Abstract
The objective of this study was to evaluate the effect of two defoliation intervals on the morphological characteristics of the experimental group. Chemical composition characteristics of a Tanzania grass pasture (Panicum maximum) and the performance of crossbred cows on intermittent grazing were examined. The digestibility of the dry matter, the digestibility of the organic matter fibrous, the voluntary dry matter intake and the voluntary intake of the organic matter fibrous were also determined. Milk production of cows was obtained in two daily milks. The levels of fat, protein, lactose, liquid energy and total milk solids were also quantified. The treatments consisted of evaluations of two pasture management strategies: 95% interception of photosynthetically active radiation and pasture managed with 30 days of defoliation interval. The study thus revealed that management causes differences in the chemical composition of Tanzania grass, but does not allow individual productive increases. Management based on IL 95% leads to higher milk production per unit area. Key words: Cattle dung, environmental sustainability, overcoming dormancy, rumen.  
Highlights
A balanced, good quality diet is a basic condition for the success of dairy farming
The treatments consisted of evaluations of two pasture management strategies: 95% interception of photosynthetically active radiation and pasture managed with 30 days of defoliation interval
The study revealed that management causes differences in the chemical composition of Tanzania grass, but does not allow individual productive increases
Summary
A balanced, good quality diet is a basic condition for the success of dairy farming. Traditionally, national production focused on the use of pasture-based production systems, with little planning and application of technologies, which results in low productivity and higher costs.Thus, the nutritive value of forages is considered one of the most important factors in the evaluation of pastures, since it is the first determinant of nutrients necessary to meet maintenance requirements, besides having a high correlation with animal production; this productive response is related to the consumption, digestibility and Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License2174 Afr. J. Agric. Res.
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