Effect of a Formulated Ration Using Seed Waste on Milk Quantity and Quality among Lactating Friesian Cows

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Monica J. Yator
Jackson K. Kitilit


Formulated diet, lactating cows, commercial concentrates, seed wastes, milk


The Dairy industry in Kenya contributes 26% of the National GDP. However, dairy farmers experience low milk production despite their investment on commercial concentrates. Seed processing factories spend money in disposing off their by-products such as maize cobs, broken maize grains, and bean hulls that accumulate in order to create working space. These by-products may be used to compound diets to meet the lactating cow’s nutrient needs at an affordable cost. The objective of this study was to formulate and evaluate the performance of lactating cows on the formulated diet (Y) and compare with three different commercial concentrates. Ration (Y) was formulated using the Seed processing wastes and other crop by-products from other companies. The ingredients were; Male maize lines of corn, Molasses, Milling Maize chaff, Cotton seed cake, Limestone and Dairy premix. A feeding trial was carried using Friesian lactating cows. A 5 x 5 Latin Square experimental design was used. The cows were fed on chopped Napier grass as a basal diet, mineral supplement of 100g/day/cow and water was provided ad lib. The trial was to evaluate the performance of lactating Holstein Friesians fed on the formulated and three different commercial diets. The commercial diets were coded W, X & Z, formulated diet was coded Y, and diet C was the control. Proximate Analysis was carried out on the feed samples. Milk yields were measured daily and composition determined weekly for each treatment. The data obtained was analyzed using ANOVA, and significant means were separated. In the trial, there was significant increase in milk yields in all the cows fed on both the formulated and commercial diets. The highest mean yield was 6.15L/day for diet X, and the lowest was 4.05L/day in the control. Diet Y, Z, and W had mean milk yield of 5.27, 5.61, and 5.98L/day respectively. When compared to the commercial concentrates, diet X was better in milk yields. From this study, it was deduced that the formulated diet (Y) can be used as a supplement to improve on milk yield of dairy animals.

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