Nutritional Strategies for Healthy and Productive Pregnant Pesisir Cattle through Proper Protein and Energy Ratios in Rations

This research evaluated the effect of protein and energy ratio in rations on consumption, digestibility, weight gain, blood mineral content, and blood serum parameters in pregnant Pesisir cows. The treatment factors included two levels of crude protein (10 and 12%) and two levels of TDN (60 and 65%). According to the results, protein and energy ratios did not interact significantly (P>0.05) with any measured parameters. However, the energy factor significantly affected nutrient digestibility and weight gain, with 65% TDN producing the highest values in both parameters. In addition, the protein ratio significantly affected blood glucose and manganese levels, where rations with 12% protein produced higher levels than those with 10% protein. The combination of rations with 12% protein and 65% TDN showed an increasing trend in almost all parameters, although not all were statistically significantly different. These outcomes recommend that growing the protein and energy ratio supports better metabolic performance in pregnant Pesisir cows, especially in improving feed digestibility, body weight gain, and blood metabolic status. Thus, rations with 12% protein and 65% TDN can be recommended as the best option to meet the nutritional needs of pregnant Pesisir cows during pregnancy.