Subject: Bicar®Z effects on milk yield in early lactation

Analyze the effects of Bicar®Z on milk yield in early lactation (first 100-120 days) and evaluate if there is any interest, from an economic and zootechnical point of view, in producing marginal milk.

 

Conditions of the study: a 6-month trial on 160 dairy cows

  • Field study carried out in 2017 on 160 lactating Holstein dairy cows
  • Study led by Daniele Castellani – Veterinary and animal nutrition consultant
  • A 6-month trial done with 2 groups of high-performing cows with similar health and zootechnical conditions and yields.

No cow was given sodium bicarbonate during the 10 months prior to the trial. During the trial, 250 g of Bicar®Z were added per cow to their daily ration.

Herd A & B - control group: no addition of Bicar®Z to daily ration

Herd A & B - test group: addition of 250 gr of Bicar® Z to daily ration

TABLE 1 : Yield, Fat Content and Protein Content based on the number of controls done in herd

Table 1 - BICAR®Z ENHANCES THE PRODUCTION OF MILK DURING EARLY LACTATION- STUDY

 Control Group: Performances at 1rst, 2nd and 3rd controls during the 6 months prior to Bicar®Z  introduction

Test Group: Performances at 1rst, 2nd and 3rd controls during the 6 months of the trial with Bicar®Z addition

 

TABLE 2 : Yield, Fat Content and Protein Content based on the number of controls done in herd B

Table 2- BICAR®Z ENHANCES THE PRODUCTION OF MILK DURING EARLY LACTATION- STUDY

Control Group: Performances at 1rst, 2nd and 3rd controls during the 6 months prior to Bicar®Z  introduction

Test Group: Performances at 1rst, 2nd and 3rd controls during the 6 months of the trial with Bicar®Z addition

 

Figures of Herd A + B in the table below:

TABLE 3 : Yield, Fat Content  and Protein Content based on the number of controls done in herds A and B taken together

Table 3 - BICAR®Z ENHANCES THE PRODUCTION OF MILK DURING EARLY LACTATION- STUDY

Control Group: Performances at 1rst, 2nd and 3rd controls during the 6 months prior to Bicar®Z  introduction

Test Group: Performances at 1rst, 2nd and 3rd controls during the 6 months of the trial with Bicar®Z addition

1,82 kg
of milk/day

Results

Performances during the trial period were checked 3 times and results indicate that the average daily milk production of the herd that had 250 gr of Bicar®Z added to their daily diet increased significantly by 4,9 % (+1,82 kg/ day) compared to the herd that had no Bicar®Z added to their diet (significant difference, p<0,01).

Control group (without sodium bicarbonate) vs. Test group (with sodium bicarbonate):

Table 4 - BICAR®Z ENHANCES THE PRODUCTION OF MILK DURING EARLY LACTATION- STUDY

 

When performances were checked at peak lactation (2° check), results show that the herd that had Bicar®Z administered, produced significantly more milk with regard to the herd that had no Bicar®Z administered (40,7 kg of milk vs. 37,8 kg of milk; significant difference, p<0,01).

 

Conclusions: what can you learn from this study?

Performances observed during the trial period clearly show that with the addition of Bicar®Z , daily milk yield at the initial stage of lactation has increased by 1,82 kg compared to the performances observed without Bicar®Z addition.

These new results prove that, even with already good zootechnical and health performances, milk production at the beginning of lactation significantly enhances when Bicar®Z is added on a daily basis, and are fully in line with the technical and economic production of marginal milk.