Effects of steam-flaked corn on the performance and blood biochemical parameters in finishing steers

Abstract

This paper aims at studying the effect of steam-flaked corn instead of corn in the diet for finishing steers on the growth performance and blood biochemical parameters. A single-factor design was used. There were 28 simmental crossbred steers with the similar bodyweight (414.4±29.3 kg, P>0.05) selected and allotted to four groups with seven duplicates in each group. Steam-flaked corn replaced the proportion of normal cracked corn, which was of 0, 30%, 60%, or 90% in the concentrate of Groups I, II, III, or IV, respectively. The results showed that the steam-flaked corn replacing ordinary cracked corn could significantly improve the growth of steers. The daily growth rate (ADG) was increased by about 37.16% from 985.3 g/d to 1351.4 g/d. The feed efficiency was significantly improved by 27.46%. The feed to gain ratio was decreased from 5.68 to 4.12. Serum urea nitrogen was decreased from 4.59 mmol/L to 3.66 mmol/L. Under the experiment conditions, steam-flaked corn replacing ordinary cracked corn could increase the feed efficiency with an optimal replacing ratio of 90%.

Key words： steam-flaked corn; feed to gain ratio; daily growth rate (ADG); digestibility; blood biochemical parameters

Acknowledgements

This research was supported by the earmarked fund for China Agriculture Research System (CARS-38) and the Key Technology R&D Program of Hebei Province, China (No. 10220401D)

References

1 AOAC (1999). Official Methods of Analysis of AOAC International. 16th ed., 5th rev. Assoc. Off. Anal. Chem. Intl., Gaithersburg, MD

2 Barajas R, Zinn R A (1998). The feeding value of dry-rolled and steam-flaked corn in finishing diets for feedlot cattle: influence of protein supplementation. J Anim Sci, 76(7): 1744–1752

PMID

3 Bengochea W L, Lardy G P, Bauer M L, Soto-Navarro S A (2005). Effect of grain processing degree on intake, digestion, ruminal fermentation, and performance characteristics of steers fed medium-concentrate growing diets. J Anim Sci, 83(12): 2815–2825

PMID

4 Borg B S, Libal G W, Wahlstrom R C (1987). Tryptophan and threonine requirements of young pigs and their effects on serum calcium, phosphorus and zinc concentrations. J Anim Sci, 64(4): 1070–1078

PMID

5 Burkholder K M, Guyton A D, McKinney J M, Knowlton K F (2004). The effect of steam flaked or dry ground corn and supplemental phytic acid on nitrogen partitioning in lactating cows and ammonia emission from manure. J Dairy Sci, 87(8): 2546–2553 pubmed/15328278

6 Chen T, Gao Y X, Cao Y F, Li J G, Li W J (2009). Effects of steam-flaked corn on the production performance and excretion of nitrogen and phosphorus in dairy cows. Acta Veterinaria et Zootechnica Sinica, 40(12): 1769–1775

7 Defoor P J, Galyean M L, Cole N A, Jones O R (2000). Effects of planting density and processing method on laboratory characteristics of grain sorghum for ruminants. J Anim Sci, 78(8): 2032–2038

PMID

8 Guyton J, McKinney M, Knowlton K F (2003). The effect of steam-flaked or dry ground corn and supplemental phytic acid on phosphorus partitioning and ruminal phytase activity in lactating cows. J Dairy Sci, 86:3972–3982 pubmed/14740835

9 Hales K E, McMeniman J P, Leibovich J, Vasconcelos J T, Quinn M J, May M L, DiLorenzo N, Smith D R, Galyean M L (2010). Effects of varying bulk densities of steam-flaked corn and dietary roughage concentration on in vitro fermentation, performance, carcass quality, and acid-base balance measurements in finishing steers. J Anim Sci, 88(3): 1135–1147

PMID

10 Huntington G B (1997). Starch utilization by ruminants: from basics to the bunk. J Anim Sci, 75(3): 852–867

PMID

11 Johnson D E, Matsushima J K, Knox K L (1968). Utilization of flaked vs. cracked corn by steers with observations on starch modification. J Anim Sci, 27: 1431–1437

12 Karr M R, Little C O, Mitchell G E Jr (1966). Starch disappearance from different segments of the digestive tract of steers. J Anim Sci, 25(3): 652–654

PMID

13 Li F Ch, Feng Y L, Mo F, Li S L, Yang Y F (1998). The digestibility of cooked corn starch and its effect on nitrogen retention and blood glucose in beef cattle. Journal of China Agricultural University, 03(Suppl): 167–171 (in Chinese)

14 Liang G F, Li N, Yang J M (2007). Steam-flake corn processing engineering and the effect on performance of cattle. Feed Industry, 28(5): 57–60 (in Chinese)

15 Moe P W, Tyrrell H F (1977). Effects of feed intake and physical form on energy value of corn in timothy hay diets for lactating cows. J Dairy Sci, 60(5): 752–758

16 Murphy T A, Fluharty F L, Loerch S C (1994). The influence of intake level and corn processing on digestibility and ruminal metabolism in steers fed all-concentrate diets. J Anim Sci, 72(6): 1608–1615

PMID

17 Owens F N, Secrist D S, Hill W J, Gill D R (1997). The effect of grain source and grain processing on performance of feedlot cattle: a review. J Anim Sci, 75(3): 868–879

PMID

18 Owens F N, Secrist D S, Hill W J, Gill D R (1998). Acidosis in cattle: a review. J Anim Sci, 76(1): 275–286

PMID

19 Reed J J, Bauer M L, Lardy G P, Loe E R, Caton J S (2005). Effect of processing on feeding value of sprouted barley and sprouted durum in growing and finishing rations for beef cattle. Prof Anim Sci, 21: 7–12

20 Reinhardt C D, Brandt R T Jr, Eck T P, Titgemeyer E C (1998). Performance, digestion, and mastication efficiency of Holstein steers fed whole or processed corn in limit- or full-fed growing-finishing systems. J Anim Sci, 76(7): 1778–1788

PMID

21 Shi X P, Wang Z M, Jia L F (2006). Steam-flaked corn and its extended significance to popularize. Dairy guide, 2006(03): 59–60 (in Chinese)

22 Swingle R S, Eck T P, Theurer C B, De la Llata M, Poore M H, Moore J A (1999). Flake density of steam-processed sorghum grain alters performance and sites of digestibility by growing-finishing steers. J Anim Sci, 77(5): 1055–1065

PMID

23 Van Soest P J, Robertson J B, Lewis B A (1991). Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. J Dairy Sci, 74(10): 3583–3597

PMID

24 Xiong Y, Bartle S J, Preston R L (1991). Density of steam-flaked sorghum grain, roughage level, and feeding regimen for feedlot steers. J Anim Sci, 69(4): 1707–1718

PMID

25 Zinn R A (1990). Influence of flake density on the comparative feeding value of steam-flaked corn for feedlot cattle. J Anim Sci, 68(3): 767–775

PMID

26 Zinn R A, Adam C F, Tamayo M S (1995). Interaction of feed intake level on comparative ruminal and total tract digestion of dry-rolled and steam-flaked corn. J Anim Sci, 73(5): 1239–1245

PMID

27 Zinn R A, Owens F N, Ware R A (2002). Flaking corn: processing mechanics, quality standards, and impacts on energy availability and performance of feedlot cattle. J Anim Sci, 80(5): 1145–1156

PMID