Performance and carcass characteristics of beef cattle fed dietscontaining silage from intercrops barley and annual ryegrass

Document Type

Article

Journal/Book Title/Conference

Animal Feed Science and Technology

Volume

99

Issue

1,4

Publisher

Elsevier

Publication Date

2002

First Page

1

Last Page

11

Abstract

A feeding trial was conducted to compare intercropped barley/annual ryegrass silage (B/RS) and barley silage (BS) on average daily gain (ADG), dry matter intake (DMI) and carcass characteristics of beef steers in a randomized complete block design experiment. Both B/RS and BS were prepared in plastic tube silos, ensiled for 168 days and then used in a feeding trial. Steers (n=120) were housed in individual pens and fed a backgrounding diet containing 350 g steam-rolled barley grain (SBG) and 600 g kg−1 B/RS or 600 g kg−1 BS and 50 g kg−1supplement until they weighed 445 kg, after which they were adapted to a finishing diet consisting of 860 g SBG and 100 g kg−1 B/RS or 100 g kg−1 BS and 40 g kg−1 supplement. Steer weight and back-fat depth (determined by ultra-sonography) were measured every 3 weeks. Steers were slaughtered when back-fat depth was greater than 7 mm and carcass data were obtained. Content of ADF in B/RS was lower (PPP

Comments

Anim. Feed Sci. and Tech. Vol. 99, Issue 1-4, p 1-11

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