Indian Journal of Animal Research
SCOPUSWeb of Science
  • Year: 2022
  • Volume: 56
  • Issue: 5

Effects of Rumen-protected Glucose Supplementation on Growth Performance, Body Measurements and Plasma Biochemical Indices of Fattening Chinese Simmental Bulls

  • Author:
  • Li Lingyan1,2,#, Xianchao Guan1,#, Hongliang Wang3, Fuzhong Zhao3, Qu Yongli1,2,
  • Total Page Count: 6
  • Page Number: 563 to 568

1College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, 163319, P.R. China.

2Heilongjiang Key Laboratory of Efficient Utilization of Feed Resources and Nutrition Manipulation in Cold Region, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, 163319, P.R. China.

3Animal Husbandry and Veterinary Institute, Heilongjiang Academy of Land Reclamation Sciences, Harbin, Heilongjiang, P.R. China.

*Corresponding Author: Yongli Qu and Lingyan Li, College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, 163319, P.R. China, Email: ylqu007@126.com

# These authors contributed equally to this work.

Abstract

The objective of the study was to investigate the effects of rumen-protected glucose (RPG) supplementation on growth performance, body measurements and plasma biochemical indices of Simmental bulls in Northeast China during the fattening period.

A 90 d feedlot study was conducted using thirty Simmental bulls (body weight= 444.3±26.9 kg). Bulls were randomly allocated into three groups to receive a basal total mixed ration (TMR) supplemented daily with 0 g RPG (control, Con), 100 g RPG (RPG100) or 300 g RPG (RPG300) per bull. Growth performance, body measurements and plasma biochemical indices were evaluated.

The greater ADG (P<0.05) and lower feed efficiency value (P<0.01) were found for bulls fed RPG compared to CON diet. Bulls fed RPG had increased body height and chest girth growth compared with CON diet (P<0.05). The plasma glucose (GLC) concentration was higher for bulls fed RPG300 diet than CON and RPG100 diets (P<0.01). Nonestesterified fatty acid (NEFA) concentration was lower for RPG compared with CON treatment (P<0.05). Our analysis suggests that a daily supplement of 300 g RPG is an effective way to increase the body's total GLC provision and thus improve the growth performance of Simmental bulls during the fattening period.

Keywords

Body measurements, Chinese Simmental bulls, Growth performance, Plasma biochemical indices, Rumen-protected glucose