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Information Journal Paper

Title

Comparing growth performance, carcass characteristics, and economic profits between Holstein-Belgian Blue cross and pure Holstein calves

Pages

  97-108

Abstract

 Background and objectives: Red meat is one of the strategic foods to meet the increasing requirements of human populations to high quality protein. Therefore, this study aimed to compare growth performance, carcass characteristics, and economic profits between Holstein-Belgian Blue cross and pure Holstein calves. Material and methods: This study was carried out in the Mahdasht Milk and Meat farm, Dasht-e Naz Agriculture Company near Sari (Mazandaran, Iran). The performance of 24 calves of each breed (48 calves in total) was compared in a fattening period of 7 months. The average weight and age of calves at the start of the experiment were 258. 21 and 274. 95 kg; 321 and 313 d, respectively. Feed intake was measured daily for each group. A total mixed ration was delivered to the experimental animals twice a day at 0800 and 1600 h. Animals weighted monthly to obtain average daily gain. Statistical analyses were performed using SAS software (GLM and MIXED procedures). Results: The results indicated that average daily gain was significantly higher in crossbred calves than in pure-bred Holstein calves (1. 43 vs 1. 33 kg). The pure-bred Holstein calves had significantly lower dry matter intake than Belgian Blue crossbred calves. However, feed conversion ratio was no significant in Belgian Blue crossbred calves when compared to the Holstein group (6. 74 vs 7. 04). the Dressing percentage for BB×H crossbred was higher than for pure Holstein. The effect of genetic groups was not significant on the thickness of the fat covering the back, through the front, and back hindquarters. However, the thickness of the fat covering loin was significantly different between genetic groups (P<0. 05). Weights of internal organs (i. e., kidneys, liver, and heart) were significantly higher in pure Holstein calves than those in crossbred cattle. Also, fat depots weight (subcutaneous and visceral) was significantly highest in pure Holstein and lowest in Belgian Blue crossbred calves (P<0. 05). Conclusions: Economic calculations demonstrated that the respective highest profit for the whole fattening period belonged to crossbreds of BB×H (38543843 Rials), and pure Holsteins (24826300 Rials). Therefore, the hypothesis that the calves from Holstein-beef crosses have higher economic productivity than pure Holstein calves was substantiated.

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    APA: Copy

    Rezagholivand, A., RAJAEE, A., Khabbazan, M.H., HOSSEINI, S.M.R., DEHGHAN, M., & Mokhtabad, Yosef. (2021). Comparing growth performance, carcass characteristics, and economic profits between Holstein-Belgian Blue cross and pure Holstein calves. JOURNAL OF RUMINANT RESEARCH, 8(4 ), 97-108. SID. https://sid.ir/paper/953731/en

    Vancouver: Copy

    Rezagholivand A., RAJAEE A., Khabbazan M.H., HOSSEINI S.M.R., DEHGHAN M., Mokhtabad Yosef. Comparing growth performance, carcass characteristics, and economic profits between Holstein-Belgian Blue cross and pure Holstein calves. JOURNAL OF RUMINANT RESEARCH[Internet]. 2021;8(4 ):97-108. Available from: https://sid.ir/paper/953731/en

    IEEE: Copy

    A. Rezagholivand, A. RAJAEE, M.H. Khabbazan, S.M.R. HOSSEINI, M. DEHGHAN, and Yosef Mokhtabad, “Comparing growth performance, carcass characteristics, and economic profits between Holstein-Belgian Blue cross and pure Holstein calves,” JOURNAL OF RUMINANT RESEARCH, vol. 8, no. 4 , pp. 97–108, 2021, [Online]. Available: https://sid.ir/paper/953731/en

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