EFFECTS OF REPLACING SOYBEAN MEAL WITH HEAT-TREATED SOYBEAN MEAL IN DIETS VARYING IN CRUDE PREOTIEN CONTENT ON PERFORMANCE OF DAIRY COWS UNDER MILD HEAT STRESS

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NOEROOZI DEYARJAN MASOUD; ASADI ALAMOUTI ALI; AFZALZADEH AHMAD; DANESH MESGARAN MOHSEN

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Journal: Journal of Animal Production Year:2018 | Volume:19 | Issue:4 Page(s): 751-764

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Title

EFFECTS OF REPLACING SOYBEAN MEAL WITH HEAT-TREATED SOYBEAN MEAL IN DIETS VARYING IN CRUDE PREOTIEN CONTENT ON PERFORMANCE OF DAIRY COWS UNDER MILD HEAT STRESS

Author(s)

NOEROOZI DEYARJAN MASOUD | ASADI ALAMOUTI ALI | AFZALZADEH AHMAD | DANESH MESGARAN MOHSEN | Issue Writer Certificate

Keywords

AMBIENT TEMPERATUREQ1

DAIRY COWQ1

FEED INTAKEQ2

HEAT PROCESSINGQ2

SOYBEAN MEALQ1

Abstract

This study examined the effects of partial replacement of SOYBEAN MEAL (SBM) with heat-treated SOYBEAN MEAL (HSBM) in diets of heat-stressed cows. Thirty-two multiparous Holstein cows (DIM= 110± 20, milk yield= 40± 4. 1 kg) were used in a complete block randomized design with a 2×2 factorial arrangment of treatments. Treatments included two dietary crude protein (CP) levels (i. e. 17 and 15. 5%) each supplied with either SBM or HSBM partially replaced for SBM. The experiment was conducted in two periods of 28 days with the last seven days for sampling and collection of data of tempreature, nutrient intake and digestibility and blood variables. Average THI showed that cows were in mild heat stress (70. 60 and 71. 50 for periods 1 and 2, respectively). Diets with 15. 5% CP and based on HSBM increased intakes of dry and organic matter (P<0. 05); however, this was not observed in diets with 17% CP. Milk yiled and composition, apparent nutrient digestibility and blood variables were unaffected by treatments. Ruminal butyric and isovaleric acid increased in cows received HSBM (P<0. 05); however, level of CP had no effect. Results showed that feeding HSBM in diets with 15. 5% CP could improve DM intake of mild heat-stressed cows.

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APA: Copy

NOEROOZI DEYARJAN, MASOUD, ASADI ALAMOUTI, ALI, AFZALZADEH, AHMAD, & DANESH MESGARAN, MOHSEN. (2018). EFFECTS OF REPLACING SOYBEAN MEAL WITH HEAT-TREATED SOYBEAN MEAL IN DIETS VARYING IN CRUDE PREOTIEN CONTENT ON PERFORMANCE OF DAIRY COWS UNDER MILD HEAT STRESS. JOURNAL OF ANIMAL PRODUCTION (JOURNAL OF AGRICULTURE), 19(4 ), 751-764. SID. https://sid.ir/paper/209053/en

Vancouver: Copy

NOEROOZI DEYARJAN MASOUD, ASADI ALAMOUTI ALI, AFZALZADEH AHMAD, DANESH MESGARAN MOHSEN. EFFECTS OF REPLACING SOYBEAN MEAL WITH HEAT-TREATED SOYBEAN MEAL IN DIETS VARYING IN CRUDE PREOTIEN CONTENT ON PERFORMANCE OF DAIRY COWS UNDER MILD HEAT STRESS. JOURNAL OF ANIMAL PRODUCTION (JOURNAL OF AGRICULTURE)[Internet]. 2018;19(4 ):751-764. Available from: https://sid.ir/paper/209053/en

IEEE: Copy

MASOUD NOEROOZI DEYARJAN, ALI ASADI ALAMOUTI, AHMAD AFZALZADEH, and MOHSEN DANESH MESGARAN, “EFFECTS OF REPLACING SOYBEAN MEAL WITH HEAT-TREATED SOYBEAN MEAL IN DIETS VARYING IN CRUDE PREOTIEN CONTENT ON PERFORMANCE OF DAIRY COWS UNDER MILD HEAT STRESS,” JOURNAL OF ANIMAL PRODUCTION (JOURNAL OF AGRICULTURE), vol. 19, no. 4 , pp. 751–764, 2018, [Online]. Available: https://sid.ir/paper/209053/en

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