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21 September 2020 Effects of feeding blend-pelleted co-products on nutrient intake, digestibility, and production performance of high producing dairy cows
Aya Ismael, Victor Hugo Guevara-Oquendo, Basim Refat, Xin Feng, Peiqiang Yu
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Abstract

The objectives of this study were to examine the effects of feeding newly developed blend-pelleted carinata meal (BPPCR) and blend-pelleted canola meal (BPPCN) on nutrient intake, digestibility, and production performance of high producing dairy cows. In this study, nine mid-lactating Holstein cows (body weight, 679 ± 124 kg; days in milk, 96 ± 22) were used in a triplicated 3 × 3 Latin square study. Within each square, each cow was randomly assigned to one of three treatments: control (typical barley-based diet in Western Canada), BPPCR (soybean and canola meal in the control diet replaced by BPPCR), and BPPCN (soybean and canola meal in the control diet replaced by BPPCN). Each period lasted for 21 d, with the first 14 d as an adaptation period. The total collection of feces and urine were conducted on six cows from two Latin squares. The results showed that there were no treatment effects on milk yield, milk composition, and nutrient intake and digestibility (P > 0.10). The nitrogen balance among the three treatment groups was not different either. In conclusion, replacing soybean meal and canola meal with blend-pelleted co-products did not affect the nutrient intake, digestibility, and production performance in high producing dairy cows.

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Aya Ismael, Victor Hugo Guevara-Oquendo, Basim Refat, Xin Feng, and Peiqiang Yu "Effects of feeding blend-pelleted co-products on nutrient intake, digestibility, and production performance of high producing dairy cows," Canadian Journal of Animal Science 101(2), 234-241, (21 September 2020). https://doi.org/10.1139/cjas-2020-0027
Received: 2 March 2020; Accepted: 2 September 2020; Published: 21 September 2020
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KEYWORDS
blend pelleted co-product
canola meal
carinata meal
Dairy cow
performance
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