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Paper Information

Journal:   ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ)   2015 , Volume 25 , Number 4; Page(s) 11 To 21.
 
Paper: 

EFFECT OF CHOLINE AND L-CARNITINE ON PERFORMANCE, APPARENT DIGESTIBILITY AND CARCASS CHARACTERISTICS OF HOLSTEIN MALE CALVES

 
 
Author(s):  HAJILOU M., DEHGHAN BANADAKY M.*, ZALI A., REZAYAZDI K.
 
* DEPARTMENT OF ANIMAL SCIENCE, FACULTY OF AGRICULTURAL SCIENCES AND ENGINEERING, UNIVERSITY OF TEHRAN, TEHRAN, IRAN
 
Abstract: 

BACKGROUND: L-carnitine and choline affected lipid metabolism and deposition of fat in the carcass and liver.
OBJECTIVES: An experiment was conducted to determinate the effects of rumen protected choline (RPC) and L-carnitine on growth performance, carcass characteristics and apparent digestibility of finishing male calves.
METHODS: 28 Holstein male calves (average initial weigh 300
±24 kg) used in 4 treatments with 7 replicates in a completely randomized design for 100 days. Treatments included: 1) without L-carnitine and RPC or control, 2) 4g L-carnitine d-1 head-1, 3) 5 g RPC d-1 head-1 and 4) 4 g L-carnitine d-1 head-1 and 5 g RPC d-1 head-1. Calves had free access to balanced TMR and water. Monthly body weight changes and daily individual feed intake recorded. Carcass characteristics were measured on the day of slaughter.
RESULTS: There were no differences among diets for DMI, ADG and feed efficiency. Apparent digestibility of dry matter, organic matter and natural detergent fiber numerically decreased in calves fed RPC (P<0.08). Extra carcass fat and back fat thickness decreased significantly in calves fed L-carnitine and RPC (P<0.05). Pelvic, kidney, heart and rumen and intestine fats were not affected by treatments. Hot carcass, femur, liver, kidney, heart, spleen, lung and trachea, skin and empty rumen weights and carcass length were not affected by L-carnitine and RPC.
CONCLUSIONS: This study showed that L-carnitine and RPC supplements cannot affect growth performance in Holstein young bulls, but lipid metabolism may be affected by L-carnitine and RPC.

 
Keyword(s): CARCASS CHARACTERISTICS, HOLSTEIN MALE CALVE, L-CARNITINE, PERFORMANCE, RUMEN PROTECTED CHOLINE
 
 
References: 
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Click to Cite.
APA: Copy

HAJILOU, M., & DEHGHAN BANADAKY, M., & ZALI, A., & REZAYAZDI, K. (2015). EFFECT OF CHOLINE AND L-CARNITINE ON PERFORMANCE, APPARENT DIGESTIBILITY AND CARCASS CHARACTERISTICS OF HOLSTEIN MALE CALVES. ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ), 25(4), 11-21. https://www.sid.ir/en/journal/ViewPaper.aspx?id=508665



Vancouver: Copy

HAJILOU M., DEHGHAN BANADAKY M., ZALI A., REZAYAZDI K.. EFFECT OF CHOLINE AND L-CARNITINE ON PERFORMANCE, APPARENT DIGESTIBILITY AND CARCASS CHARACTERISTICS OF HOLSTEIN MALE CALVES. ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ). 2015 [cited 2021May09];25(4):11-21. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=508665



IEEE: Copy

HAJILOU, M., DEHGHAN BANADAKY, M., ZALI, A., REZAYAZDI, K., 2015. EFFECT OF CHOLINE AND L-CARNITINE ON PERFORMANCE, APPARENT DIGESTIBILITY AND CARCASS CHARACTERISTICS OF HOLSTEIN MALE CALVES. ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ), [online] 25(4), pp.11-21. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=508665.



 
 
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