Abstract
Objetive. Establish variations of nutritional composition and the contents of nitrates and nitrites in the Kikuyo grass (Cenchrus clandestinus (Hochst. Ex Chiov.) Morrone) from four veredas in the municipality of San Miguel de Sema: Peña Blanca, Sirigay, Sabaneca, and Quintoque, during dry and rainy seasons. were dairy production is the most significant economic activity. Material and methods. Nutritional characterization parameters, were associated a two-way ANOVA, using Tukey's as a multiple comparison test. Results. The results revealed in dry matter a high average content of total protein (TP) (23.48% +/- 3.71), neutral detergent fiber (60.86% +/- 3.03), with important DM degradability values at different time points (62.97% +/- 3.74 after 48 Hours). The report indicated decreased values of lignin (4.25% +/- 0.5), non-structural carbohydrates (11.44% +/- 2.43) and of the ratio of non-structural carbohydrates: rumen degradable protein (NSC:RDP) of 0.84 +/- 0.16. The levels of nitrates reached an average of 2977 ppm +/- 2061, which differed significantly according to the seasons and veredas, for the dry season in the different veredas the level of nitrated remained at 4728 ppm, a value 3.9 higher in comparison to the rainy season. The levels of nitrites showed average contents of 2.97 pm of DM, contents highly decreased to be potentially toxic. Conclusions. These results allowed us to establish a difference in the protein:energy relation as the limiting factor for milk production. Nitrate levels indicated as potentially toxic.
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Claims 11
Claim · model-written summary
Dry matter averaged 23.48% total protein.
Verbatim
e0“high average content of total protein (TP) (23.48% +/- 3.71)”
t0“Kikuyo grass”
Claim · model-written summary
Neutral detergent fiber averaged 60.86%.
Verbatim
e0“neutral detergent fiber (60.86% +/- 3.03)”
t0“Kikuyo grass”
Claim · model-written summary
Dry matter degradability after 48 hours was 62.97%.
Verbatim
e0“DM degradability values at different time points (62.97% +/- 3.74 after 48 Hours)”
t0“Kikuyo grass”
Claim · model-written summary
Lignin was reported at 4.25%.
Verbatim
e0“decreased values of lignin (4.25% +/- 0.5)”
t0“Kikuyo grass”
Claim · model-written summary
Nonstructural carbohydrates were 11.44%.
Verbatim
e0“non-structural carbohydrates (11.44% +/- 2.43)”
t0“Kikuyo grass”
Claim · model-written summary
The NSC:RDP ratio was 0.84.
Verbatim
e0“ratio of non-structural carbohydrates: rumen degradable protein (NSC:RDP) of 0.84 +/- 0.16”
t0“Kikuyo grass”
Claim · model-written summary
Nitrates averaged 2977 ppm.
Verbatim
e0“The levels of nitrates reached an average of 2977 ppm +/- 2061”
t0“Kikuyo grass”
Claim · model-written summary
Nitrate levels varied significantly by season and locality, reaching 4728 ppm in the dry season.
Verbatim
e0“which differed significantly according to the seasons and veredas, for the dry season in the different veredas the level of nitrated remained at 4728 ppm, a value 3.9 higher in comparison to the rainy season”
t0“Kikuyo grass”
Claim · model-written summary
Nitrite content averaged 2.97 pm of dry matter.
Verbatim
e0“The levels of nitrites showed average contents of 2.97 pm of DM”
t0“Kikuyo grass”
Claim · model-written summary
The protein to energy relation was identified as a limiting factor for milk production.
Verbatim
e0“a difference in the protein:energy relation as the limiting factor for milk production”
t0“Kikuyo grass”
Claim · model-written summary
Nitrate levels were considered potentially toxic.
Verbatim
e0“Nitrate levels indicated as potentially toxic”
t0“Kikuyo grass”