Year 2012, Volume 15, Issue 1, Pages 34 - 45 2012-06-08

Effect of Protein Levels and Degradability in the Ration on Awassi Lambs Performance 1-Productive Parameters

Shaker HASSAN [1] , Ali SAEED [2]

147 390

ABSTRACT : Factorial experiment was carried out using forty eight individually fed Awassi male lambs weighing 26.5 kg ± 1.1 and 5 months of old were used to investigate their responses to feeding concentrate diets containing three levels of dietary crude protein (CP, 11.5, 13.5 and 15.5%) each level was formulated with high and low nitrogen degradability[rumen degradable N (RDN): undegradable dietary N (UDN) ratio]. Concentrates were offered once a day at rate of 3% of live body weight with free choice of barley straw. Results revealed that neither straw nutrient intakes, nor the total intake were significantly affected by increasing levels of dietary CP or RDN: UDN ratios, However, total nitrogen (N) intake was increased significantly (P<0.01). Better intake of digestible dry matter (DDM) and organic matter (DOM) intakes were achieved (P<0.05) by lambs fed the medium level of dietary CP. Gain was not significantly affected by RDN:UDN ratio, However, lambs fed medium and high levels gained higher (P<0.05) than those fed the low level of dietary CP. Feed conversion ratio (FCR) based on DM and OM intakes was not significantly affected by level of dietary CP or RDN:UDN ratio, Even though, less amount of N required per unit of gain was achieved with low and medium as compared to high levels. Higher DM, nitrogen free extract (NFE) and hemicellulose (P<0.05), OM, CP, crude fiber (CF) and cellulose (P<0.01) digestibilities were achieved by lambs fed the medium level of CP, whereas, no significant effect was observed on ether extract (EE), neutral detergent fiber (NDF) and acid detergent fiber (ADF) digestibilities. Lambs fed diets formulated with low RDN: UDN ratio digested its dietary nutrients at higher rate than those fed diets formulated with the high ratio. Effect of interaction between levels of dietary CP and RDN: UDN ratio revealed that productive parameters of lambs fed diets containing medium level of CP and formulated with low RDN:UDN ratio was somewhat tended be better.

Keywords: protein ,degradability, digestibility, growth ,sheep

Primary Language en
Journal Section HAYVAN BESLEME (Animal Nutrition)
Authors

Author: Shaker HASSAN

Author: Ali SAEED

Dates

Publication Date: June 8, 2012

Bibtex @ { ksudobil243752, journal = {KSÜ Doğa Bilimleri Dergisi}, issn = {}, eissn = {1309-1743}, address = {Kahramanmaras Sutcu Imam University}, year = {2012}, volume = {15}, pages = {34 - 45}, doi = {10.18016/ksujns.07590}, title = {Effect of Protein Levels and Degradability in the Ration on Awassi Lambs Performance 1-Productive Parameters}, key = {cite}, author = {HASSAN, Shaker and SAEED, Ali} }
APA HASSAN, S , SAEED, A . (2012). Effect of Protein Levels and Degradability in the Ration on Awassi Lambs Performance 1-Productive Parameters. KSÜ Doğa Bilimleri Dergisi, 15 (1), 34-45. Retrieved from http://dergipark.org.tr/ksudobil/issue/22832/243752
MLA HASSAN, S , SAEED, A . "Effect of Protein Levels and Degradability in the Ration on Awassi Lambs Performance 1-Productive Parameters". KSÜ Doğa Bilimleri Dergisi 15 (2012): 34-45 <http://dergipark.org.tr/ksudobil/issue/22832/243752>
Chicago HASSAN, S , SAEED, A . "Effect of Protein Levels and Degradability in the Ration on Awassi Lambs Performance 1-Productive Parameters". KSÜ Doğa Bilimleri Dergisi 15 (2012): 34-45
RIS TY - JOUR T1 - Effect of Protein Levels and Degradability in the Ration on Awassi Lambs Performance 1-Productive Parameters AU - Shaker HASSAN , Ali SAEED Y1 - 2012 PY - 2012 N1 - DO - T2 - KSÜ Doğa Bilimleri Dergisi JF - Journal JO - JOR SP - 34 EP - 45 VL - 15 IS - 1 SN - -1309-1743 M3 - UR - Y2 - 2019 ER -
EndNote %0 Journal Of Agriculture and Nature Effect of Protein Levels and Degradability in the Ration on Awassi Lambs Performance 1-Productive Parameters %A Shaker HASSAN , Ali SAEED %T Effect of Protein Levels and Degradability in the Ration on Awassi Lambs Performance 1-Productive Parameters %D 2012 %J KSÜ Doğa Bilimleri Dergisi %P -1309-1743 %V 15 %N 1 %R %U
ISNAD HASSAN, Shaker , SAEED, Ali . "Effect of Protein Levels and Degradability in the Ration on Awassi Lambs Performance 1-Productive Parameters". KSÜ Doğa Bilimleri Dergisi 15 / 1 (June 2012): 34-45.
AMA HASSAN S , SAEED A . Effect of Protein Levels and Degradability in the Ration on Awassi Lambs Performance 1-Productive Parameters. KSÜ Doğa Bilimleri Dergisi. 2012; 15(1): 34-45.
Vancouver HASSAN S , SAEED A . Effect of Protein Levels and Degradability in the Ration on Awassi Lambs Performance 1-Productive Parameters. KSÜ Doğa Bilimleri Dergisi. 2012; 15(1): 45-34.