Limited Energy Supplementation of Yearling Steers Grazing Irrigated Pasture and Subsequent Feedlot Performance

Lake, R. P.; Hildebrand, Renate; Clanton, D. C.; Jones, L. E.

doi:10.2527/jas1974.395827x

Cited by 36 publications

(20 citation statements)

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“…Cows that received ear corn gained 5 kg and cows that received ear corn plus protein supplement gained 1 kg during the calving season, although they experienced the loss of weight due to calving. Others have reported improved performance with cattle and sheep fed mediumquality (Allden, 1959;Allden and Tudor, 1976) or high-quality forages (Lake et al, 1974;Coleman et al, 1976; Denham, 1977) and supplemented with grain. Calves from the cows supplemented with ear corn gained less weight from birth to time of going to summer pasture than did calves from cows fed the supplements with protein; this implies that the higher gain of BW in cows receiving only ear corn was at the expense of milk production.…”

Section: Resultsmentioning

confidence: 99%

Intake and digestion of low-quality meadow hay by steers and performance of cows on native range when fed protein supplements containing various levels of corn.

Sanson¹,

Clanton²,

Rush³

1990

Journal of Animal Science

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University of ~e b r a s k a~, North Platte 69101 ABSTRACT Two mals were conducted to evaluate the effects of corn in protein supplements fed to cattle receiving low-quality forages. In Trial 1, four ruminally cannulated steers (avg BW 550 kg) and four intact steers (avg BW 270 kg) were used in a replicated latin square to determine intake and digestibility of a low-quality meadow hay (4.3% CP) when fed no supplement (NS), 1.12 g CP/kg BW (PS), 1.12 g CPkg BW with corn supplying 1.98 g starchkg BW (PLC) or 1.12 g CPkg BW with corn supplying 3.96 g starchkg BW (PHC). Hay DM1 decreased (P = .001) and total diet DM1 increased (P = .001) quadratically as supplemental corn increased. Diet DM digestibility increased (P = ,004) and forage DM and hemicellulose digestibility decreased (P I .018) quadratically as level of corn in the diet increased. In Cows that received ear corn lost (P < .001) more weight than cows fed ear corn plus protein supplement, which lost more weight than cows fed only protein supplement (-54, -18 and 6 kg, respectively) during the 112-d winter grazing period. Cows that received ear corn and ear corn plus protein gained more (P < .001) weight during calving and summer grazing (after supplement was withdrawn) than protein-supplemented cows. Reproductive performance was not affected (P > .705) by treatments.

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Section: Resultsmentioning

confidence: 99%

Intake and digestion of low-quality meadow hay by steers and performance of cows on native range when fed protein supplements containing various levels of corn.

Sanson¹,

Clanton²,

Rush³

1990

Journal of Animal Science

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“…The proportion of crude protein in dry matter is approximately 20%, which is in excess of the requirement for yearling steers (Lake et al . 1974).…”

Section: Introductionmentioning

confidence: 99%

The effects of grazing and supplemental protein concentrations during the grazing period on subsequent finishing performance and carcass quality in Japanese Black cattle steers

Sugimoto

Kuzuoka

Yayota

et al. 2004

Animal Science Journal

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The effects of grazing and supplemental protein concentrations, provided during the grazing period, on subsequent finishing performance and carcass quality were investigated. This experiment was carried out using 15 Japanese Black cattle (Wagyu) steers. The steers were fed as follows: (i) grazing supplemented with moderate protein concentrate (GMP) (18% crude protein (CP); dry matter (DM) basis) before finishing, followed by feeding in a barn until slaughter; (ii) grazing supplemented with low protein concentrate (GLP) (14% CP; DM basis) before finishing, followed by feeding in the barn until slaughter; and (iii) no grazing before finishing (NG). From the end of the grazing season to the end of the growing period, the GMP and GLP steers were managed in the same way as the NG steers. All of the animals were fed the same diet in the finishing period (9 months to 28 months). None of the three treatments affected the average daily gains. For all treatments, chilled carcass weights were more than 450 kg and did not differ significantly among the groups. The longissimus muscle areas in the grazed steers were numerically larger than in those receiving the NG treatment. Fat thickness was significantly greater ( P < 0.05) in the NG steers than in the grazed steers. The intramuscular fat and marbling scores were not affected in the grazed steers. In conclusion, the carcass quality of grazed steers was similar to that of the NG steers at a similar final age, and the quantity of meat in the NG steers would be less than that of the GMP and GLP steers. Therefore, spring-born Wagyu steers should be grazed using the GLP supplement before fattening.

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“…In contrast with several papers published in the literature ZORRILLA-RIOS et al, 1989;VANZANT et al, 1990; that have found reduction on total tract DM and OM digestibilities when grain supplementation was fed, in this current study the corn supplementation at 0.3% BW did not promote reductions on nutrients digestibility, mainly on pastures NDF. This found corroborate with other several studies (LAKE et al, 1974;GALYEAN, 1995;DHUYVETTER, 1997;), which reported improvements or no effect of energy supplementation on DM, OM or NDF digestibility for cattle consuming forage diets.…”

Section: Apparent Digestibility and Ruminal Kineticssupporting

confidence: 93%

“…Higher rates of substitution for low levels of energy supplementation were reported by Lake et al (1974), and , all using corn. In the work of Lake et al (1974), with cattle grazing orchardgrass with 17 to 20% CP content, it was observed a decrease on forage intake from 2.89% down to 2.57% BW when corn was offered at level of 0.44% BW. reported decrease on forage intake from 2.76 down to 2.26% BW for grazing animals on temperate grasses with 10.6% CP, and supplemented with whole corn at 0.4% BW.…”

Section: Animal Behavior and Forage Intakementioning

confidence: 87%

Energy supplementation for beef steers grazing tropical grass (Brachiaria brizantha, cv Marandu) managed under rotational system with different initial sward heights

Dórea¹

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Limited Energy Supplementation of Yearling Steers Grazing Irrigated Pasture and Subsequent Feedlot Performance

Cited by 36 publications

References 0 publications

Intake and digestion of low-quality meadow hay by steers and performance of cows on native range when fed protein supplements containing various levels of corn.

Intake and digestion of low-quality meadow hay by steers and performance of cows on native range when fed protein supplements containing various levels of corn.

The effects of grazing and supplemental protein concentrations during the grazing period on subsequent finishing performance and carcass quality in Japanese Black cattle steers

Energy supplementation for beef steers grazing tropical grass (Brachiaria brizantha, cv Marandu) managed under rotational system with different initial sward heights

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