, ADG declined in both groups, with ADG improved by 35% for steers on the HC diet compared to steers on the LC diet. Carcass meat quality was not affected significantly by the dietary concentrate level. In conclusion, our results can be used to make improvements in feed efficiency of Holstein steers under hot climate conditions.
AB - The objective of this study was to investigate the effect of feeding high and low concentrate diets on feed intake and feed efficiency, the morphological characteristics of the rumen papillae, and meat quality of Holstein steers fattened under hot climate conditions in Oman. Ten male Holstein calves, of 5 months of age, were selected for the experiment. The animals were fed concentrate and Rhodes grass hay and were divided into two groups of high concentrate (HC, n = 5) and low concentrate diets (LC, n = 5), in which their feed intake, weight gain, and feed efficiency were evaluated across three growing periods. Feed intake and efficiency and average daily gain (ADG) of the HC group were significantly greater than for the LC group and were affected by the diet (p <.01) and the period (p <.001). Across the fattening periods, ADG declined in both groups, with ADG improved by 35% for steers on the HC diet compared to steers on the LC diet. Carcass meat quality was not affected significantly by the dietary concentrate level. In conclusion, our results can be used to make improvements in feed efficiency of Holstein steers under hot climate conditions.
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U2 - 10.1111/asj.13547
DO - 10.1111/asj.13547
M3 - Article
C2 - 33786940
AN - SCOPUS:85103682989
SN - 1344-3941
VL - 92
JO - Animal Science Journal
JF - Animal Science Journal
IS - 1
M1 - e13547
ER -