Gwenaël FORGEARD (1), Lilian LELOUTRE (1) (1) TECHNA FRANCE NUTRITION, 41 Route de St-Etienne-de-Montluc, BP10, 44220 COUËRON, France
INTRODUCTION
For economic and organizational reasons, dairy farmers are looking for an increase in the productivity of their animals. The nutrient efficiency in the feeding of dairy cattle is enormous importance, especially with regard to cost-optimised feeding.
Essential oils contain active ingredients that can modify the microbial activity of the rumen including the possibility of limiting the degradation of proteins and so increase the amount of protein available in the intestine (Macheboeuf and al., 2008; Forgeard et al., 2018). This property can be used to decrease the proportion of degraded protein in the rumen and so participate to balance protein in the diet and improve protein efficiency. This would also have a positive impact on the cost of the feed ration and lead to reduced nitrogen excretion into the environment.
OBJECTIVE
To determine the effect of feeding Novatan to dairy cows on zootechnical performances.
MATERIALS & METHODS
- The trial takes place in a commercial farm (Egypt) during summer 2010 (8 weeks).
- 2 similar groups of 40 cows Prim’Holstein were formed according to their parity, stage of lactation (< 300 DIM), raw milk production. Each group has been divided in 2 groups (< or > 180 DIM).
- All the cows receive a complete diet (1 UFL, 19% CP,130/114/63 PDI, 65,7% TD, 30,8% starch + sugar, 5,5% fat, 13% CF, 29% NDF) : 4,8kg corn silage, 2,5 kg alfalfa silage, 4,3kg corn grain, 3,2 kg soybean meal , 0,6kg cottonseed meal, 2kg wheat bran, 1,8 kg corn gluten feed, 0,5kg protected fat, 0,2kg sodium bicarbonate
- The NOVATAN group receive 10g/head/day of NOVATAN in top-feeding.
STATISTICAL ANALYSIS No statistical analysis.
RESULTS & IMPLICATIONS
Figure 1: Milk production of dairy cows < 180 DIM during the trial
Figure 2: Milk production of dairy cows > 180 DIM during the trial
REFERENCES:
- Forgeard G., Rougier-Borne C.,Leloutre L., Broudiscou L., 3R Meeting, 2018.
- Macheboeuf D., Morgavi D.P., Papon Y., Mousset J.-L., Arturo-Schaan M., 2008. Anim. Feed Sci. Technol, 145, 335-350