Volume 4, Issue 8 (2-2014)                   rap 2014, 4(8): 35-45 | Back to browse issues page

XML Persian Abstract Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Ramezani M A, Chashnidel Y, Teimori Yansari A, Deldar H. (2014). Effect of Varying Ruminally Degradable to Ruminally Undegradable Protein Ratios on Performance and Carcass Characteristics of Crossbred Male Lambs. rap. 4(8), 35-45.
URL: http://rap.sanru.ac.ir/article-1-286-en.html
Sari Agricultural Sciences and Natural Resources University
Abstract:   (4874 Views)
     The influence of three levels of varying ruminally degradable to ruminally undegradable protein ratio 60: 40 (A), 65:35 (B) and 70: 30(C) on performance and carcass characteristics zel-sangssari male lambs was investigated. Twenty four lambs aged 6-7 months with an initial live weight of 29±2.5 kg were used. The animals were fed for a period of 95 days. The level of metabolisable energy was similar in all the rations (10.5 MJ /KgDM). Dry matter intake (DMI) was measured daily and live weight gain (LWG) was determined fortnightly. At the end of the trial, 50 percent of the animal were slaughtered to determine carcass characteristics quality. The data were statistically analyzed using completely randomized design with 3 diets (n=8). Mean values for the performance of the lambs for A, B and C rations were determine as follows: DMI 1.480, 1.510 and 1.500 Kg/day, LWG 173.2, 200.8 and 210.4 g/day, feed conversion efficiency 8.54, 7.39 and 7.58. There was not significant difference for the whole carcass weight, lean and fat percentage. In conclusion, the optimum performances of zel- sangssari male lambs were met with the ration containing 35% RUP.
Full-Text [PDF 570 kb]   (5789 Downloads)    
Type of Study: Research | Subject: Special
Received: 2014/02/9 | Revised: 2019/02/27 | Accepted: 2014/02/9 | Published: 2014/02/9

Add your comments about this article : Your username or Email:

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | Research On Animal Production

Designed & Developed by : Yektaweb