اثر افزودن پسابیوتیک فلورسیس بر سلامت و فراسنجه‌های تولیدی در گاو‌های هلشتاین

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه مهندسی علوم دامی، دانشکدگان کشاورزی و منابع طبیعی دانشگاه تهران، البرز، کرج، ایران

2 گروه مامایی و بیماری‌های تولیدمثلی دام، دانشکده دامپزشکی دانشگاه تهران، تهران، ایران

چکیده

این مطالعه با هدف ارزیابی اثرات افزودن پسابیوتیک[1] فلورسیس بر سلامت و فراسنجه‌های تولیدی گاوهای هلشتاین انجام شد. برای انجام آزمایش تعداد ۲۰ رأس گاو شیری نژاد هلشتاین با میانگین شکم زایش ≥2 در قالب طرح کاملاً تصادفی به دو گروه شاهد (بدون پسابیوتیک) و تیمار (دریافت ۵۰۰ گرم پسابیوتیک در روز) تقسیم شدند. دوره آزمایش از 21 روز پیش از زایش (که 7 روز ابتدایی دوران سازگاری بوده) تا ۴۹ روز پس از زایش ادامه یافت. نمونه گیری از شیر و مدفوع در بازه‌های زمانی مشخص قبل و پس از زایش انجام شد (شیر: روزهای 28،14،3 و 49 پس از زایش و مدفوع روزهای 14 پیش از زایش و 49 پس از زایش). فراسنجه‌های تولیدی شامل تولید و ترکیب شیر (چربی شیر، پروتئین شیر، سلول‌های سوماتیک و لاکتوز شیر) و فراسنجه‌های سلامت شامل امتیاز وضعیت بدن، وزن بدن، ماده خشک مصرفی، دمای رکتوم، تعداد تنفس، تعداد ضربان قلب و اندازه گیری شاخص‌های فیزیکی و جمعیت میکروبی مدفوع (اسکور و باکتری کلی فرم) بود. نتایج نشان داد که افزودن پسابیوتیک موجب بهبود معنی‌داری در تولید شیر (۰۵/۰> P) 42/30 درمقابل 85/26   کیلوگرم در روز، بهبود ترکیبات شیر شامل مقدار چربی (01/0P < )، درصد چربی (01/0P < )، مقدار پروتئین (01/0P < )، درصد پروتئین (01/0P < ) و مقدار لاکتوز (01/0P < ) و همچنین کاهش سلول‌های سوماتیک شیر (01/0P < ) شد. همچنین، بهبود در دمای رکتوم تا حدود 2/0 درجه سلسیوس (01/0P < ) و تعداد ضربان قلب تا 5/1 ضربه در دقیقه (02/0P ≥ ) در گروه تیمار مشاهده گردید. سایر صفات ارزیابی شده تفاوت معنی‌داری را در گروه تیمار نسبت به شاهد نشان ندادند. این مطالعه نشان داد که استفاده از پسابیوتیک فلورسیس می‌تواند در بهبود سلامت و عملکرد گاوهای شیری هلشتاین مؤثر باشد.
 
[1]. postbiotic

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The Supplemental Effect of postbiotic Floresis on Health and Productive Parameters in Holstein Cows

نویسندگان [English]

  • Zahra Rezaei 1
  • Armin Towhidi 1
  • Mahdi Ganjkhanlou 1
  • Hamid Ghasemzadeh-nava 2
1 Department of Animal Science, University College of Agriculture and Natural Resources, University of Tehran, Alborz, Karaj, Iran
2 Department of Theriogenology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
چکیده [English]

This study investigated the effects of Floresis postbiotic supplementation on the health and productive performance of Holstein dairy cows. Twenty multiparous Holstein cows (parity ≥2) were randomly allocated to two groups in a completely randomized design: a control group (no postbiotic) and a treatment group receiving 500 g/day of Floresis postbiotic. The experimental period spanned from 21 days prepartum—including a 7-day adaptation period—to 49 days postpartum. Milk and fecal samples were collected at defined intervals (milk: days 3, 14, 28, and 49 postpartum; feces: day 14 prepartum and day 49 postpartum). Production parameters included milk yield and composition (fat, protein, lactose, and somatic cell count). Health indicators included body condition score, body weight, dry matter intake, rectal temperature, respiratory rate, heart rate, fecal score, and fecal coliform counts.
Postbiotic supplementation significantly increased milk yield (30.42 vs. 26.85 kg/day; P < 0.05), and improved milk composition, including fat content (P < 0.01), protein and lactose percentages and yields (P < 0.01), and reduced somatic cell count (P < 0.01). Additionally, rectal temperature (P < 0.01) and heart rate (P ≤ 0.02) were improved in the treatment group, suggesting better physiological stability. No significant differences were observed in other measured parameters. These findings indicate that Floresis postbiotic can be a safe and effective supplement for improving the health and productive performance of dairy cows.

کلیدواژه‌ها [English]

  • health
  • Holstein cows
  • Floresis postbiotic
  • milk production
  • physiological parameters

REFERENCES

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مراجع

Extended Abstract
Introduction
    The transition period in dairy cows, spanning from three weeks prepartum to three weeks postpartum, is widely recognized as one of the most critical and challenging phases of the lactation cycle (Grummer, 1995). During this period, cows are highly susceptible to metabolic and infectious disorders, collectively referred to as transition disorders (Goff, 2006), primarily due to negative energy balance, impaired immune function, and gastrointestinal dysbiosis (Jahan et al., 2015; Kang et al., 2025). Additionally, increased intestinal permeability—known as leaky gut syndrome (LGS)—has been implicated in triggering systemic inflammation and metabolic disturbances (Abuajamieh et al., 2016). Nutritional interventions targeting gut microbiota, immune modulation, and energy balance are essential for improving health and productivity during this vulnerable stage. Although probiotics and prebiotics have been extensively studied, their limitations in stability and safety remain concerns (Fernández et al., 2023). In contrast, postbiotics—non-viable microbial cells or their metabolic byproducts—have emerged as promising alternatives, offering greater stability, safety, and a range of health-promoting properties (Salminen et al., 2021; Pimentel et al., 2023; Zhong et al., 2022).
 
Materials and Methods
    This study was conducted as a completely randomized design at the Animal Science Research Farm, University of Tehran. Twenty multiparous Holstein cows (parity ≥2) were randomly assigned to two groups: a control group receiving no Floresis postbiotic and a treatment group receiving 500 g/day of Floresis. Both groups were fed a common basal diet starting 21 days prepartum, and postbiotic supplementation commenced 14 days before calving. The trial continued until 49 days postpartum. The chemical composition of Floresis included 42% dry matter, 3,624 kcal/kg metabolizable energy, and 34% crude protein. Parameters recorded included milk yield and composition, body condition score (BCS), body weight, dry matter intake (DMI), rectal temperature (RT), respiratory rate (RR), heart rate (HR), fecal score, and fecal coliform counts. Data were analyzed using the MIXED procedure in SAS (v9.1), with means compared using Duncan’s multiple range test at a significance level of P<0.05.
 
Results
    Postbiotic supplementation significantly increased milk yield (30.42 vs. 26.85 kg/day; P<0.05), fat-corrected milk (FCM), energy-corrected milk (ECM), and the yields and percentages of fat, protein, and lactose. Somatic cell count and somatic cell score were significantly reduced (P<0.01), indicating improved udder health. Rectal temperature and heart rate were also significantly improved (P<0.01 and P≤0.02, respectively), suggesting better metabolic and immune stability. However, no significant differences were observed for DMI, body weight, BCS, respiratory rate, or fecal parameters. Additionally, the use of postbiotics may contribute to reduced enteric methane emissions, offering potential environmental benefits (Hristov, 2023).
 
Conclusion
   Supplementation with Floresis postbiotic during the transition period significantly enhanced milk production, milk composition, and select health indicators in multiparous Holstein cows. Although some parameters remained unaffected, the findings support the use of postbiotics as a safe and effective alternative to probiotics. Further long-term studies are warranted to optimize dosage strategies and evaluate the extended effects of postbiotic use under various management and environmental conditions.
 
Acknowledgements
   This research was financially supported by Darman Gostar Farzanegan Company (Contract No. 403-10166530) and conducted as part of the Sixth-Type Research Project (No. 7108017/6/54)at the University of Tehran.
 

Author Contributions

Conceptualization, Investigation, Formal analysis, Software and Writing-original draft, Z.R.; Supervision, Project administration, Conceptualization, Validation, Writing- review and editing, A.T.; Supervision, Validation, M.G.; Writing, review and editing, H.G.N.
 

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

 

Acknowledgements

This study was financially supported by Darman Gostar Farazangan Company under contract No. 403-10166530 and conducted within the framework of Type VI project of the University of Tehran under project No. 7108017/6/54.

Ethical considerations

All experimental procedures involving animals were approved by the Animal Ethics Committee of the University of Tehran and were conducted in accordance with the approved guidelines.

Conflict of interest

The author declares no conflict of interest.
علوم دامی ایران
دوره 57، شماره 1
فروردین 1405
صفحه 113-130

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  • تاریخ دریافت: 22 خرداد 1404
  • تاریخ بازنگری: 25 تیر 1404
  • تاریخ پذیرش: 28 تیر 1404

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