Evaluation of quality of colostrum on different sized dairy farms

Nezaket Sağlam, Onur Topal, Piraye Biçer, Ender Uzabacı, Hıdır Gençoğlu, Hasan Batmaz

Evaluation of quality of colostrum on different sized dairy farms

Číslo: Suppl. 11/2024
Periodikum: Acta Veterinaria Brno
DOI: 10.2754/avb202493S11S3

Klíčová slova: Cattle, passive transfer of immunity, Brix%

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Anotace: Colostrum plays a crucial role in the passive transfer of immunity (PTI) in calves. The quality and quantity of colostrum have a significant impact on PTI. The objective of this study was to assess the quality of colostrum on dairy farms of different sizes. A total of 660 colostrum samples were obtained from 28 farms in 11 provinces in Türkiye. The colostrum samples were divided into five groups according to dairy farms size: Group I (1–100, n = 26), Group II (101–200, n = 37), Group III (201–500, n = 200), Group IV (501–1000, n = 235), Group V (> 1000, n = 162). Colostrum quality was assessed by a Brix refractometer (≤ 22% indicates poor quality colostrum) and evaluated statistically. The mean colostrum Brix% was 27.74 ± 0.14. The Brix% in Groups I–V were 24.04 ± 0.72, 25.70 ± 0.93, 28.11 ± 0.26, 28.46 ± 0.23 and 27.30 ± 0.21, respectively. The rate of poor quality colostrum for the total of 660 cows was 8.03%, for Groups I–V it was 34.61%, 29.72%, 6.0%, 5.53% and 4.93%, respectively. The rates of primiparity for Groups I–V were 65.38%, 54.05%, 49.0%, 35.31% and 43.2%, respectively. The colostrum Brix% was significantly (P = 0.014) lower in primiparous cows (27.08 ± 0.23) than in multiparous cows (28.25 ± 0.18). The highest rate of poor quality of colostrum was found in Groups I and II. This situation on small farms may be due to inadequate management and feeding.