STUDY OF FATTENING PERFORMANCE AND SOME CARCASS CHARACTERISTIC OF CULLED MALE LORI- BAKHTIARI LAMBS FED WITH UREA TREATED RICE STRAW

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SHADNOUSH G.; ZAMANI F.

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Journal: JOURNAL OF AGRICULTURAL KNOWLEDGE Year:2006 | Volume:16 | Issue:3 Page(s): 183-193

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Title

STUDY OF FATTENING PERFORMANCE AND SOME CARCASS CHARACTERISTIC OF CULLED MALE LORI- BAKHTIARI LAMBS FED WITH UREA TREATED RICE STRAW

Author(s)

SHADNOUSH G. | ZAMANI F. | Issue Writer Certificate

Keywords

FATTENING PERFORMANCEQ2

LORI-BAKHTIARI BREEDQ3

RICE STRAWQ3

TREATMENTQ3

UREAQ3

Abstract

Thirty-six culled male Lori- Bakhtiari lambs, with the average body weight of 53.2±6.15 kg and 270±20 days of age were used in order to study FATTENING PERFORMANCE and carcass characteristics by feeding of UREA Treated RICE STRAW (UTRS) for alfalfa hay replacement. Animals were assigned as a completely randomized design using three diets with 0, 50, and 100% UTRS, respectively, and were substituted on dry weight basis. The diets contained 2.4 Mcal/kg DM metabolizable energy, 13% crude protein for fattening period lasted 80 days after adaptation. The diets fed to animals on the whole meal and adlib consumed at three times a day (6.00, 12.00, 18.00). The means of daily food use was recorded. At the end of the experiment, four lambs from each group were randomly slaughtered for evaluation of physical carcass characteristic. The mean average daily gain for TREATMENTs 1, 2 and 3 were 163,143 and 112 (±17) g, respectively, and the difference between TREATMENT 1 and 3 was significant (P<0.05). Dry matter feed intake for the TREATMENTs 1, 2, and 3 were 1.9, 1.75 and 1.48 kg/day, respectively, but the differences were only significant between TREATMENT 3 and TREATMENTs 1 and 2. The means feed conversion for TREATMENTs 1, 2 and 3 were 12.5, 14.8 and 14 (±1.9), respectively, but the differences were not significant. The TREATMENTs had no significant effect on the means dressing percentage, meat, bone, and subcutaneous fat and tail fat weight. It can be concluded that use and feeding of UTRS up to 50% of alfalfa in the diet of fattening lambs can be useful.

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APA: Copy

SHADNOUSH, G., & ZAMANI, F.. (2006). STUDY OF FATTENING PERFORMANCE AND SOME CARCASS CHARACTERISTIC OF CULLED MALE LORI- BAKHTIARI LAMBS FED WITH UREA TREATED RICE STRAW. JOURNAL OF AGRICULTURAL KNOWLEDGE, 16(3), 183-193. SID. https://sid.ir/paper/28818/en

Vancouver: Copy

SHADNOUSH G., ZAMANI F.. STUDY OF FATTENING PERFORMANCE AND SOME CARCASS CHARACTERISTIC OF CULLED MALE LORI- BAKHTIARI LAMBS FED WITH UREA TREATED RICE STRAW. JOURNAL OF AGRICULTURAL KNOWLEDGE[Internet]. 2006;16(3):183-193. Available from: https://sid.ir/paper/28818/en

IEEE: Copy

G. SHADNOUSH, and F. ZAMANI, “STUDY OF FATTENING PERFORMANCE AND SOME CARCASS CHARACTERISTIC OF CULLED MALE LORI- BAKHTIARI LAMBS FED WITH UREA TREATED RICE STRAW,” JOURNAL OF AGRICULTURAL KNOWLEDGE, vol. 16, no. 3, pp. 183–193, 2006, [Online]. Available: https://sid.ir/paper/28818/en

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