1 / 17

AIM OF THE STUDY

CRITICAL POINTS IN THE FEEDING OF HIGH YIELDING DAIRY COWS IN ASSOCIATION WITH BCS AND METABOLIC PROFILE TEST Gergácz, Z., Szűcs, E. University of West Hungary, Faculty of Agricultural and Food Sciences Mosonmagyaróvár, Hungary. AIM OF THE STUDY.

atalo
Download Presentation

AIM OF THE STUDY

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CRITICAL POINTS IN THE FEEDING OF HIGH YIELDING DAIRY COWS IN ASSOCIATION WITH BCS AND METABOLIC PROFILE TESTGergácz, Z., Szűcs, E.University of West Hungary, Faculty of Agricultural and Food SciencesMosonmagyaróvár, Hungary

  2. AIM OF THE STUDY The aim of the studywas to analyse the relationship between the body condition and the results of metabolic profile test have been done in dairy cows in different days in milk (DIM).

  3. INTRODUCTION • Body Condition Score (BCS) is a useful managementtool to assess body fat stores especially in Holstein dairy cows. The method is based on a visual and tactile appraisal of body fat reserves in the back and pelvic regions and BCS is usually scored on a scale of 1 to 5. (Edmonson et al. 1989). • The BCS has been proposedtomeasure changes in body reserve as a result of negative energy balance (Berry et al., 2002).

  4. INTRODUCTION • High yielding dairy cows express more severe prolonged negative energy balance, which results in greater biological stress.This stress mayimpactupon the reproductionand immune systems leading to fertility and health problems during and beyond the negative energy balance period (Berry et al., 2002).

  5. MATERIAL AND METHODS • Blood samples (N = 1984) were taken from clinically healthy, randomly selected animals(1-14days before calving, 1-30 after calving,and older than 30 days after calving). Samples were taken after the morning feeding in the 3-5 hours. • Physiological values insamples taken were analysed as follows: blood’shaemoglobin, the plasma’saceto-acetic acid, FFA, glucose, urea concentration and AST’s activity value, and theurine’s pH, NABE and ureaparameters. • Brydl summarized the normalvalues(reference values) characterizing the metabolism of dairy cows. (The brown dotted lines are shown in the Figures also.) • Simultaneously, body condition of all animals was evaluated using a 5 point scale.

  6. RESULT OF FACTOR ANALYSIS

  7. RESULTS(P≤0.001)

  8. RESULTS(P≤0.001)

  9. RESULTS(P≤0.01)

  10. RESULTS(P≤0.05)

  11. RESULTS(P≤0.01)

  12. RESULTS(P≤0.01)

  13. RESULTS(P≤0.01)

  14. RESULTS(P≤0.05)

  15. CONCLUSION • According to our results could validated may estimate the critical periods of lactation by the BCS and metabolic profile tests in high yielding dairy cows. • The largest risks of diseases and economic damage were in first 50 DIM after calving. The normal rumen functions andthe harmonious nutriment supply according to the needs of the animals should be reinstated by optimizing the TMR formulas. • The results of the study confirm that the body condition scoring is a reliable and cheap tool for revealing the risk of metabolic disorders caused by malnutrition.

  16. AIM OF OUR WORK

  17. THANK YOU FOR ATTENTION Mulţumesc pentru atenţia Dumneavoastră !

More Related