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- Title
Evaluation of urea treated maize straw (Zea mays L.) as a feeding strategy for dairy cows in small-scale dairy systems.
- Authors
García-Martínez, Anastacio; López-González, Felipe; Prospero-Bernal, Fernando; Albarrán-Portillo, Benito; Arriaga-Jordán, Carlos Manuel
- Abstract
Objective: An experiment was carried out to evaluate the productive response of dairy cows to rations with maize straw (Zea mays L.) treated with urea. Design/methodology/approach: Nine cows were randomly selected from each unit and were assigned in a 3-3 Latin square design, repeated three times. The evaluated treatments were: T1-ad libitum maize straw, treated with 40 g urea kg-1 DM, in urea solution at 10% and 28 d for reaction under plastic - 1 kg maize/cow/day; T2-ad libitum maize straw, untreated, sprayed with a urea solution to add 26 g urea kg-1 DM at feeding - 1 kg maize/cow/day; and, T3-ad libitum untreated maize straw - 760 g soybean (Glycine max L.) meal as a source of crude protein (CP). Results: Crude protein content of maize straw, increased 96% when straw was treated with urea; moreover, the amount of structural carbohydrates decreased. No significant differences were observed for milk yield, live weight and body condition score (Pƒ-0.05). Limitations on study/implications: To see if the diet had the sufficient amount of protein is required analysis of milk urea nitrogen. Findings/conclusions: The addition of urea maize straw increases the nutritive quality of the straw, however, it did not improve the productive parameters of the cows.
- Subjects
STRAW; UREA; SOYBEAN; COWS; MAGIC squares; CORN; WHEAT straw
- Publication
Agro Productividad, 2020, Vol 13, Issue 2, p11
- ISSN
2448-7546
- Publication type
Article
- DOI
10.32854/agrop.vi.1628