EFFECT OF ZEOLITE ON FEEDLOT PERFORMANCE AND CARCASS CHARACTERISTICS OF CALVES FED WITH UREA-TREATED CORN SILAGE

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ROUGHANI E.; ARAB M.; ZAMIRI M.J.; KHALIFEH A.A.

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Journal: Year:2007 | Volume:20 | Issue:3 (76 IN ANIMAL AND FISHERIES SCIENCES) Page(s): 43-50

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Title

EFFECT OF ZEOLITE ON FEEDLOT PERFORMANCE AND CARCASS CHARACTERISTICS OF CALVES FED WITH UREA-TREATED CORN SILAGE

Author(s)

ROUGHANI E. | ARAB M. | ZAMIRI M.J. | KHALIFEH A.A. | Issue Writer Certificate

Keywords

ZEOLITEQ2

FEEDLOT PERFORMANCEQ3

CARCASS CHARACTERISTICSQ3

UREA-TREATED CORN SILAGEQ3

Abstract

The effect of a natural ZEOLITE (clinoptilolite) on FEEDLOT PERFORMANCE and CARCASS CHARACTERISTICS of Holstein bull calves (188 kg ± 28 body weight) was studied in a completely randomized design using three groups of calves (n=5 in each group). Experimental animals were fed ad-libitum as a total mixed ration (TMR) for 160 days in individual stalls. The diets were: group 1, untreated corn silage, group 2, corn silage treated with 1% urea and group 3, corn silage treated with 1% urea and 3% ZEOLITE (added to the concentrate). The other ingredients of the rations were similar as follows: corn silage, alfalfa hay, barley grain, corn grain, cotton seed meal, limestone, and salt. At the end of experiment, the calves were bled and slaughtered and carcass physical and chemical composition was determined. The basal diet was formulated according to the NRC (1989) with the concentrate to roughage ratio of 50:50 and contained 2.67 Mcal ME/kg DM and 13.40% crude-protein. Total dry matter intake during the experimental period was significantly affected (p<0.05) by treatments and was 1136.80, 1146.84 and 1156.40 kg for treatments 1, 2 and 3, respectively. The mean weight gain, (169.60, 175.80 and 174:00 kg for treatments 1 , 2 and 3, respectively), feed conversion ratio (6.73, 6.56 and 6.72 for treatments 1, 2 and 3, respectively), and serum sodium and potassium concentrations were not significantly different among groups (p>0.05), although ZEOLITE supplementation tended to increase ash and crude protein percentage and decrease fat percentage of boneless meat. The longissimus dorsi muscle cross-sectional area (cm2) was affected by dietary treatments; the ZEOLITE diet had the highest (86.60) and the urea treated diet had the lowest (72.27) values.These findings indicted that, under the conditions of this experiment, in spite of some improvements in dry matter intake and CARCASS CHARACTERISTICS, the addition of ZEOLITE to the diet of feedlot Holstein bull calves, was not advantageous.

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APA: Copy

ROUGHANI, E., ARAB, M., ZAMIRI, M.J., & KHALIFEH, A.A.. (2007). EFFECT OF ZEOLITE ON FEEDLOT PERFORMANCE AND CARCASS CHARACTERISTICS OF CALVES FED WITH UREA-TREATED CORN SILAGE. PAJOUHESH-VA-SAZANDEGI, 20(3 (76 IN ANIMAL AND FISHERIES SCIENCES)), 43-50. SID. https://sid.ir/paper/19672/en

Vancouver: Copy

ROUGHANI E., ARAB M., ZAMIRI M.J., KHALIFEH A.A.. EFFECT OF ZEOLITE ON FEEDLOT PERFORMANCE AND CARCASS CHARACTERISTICS OF CALVES FED WITH UREA-TREATED CORN SILAGE. PAJOUHESH-VA-SAZANDEGI[Internet]. 2007;20(3 (76 IN ANIMAL AND FISHERIES SCIENCES)):43-50. Available from: https://sid.ir/paper/19672/en

IEEE: Copy

E. ROUGHANI, M. ARAB, M.J. ZAMIRI, and A.A. KHALIFEH, “EFFECT OF ZEOLITE ON FEEDLOT PERFORMANCE AND CARCASS CHARACTERISTICS OF CALVES FED WITH UREA-TREATED CORN SILAGE,” PAJOUHESH-VA-SAZANDEGI, vol. 20, no. 3 (76 IN ANIMAL AND FISHERIES SCIENCES), pp. 43–50, 2007, [Online]. Available: https://sid.ir/paper/19672/en

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