Effects of Supplementation of Nitrogen through Urea Molasses Multinutrient Block (UMMB) on the Performance of dairy Cows Fed with Good Quality Forage Based Diets While Using Rice Straw as Night Feeding

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dc.contributor.authorJayawickrama, D.R.
dc.contributor.authorMudannayake, D.C.
dc.contributor.authorJayasena, D.K.D.D.
dc.contributor.authorWeerasinghe, W.M.P.B.
dc.date.accessioned2021-05-17T09:10:14Z
dc.date.available2021-05-17T09:10:14Z
dc.date.issued2011
dc.description.abstractNote: See the PDF Version In Sri Lanka, the dairy industry is not well developed but has huge potential for the development. Among the constraints faced by the dairy industry, poor nutrition status of the animals has been identified as a major obstacle for the development of dairy industry in Sri Lanka. In general, animals are fed with poor quality roughages and concentrate feeding is very limiting thus, animal's genetic potential for the milk production has not been 'achieved in many cases. Poor quality roughages contain very little energy and protein, which is responsible for the lower production. Several methods have been reported in Sri Lanka to improve the nutritive value of low quality roughages. Among those, UMMB feeding is one of the easier methods. Hard solid blocks of UMMB provide readily available sources of energy and protein in the form of molasses and urea together with fiber and minerals (Saddul and Boodoo, 2001). Urea-molasses mineral block (UMMB) licks can improve the utilization of low, quality roughages by satisfying the requirement of the rumen microorganisms, creating a better environment for the fermentation of fibrous material and increasing production of microbial protein and volatile fatty acids (Wongnen, 2007). Urea, after hydrolyzing into ammonia in the rumen, provides a nitrogen source for the rumen microflora for their microbial protein synthesis. Molasses is a source of readily fermentable energy (Wongnen, 2007), which assists the growth of rumen microorganisms. It has been shown that animal performance has improved tremendously after the introduction of UMMB under field conditions (Kunju, 1986). This improvement was attributed to "supplementary" and "catalytic" effects of UMMB, as UMMB promotes an optimal ammonia level for efficient microbial activity in the rumen (Kunju, 1986). Several researchers have previously reported on the use of UMMB licks for supplementing the crop residue-based diet of large and small ruminants (Leng, 1983; Sansoucy, 1995) but very few studies have been conducted on the use of UMMB with good quality forage-based diets. Results of one such study by Weerasinghe et al. (2010) to evaluate the effects of supplementation of nitrogen through UMMB on the performance of dairy cows fed with good quality forage based diets, highlighted that UMMB supplementation significantly increased milk yield and yields of milk fat, protein, and SNF and UMMB supplemented animals had a significantly higher body weight than those fed with control diets; it suggests that the improvement of production and performance could be due to improved digestibility of the basal diet. However, no information available on the use of straw as night feeding to replace the amount of grass supplied in the day time. Thus, the objective of this study was to 137 Proceedings of lite Research Symposium of Uva Wellassa University, December 15-16, 2011 Evaluate the effects of supplementation of UMMB to dairy cows fed with good quality forage based diets while supplying rice straw as night feeding.en_US
dc.identifier.issn22359877
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/6738/137-2011-Effects%20of%20Supplementation%20of%20Nitrogen%20through%20Urea%20Molasses.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Srilankaen_US
dc.subjectFood Scienceen_US
dc.subjectAgricultureen_US
dc.subjectAnimal Production Technologyen_US
dc.subjectFood Technologyen_US
dc.titleEffects of Supplementation of Nitrogen through Urea Molasses Multinutrient Block (UMMB) on the Performance of dairy Cows Fed with Good Quality Forage Based Diets While Using Rice Straw as Night Feedingen_US
dc.typeOtheren_US
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