The Influence of Feed Energy Level on Growth and Carcass Traits in Bulls of Two Breed Types

Price, M. A.; Butson, Sarah; Makarechian, M.

doi:10.4141/cjas84-038

Cited by 13 publications

(8 citation statements)

References 7 publications

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“…The differences in the growth traits of the bulls on the different diets were reflections of the digestible energy intake. This is in agreement with the results obtained in other studies (Price et al, 1984;Houseknecht et al, 1988), that growth rate increases as dietary energy intake increases. Although the change in height of bulls on Low diet was lower (Pe0.05) than that of bulls on either High or Choice diet (Table 2), differences in monthly height measurements were not signifcant until April (Fig.…”

Section: Ipsupporting

confidence: 83%

The Effect of Level of Concentrate in Feedlot Diets on Growth, Health and Carcass Characteristics of Bulls

Makarechian

Arthur

Liu

et al. 1995

Journal of Applied Animal Research

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Section: Ipsupporting

confidence: 83%

The Effect of Level of Concentrate in Feedlot Diets on Growth, Health and Carcass Characteristics of Bulls

Makarechian

Arthur

Liu

et al. 1995

Journal of Applied Animal Research

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“…It is well established that cattle finished on high-energy rations will have lighter carcasses (at a constant carcass fat depth), fatter carcasses (at a constant carcass weight), higher levels of marbling and lower cutability than forage-fed cattle (Price et al 1984;Old and Garret 1987;Solomon and Elsasser 1991;Priyanto et al 1993). However, few studies have examined the effects of prolonged backgrounding on pasture on carcass composition of steers that have been finished on a high-energy ration.…”

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confidence: 99%

Effect of prolonged backgrounding on growth performance and carcass composition of crossbred beef steers

Vaage¹,

McCartney²,

McKinnon³

et al. 1998

Can. J. Anim. Sci.

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. Effect of prolonged backgrounding on growth performance and carcass composition of crossbred beef steers. Can. J. Anim. Sci. 78: 359-367. One hundred and twenty crossbred steers were fed to slaughter on a high-energy finishing ration (GRAIN), or given barley silage during the winter, grazed 90 d, and then finished on the high-energy ration (FORAGE) to determine the effect of prolonged backgrounding on growth performance and carcass composition. The steers were separated into two weight groups (light vs. heavy, 346 ± 19 vs. 394 ± 16 kg; P < 0.01) and allocated to a feeding program across 12 pens according to a 2 × 2 factorial completely randomized design. The steers were slaughtered by pen at an average USFAT depth of 8 mm. Compared with steers on the GRAIN program, FORAGE steers had lower average daily gains (1.03 vs. 1.62 kg d -1 ; P < 0.01), took 119 d longer to finish (P < 0.01) and finished at heavier live (626 vs. 578 kg; P < 0.01), and carcass (342 vs. 306 kg; P < 0.01) weights. Heavy animals grew faster (1.37 vs. 1.28 kg d -1 , P < 0.01), and were slaughtered 15 d earlier (P < 0.06) at heavier weights (626 vs. 578 kg; P < 0.01) than light animals. Light animals had smaller l. thoracis area than heavy animals (86.8 vs. 93.8 cm 2 ; P < 0.01). The proportion of carcasses with slight or small marbling was greater (P < 0.01) for light steers, particularly those with a higher proportion of "British" breeding. Prolonged backgrounding with forages produced larger carcasses without adversely affecting composition. préfinition prolongée sur la croissance et sur la composition de la carcasse. Les animaux étaient divisés par groupe de poids : léger 346 ± 19 et lourd 394 ± 16 kg (P < 0,01) et répartis en 12 parquets selon un dispositif factoriel 2 × 2 en blocs aléa-toires complets. L'abattage par parquet se faisait lorsque l'épaisseur du lard dorsal à la douzième côte, mesuré par ultrasons était de 8 mm. Par rapport à ceux du régime GRAIN, les bouvillons de longue préfinition manifestaient un GMQ moindre (1,03 contre 1,62 kg j -1 ), prenaient 119 jours de plus à engraisser (P < 0,01) et atteignaient un poids vif et un poids de carcasse plus élevés à l'abattage, soit respectivement 626 contre 578 kg et 342 contre 306 kg, P < 0,01. Les sujets de type lourd croissaient plus rapidement (1,37 contre 1,28 kg j -1 , P < 0,01) et étaient abattus 15 jours plus tôt (P < 0,06) à un poids plus élevé (626 contre 578 kg, P < 0,01) que ceux de type léger. Ces derniers révélaient une plus petite surface de la noix de côte (longissimus thoracis) que ceux de type lourd, soit 86,8 contre 93,8 cm 2 (P < 0,01). La proportion des carcasses à persillé léger ou faible était plus grande (P < 0,01) chez les bouvillons de type léger, surtout chez ceux à forte ascendance de race britannique. La préfinition prolongée aux fourrages grossiers donnait lieu à des carcasses plus développées, sans pour autant nuire à leur composition.Mots clés: Préfinition prolongée, bouvillon de type à viande, composition de la carcasse Backgrounding involves raisin...

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“…Table 2) and concentrate mixture of mostly brans (81 %) without grain (Table 1). Geay and Robelin, (1979), and Price et al (1984) showed that diets influence fat deposition independent of the effects of LW, causing cattle fed different diets to vary in carcass fatness even at similar degrees of maturity. The tendency for fat deposition in cattle with tropical inheritance was found lower than that with the temperate ones (Crouse et al,1989 …”

Section: Digestibility Of Nutrientsmentioning

confidence: 99%

Effect of age on feed efficiency and carcass yield characteristics of indigenous bull

Sultana

Huque

Rahman

et al. 2017

Bang. J. Anim. Sci.

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The Influence of Feed Energy Level on Growth and Carcass Traits in Bulls of Two Breed Types

Abstract: For personal use only.

Cited by 13 publications

References 7 publications

The Effect of Level of Concentrate in Feedlot Diets on Growth, Health and Carcass Characteristics of Bulls

The Effect of Level of Concentrate in Feedlot Diets on Growth, Health and Carcass Characteristics of Bulls

Effect of prolonged backgrounding on growth performance and carcass composition of crossbred beef steers

Effect of age on feed efficiency and carcass yield characteristics of indigenous bull

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