Performance of Omani goats fed diets containing various metabolizable energy densities

O. Mahgoub, C. D. Lu, M. S. Hameed, A. Richie, A. S. Al-Halhali, K. Annamalai

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

A feeding trial was carried out to study feedlot performance of Omani Batina and Dhofari goats fed diets containing low, medium and high metabolizable energy (ME) levels. Animals were individually fed diets containing three levels of ME (8.81, 9.95 or 11.22 M/J kg DM) for 140 d. Feed intake as percentage of DM in body weight (BW) and metabolic body weight (BW0.75) (MBW) in Omani goats of various breed/ME level combinations ranged between 2.8-3.2 and 5.8-6.5, respectively with no significant effects of diet, breed, or their interactions. There was a significant increasing body weight gain pattern with increasing ME density. Batina and Dhofari goats on highest ME gained more daily weight (96 and 53 g/d) thus reaching higher BW (27.7 and 21.7 kg) at week 20 of experiment than goats on medium (80 and 53 g/d; 25 g and 21.6 kg) and lower (50 and 46 g/d; 21.4 and 20.7 kg) ME diets, respectively. In general, Batina goats grew faster and reached higher BW than Dhofari. For all ME densities, Batina goats had better feed conversion ratio (FCR) than Dhofari. Increasing ME levels in the diet of goats increased carcass weight, empty body weight (EBW), dressing out percentage, chemical fat but decreased crude protein in the carcasses. ME requirements were calculated by regressing daily gain versus energy intake. This study indicated that raising Omani goats under feedlot systems on high ME diets or supplementing free grazing stock with energy sources will improve their growth rates and carcass composition.

Original languageEnglish
Pages (from-to)175-180
Number of pages6
JournalSmall Ruminant Research
Volume58
Issue number2
DOIs
Publication statusPublished - May 2005

Fingerprint

energy density
Goats
metabolizable energy
goats
Diet
Body Weight
diet
body weight
feedlots
Weights and Measures
Bandages
Energy Intake
goat breeds
Weight Gain
carcass composition
carcass weight
energy requirements
Fats
energy intake
feed conversion

Keywords

  • Batina
  • Dhofari
  • Energy density
  • Feed conversion
  • Growth
  • Omani goats

ASJC Scopus subject areas

  • Animal Science and Zoology
  • veterinary(all)

Cite this

Performance of Omani goats fed diets containing various metabolizable energy densities. / Mahgoub, O.; Lu, C. D.; Hameed, M. S.; Richie, A.; Al-Halhali, A. S.; Annamalai, K.

In: Small Ruminant Research, Vol. 58, No. 2, 05.2005, p. 175-180.

Research output: Contribution to journalArticle

Mahgoub, O. ; Lu, C. D. ; Hameed, M. S. ; Richie, A. ; Al-Halhali, A. S. ; Annamalai, K. / Performance of Omani goats fed diets containing various metabolizable energy densities. In: Small Ruminant Research. 2005 ; Vol. 58, No. 2. pp. 175-180.
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