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Researcher Kharage, Sagar Ashok
Advisor Damame, S. V.
Source KrishiKosh-Indian National Agricultural Research System
Content type Text
Educational Degree Master of Science (M.Sc.)
Publisher MPKV
File Format PDF
Language English
Subject Domain (in DDC) Technology ♦ Agriculture & related technologies
Subject Keyword Biochemical Constituents ♦ Agricultural Biochemistry
Abstract The present investigations were undertaken to evaluate the nutritional quality of ten genotypes of forage lucerne at pre-, 50 per cent and post-flowering stages in relation to dry matter, moisture, crude protein, total minerals, cell wall constituents, in vitro dry matter digestibility, in vitro protein digestibility, calcium, phosphorus and nitrate-nitrogen. The significantly highest dry matter content of 27.43 and 20.55 per cent was recorded by the lucerne genotype RLG-08-5 at the post-flowering and 50 per cent flowering stages, respectively. However, lucerne genotype RL-88 recorded the highest in vitro dry matter digestibility of 70.48 and 70.31 per cent at both the preflowering and 50 per cent flowering stages, respectively than other genotypes. The highest crude protein content was recorded at preflowering, followed by 50 per cent flowering and post-flowering stages. The highest crude protein content of 21.87 per cent was observed in the genotypes, Anand-2 and RLG-08-8 at pre-flowering stage whereas, the genotypes Anand-2 and RLG-08-4 recorded 21.00 percent crude protein content at 50 per cent flowering stage. The highest in vitro protein digestibility of 83.67 per cent was recorded by the genotype RLG-08-4 at pre-flowering stage and the genotype Anand-2 with 88.63 per cent at 50 per cent flowering stage. The in vitro protein digestibility was maximum at 50 per cent flowering stage than pre-flowering stage. However, overall decline was observed at post-flowering stage. Among the cutting stages, the fibre constituents viz., neutral detergent fibre, acid detergent fibre, hemicellulose and acid detergent lignin were lowest at pre-flowering stage and were further increased at 50 per cent flowering and post-flowering stages. Among the genotypes, RL-88 recorded the lowest neutral detergent fibre of 40.20 per cent and acid detergent fibre of 31.50 per cent at pre-flowering stage. The lowest acid detergent lignin of 4.80 per cent was recorded by RLG-08-2 at pre-flowering stage. Whereas, the cultivar Anand-2 recorded the lowest acid detergent lignin of 6.60 per cent at post-flowering stage. The highest total mineral content of 10.27 per cent was observed in the cultivar RL-88 followed by RLG-08-1 with 10.06 per cent at pre-flowering stage. The RLG-08-1 also recorded highest total mineral content at 50 per cent flowering and post-flowering stages than other genotypes. Among the cutting stages, the calcium content was the highest at post-flowering followed by 50 per cent and pre-flowering stages. The calcium content ranged between 1.13 to 1.54 per cent. The genotype RLG-08-5 recorded highest calcium content of 1.43 and 1.54 per cent at 50 per cent and post-flowering stages, respectively. However the maximum calcium content of 1.37 per cent was observed in the genotype RLG-08-6 at pre-flowering stage than other genotypes. The phosphorus content ranged between 0.22 to 0.42 per cent. The highest phosphorus content of 0.42 per cent was recorded by the cultivar RL-88 at pre-flowering stage. Overall decline in phosphorus content recorded from pre-flowering to other cutting stages. However, interactions were non-significant. The Ca:P ratio in all the genotypes was above the optimum ratio of 2. However, the lowest Ca:P ratio was found in the genotype RL-88 at all the three cutting stages. The nitrate-N content in all the genotype over cutting stages was far below the toxic level, which is 600-1000ppm. Based on the above analysis it was evident that the higher crude protein and in vitro dry matter digestibility was recorded at pre-flowering stage, higher dry matter and fibre components at post-flowering stage and higher in vitro protein digestibility at 50 per cent flowering stage. Considering CP, IVDMD, IVPD and Ca : P ratio, the cultivars Anand-2 and RL-88 were better followed by two promising genotypes, RLG-08-5 and RLG-08-1.
Educational Use Research
Education Level UG and PG
Learning Resource Type Thesis
Publisher Place Maharashtra
Size (in Bytes) 518.64 kB