Influence of processing on the comparative feeding value of barley for feedlot cattle

Ra, Zinn

doi:10.2527/1993.7113

Cited by 77 publications

(64 citation statements)

References 17 publications

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“…Calculated barley NE m and NE g contents ranged from 8.94 to 9.51 and 5.98 to 6.55 MJ kg -1 OM, respectively. These values are in the range reported by NRC (1984NRC ( , 1986 and Zinn (1993), but less than those reported by Boss and Bowman (1996) when expressed on an OM basis.…”

Section: Trialcontrasting

confidence: 56%

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Variation in chemical composition and nutritional quality among barley cultivars for ruminants. 1. Steer finishing performance, diet digestibilities and carcass characteristics

Ovenell-Roy¹,

Nelson²,

Froseth³

et al. 1998

Can. J. Anim. Sci.

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. 1998. Variation in chemical composition and nutritional quality among barley cultivars for ruminants. 1. Steer finishing performance, diet digestibilities and carcass characteristics. Can. J. Anim. Sci. 78: 369-375. Inherent variability in chemical composition and nutritional value exists among barley (Hordeum vulgare L.) cultivars due to year grown, head morphology, growth habit and intended end use. Two trials were conducted to identify causal factors for variability among barley cultivars in animal performance, carcass characteristics, diet digestibility and digestible energy (DE) content. In feedlot trials, 144 large-frame beef steers (380 ± 1.6 kg in Trial 1, 372 ± 0.8 kg in Trial 2) were assigned within three weight blocks, eight to a pen, in a randomized complete block design and pens to treatments. Steers were fed a diet of 83% steam-rolled barley (Andre, Camelot, Clark, Cougbar, Harrington or Steptoe for 123 d in Trial 1; Boyer, Camelot, Clark, Harrington, Hesk or Steptoe for 119 d in Trial 2), 10% silage (wheat in Trial 1, oat in Trial 2), and 7% supplement on a dry matter (DM) basis. In Trial 1, Cougbar neutral detergent fiber (NDF) digestibility was significantly lower than Clark. Digestibility of other nutrients tended to be lowest for steers fed Cougbar and as a result, diet DE was lower (P < 0.05) for Cougbar than for Clark and Camelot. Diet DE and NDF digestibility were correlated (r = 0.69; P < 0.0001). Lower nutrient utilization by steers fed Cougbar resulted in lower performance. In Trial 2, steers fed Hesk had a poorer (P < 0.05) ratio of feed to gain than steers fed Camelot and Harrington and lower (P < 0.05) digestibility than steers fed Steptoe. In summary, data from these trials suggest that Cougbar and Steptoe are of lower nutritional value than other cultivars under the conditions of these studies. In these studies, digestibility of NDF was a major factor contributing to differences among cultivars. , que ce soit dû à l'année de production, à la morphologie de l'épi, au type de croissance ou à l'utilisation prévue du grain. Deux essais en parc d'engraissement ont été réalisés pour identifier les facteurs en cause de cette variabilité, relativement aux performances zootechniques, aux caractères de carcasse, à la digestibilité de l'aliment et au contenu en ED. Centquarante-quatre bouvillons à viande de grand format (380 ± 1,6 kg dans l'essai 1 et 372 ± 0,8 kg dans l'essai 2) étaient répartis selon trois classes de poids entre les traitements à raison de 8 animaux par parquet selon un dispositif en blocs aléatoires complets. Les bouvillons recevaient un régime composé, en m.s., de 83 % d'orge aplatie à la vapeur, soit les cultivars Andre, Camelot, Clark, Cougbar, Harrington ou Steptoe pendant 123 j dans l'essai 1 et Boyer, Camelot, Clark, Harrington, Hest ou Steptoe pendant 119 j dans l'essai 2, de 10 % d'ensilage (blé dans l'essai 1, avoine dans l'essai 2) et de 7 % de complément. Dans l'essai 1, la digestibilité de la FDN de Cougbar était significativement inférieure à celle de Clark. ...

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Section: Trialcontrasting

confidence: 56%

“…These values are in the range reported by Zinn (1993) and Boss and Bowman (1996), but greater than those reported by NRC (1984NRC ( , 1996 when expressed on an OM basis.…”

Section: Trialcontrasting

confidence: 44%

Variation in chemical composition and nutritional quality among barley cultivars for ruminants. 1. Steer finishing performance, diet digestibilities and carcass characteristics

Ovenell-Roy¹,

Nelson²,

Froseth³

et al. 1998

Can. J. Anim. Sci.

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“…However, an increasing level of SFT substitution for SFC decreased digestion of organic matter (OM) (linear component, P = .03) and ADF (linear component, P < .01), but tended to increase apparent N digestion (P = .09). Consistently SFC has shown lower total tract N digestion than SFW (Zinn 1992) and SFB (Zinn 1993). This latter effect is expected due to the increasing level of dietary N brought about by the replacement (NRC 1985).…”

Section: Trialsupporting

confidence: 50%

“…Using the replacement technique, the NE m value of SFT can be determined as follows: NE m SFT = 2.38-(NE m basal plus SFC diet-NE m basal plus SFT diet)/0.60, where 2.38 is the tabular (Zinn 1993), corn (Zinn et al 1998), and sorghum (Zinn et al 2008b). …”

Section: Trialmentioning

confidence: 99%

Comparative feeding value of steam-flaked triticale as a replacement for steam-flaked corn in finishing diets for feedlot cattle

Alvarez¹,

Gutiérrez²,

Salinas-Chavira

et al. 2015

Journal of Applied Animal Research

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Forty-eight crossbred steers (296 ± 5 kg) were used in a 155-day trial to compare the feeding value of steam-flaked triticale (SFT) with steam-flaked corn (SFC). Dietary treatments were: (1) basal finishing diet (BD), (2) 40% BD plus 60% SFT, and (3) 40% BD plus 60% SFC. Substitution of BD with SFT or SFC increased gain efficiency (P < .01), tended to increase average daily gain (ADG) (P = .07) and decrease dry matter intake (P = .11). The derived net energy for maintenance (NE m ) and net energy for gain (NE g ) values of SFT averaged 2.28 and 1.59 Mcal/kg, respectively. Four steers (442 ± 28 kg) were used in a 4 × 4 Latin square experiment to determine the effects of replacement of SFC with SFT on digestion. Treatments consisted of a SFC basal diet where SFT replaced 0, 32, 64, and 96% of SFC. Increasing level of SFT decreased total tract digestion of organic matter (OM) (linear component, P = .03), acid detergent fiber (ADF) (linear component, P < .01), and digestible energy (DE) (linear component, P < .01). The replacement DE value for SFT averaged 3.88 Mcal/kg, corresponding to NE m and NE g values of 2.18 and 1.50 Mcal/kg, respectively. It is concluded that the replacement net energy (NE) value of SFT is 92-96% that of SFC.ARTICLE HISTORY

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“…Zinn (1993) reported that cattle fed steam-flaked corn ate less and gained less than calves fed dry or steam-rolled barley. In most reports, however, feed intake and growth rate of feedlot cattle fed high grain barley diets were similar (Nichols and Weber 1988; Bradshaw et al 1992;Mathison and Engstrom 1995;Milner et al 1995;Owens et al 1995), or lower (Boss et al 1994;Boss and Bowman 1996) than for calves fed corn.…”

Section: Cattle Performancementioning

confidence: 99%

Effects of fibrolytic enzymes in corn or barley diets on performance and carcass characteristics of feedlot cattle

Beauchemin¹,

Jones²,

Rode³

et al. 1997

Can. J. Anim. Sci.

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, Rode, L. M. and Sewalt, V. J. H. 1997. Effects of fibrolytic enzymes in corn or barley diets on performance and carcass characteristics of feedlot cattle. Can. J. Anim. Sci. 77: 645-653. A study was conducted to establish whether fibrolytic enzyme feed additives influence performance of feedlot cattle fed high grain diets, and to compare the effects of feeding diets of barley or corn on performance and carcass characteristics. Crossbred beef steers (408 kg) were offered high concentrate diets (95.1%, dry matter basis), consisting mainly of barley and barley silage or corn and corn silage. Concentrates were treated with either no enzyme or one of two enzyme mixtures. Calves were slaughtered after a 103-to 145-d feeding period at an average weight of 570 kg and 10.8 mm of backfat. Barley-fed calves grew faster (1.45 vs. 1.29 kg d -1 ), ate more dry matter (DM; 9.79 vs. 9.31 kg d -1 ), and converted DM to gain (6.85 vs. 7.35 kg DM kg -1 gain) more efficiently compared with corn-fed calves (P < 0.001). Meat from barley-fed calves tended to be more highly marbled and was brighter in colour than meat from corn-fed calves, but diet had no effect on muscle score, rib eye area, or carcass leanness. Effect of enzymes differed for corn and barley diets; Enzyme 1, a preparation with higher xylanase activity than Enzyme 2, improved (P < 0.05) feed conversion ratio of barley diets by 11% over the finishing period, but enzyme treatments had no such effect for corn diets. Fibrolytic enzymes can be used to improve the digestibility of barley-based diets, but are not advantageous for corn diets. Further work is necessary to determine optimum formulation and level of application of enzyme preparations for use in barley diets. Further study of the differences in carcass characteristics of cattle fed barley or corn diets is warranted to substantiate the trends observed on this limited group of animals. Par comparaison avec les animaux engraissés au maïs, les animaux nourris à l'orge l'emportaient (P < 0,001) par le GMQ (1,45 contre 1,29 kg), par le taux de consommation de matière sèche (m.s.) 9,31 kg et par l'indice de conversion (6,85 contre 7,35 kg m.s. kg -1 gain). La viande des veaux nourris à l'orge était généralement plus persillée et sa couleur était plus vive que chez les veaux nourris au maïs, les régimes n'ayant par ailleurs pas d'effets sur l'indice musculaire et sur la surface de la noix de côte ni sur la proportion de maigre dans la carcasse. L'effet des enzymes différaient selon le type de céréales utilisé : la préparation 1 possédant une plus forte activité de la xylanase que la préparation 2, améliorait de 11% (P < 0,05) l'indice de conversion des régimes à base d'orge durant la période de finition, mais un tel effet ne s'observait pas avec le régime à base de maïs. L'enzyme fibrolytique peut être utilisée pour améliorer la digestibilité des régimes à base d'orge, mais elle ne présente aucun avantage dans le cas des régimes à base de maïs. Il reste encore à déterminer la formulation et le niveau d'incorporation opt...

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Influence of processing on the comparative feeding value of barley for feedlot cattle

Cited by 77 publications

References 17 publications

Variation in chemical composition and nutritional quality among barley cultivars for ruminants. 1. Steer finishing performance, diet digestibilities and carcass characteristics

Variation in chemical composition and nutritional quality among barley cultivars for ruminants. 1. Steer finishing performance, diet digestibilities and carcass characteristics

Comparative feeding value of steam-flaked triticale as a replacement for steam-flaked corn in finishing diets for feedlot cattle

Effects of fibrolytic enzymes in corn or barley diets on performance and carcass characteristics of feedlot cattle

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