title: In vitroevaluation of different varieties of maize fodder for their methane generation potential and digestibility with goat rumen liquor.
abstract: OBJECTIVE
  To evaluate the methane generation potential and digestibility of different (normal and three high-quality protein maize [HQPM]) varieties of maize fodder with goat rumen liquorin vitro.
  
  
  METHODS
  Methane production potential and digestibility of different varieties of maize fodder were tested inin vitrogas production test. Seven varieties of maize, four normal (HTHM 5101, DHM 117, HM 5, and Shaktiman/900 M Gold), and three high-quality protein (HQPM 5, HQPM 7, and HQPM 9/Vivek) were grown in different plots under the same environmental and agro-climatic conditions. Fodders were harvested at 45-50 days of sowing, and the representative samples of fodder from different varieties of maize were collected for analysis. Dried and grinded form of these maize fodder varieties was tested for gas, methane, and digestibility using goat rumen microflora inin vitrogas syringes.
  
  
  RESULTS
  Gas production (ml/g dry matter [DM]) was highest for HM5 variety (97.66, whereas lowest for HQPM 9 variety (64.22). Gas production (ml/g degraded DM [DDM]) and methane (%) were statistically similar in different varieties of maize fodder. The methane production expressed as ml/g DM and ml/g DDM was significantly (p<0.05) highest for HM 5 (14.22 and 26.62) and lowest for DHM 117 variety (7.47 and 14.13). Thein vitroDM digestibility (%) andin vitroorganic matter digestibility (%) varied from 47.48 (HQPM 5) to 52.05 (HQPM 9) and 50.03 (HQPM 7) to 54.22 (HM 5), respectively.
  
  
  CONCLUSIONS
  The present study concluded that DHM 117 maize variety fodder has lowest methane generation potential and incorporating it in the dietary regime of ruminants may contribute to lower methane production.
authors.affiliation: Department of Animal Nutrition, College of Veterinary Science & Animal Husbandry, U.P. Pt. Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura - 281 001, Uttar Pradesh, India.
authors.forename: Shalini
authors.initials: S
authors.lastname: Vaswani
authors.affiliation: Division of Nutrition Feed Resources and Product Technology, Central Institute for Research on Goats, Makhdoom, Farah - 281 122, Uttar Pradesh, India.
authors.forename: Ravindra
authors.initials: R
authors.lastname: Kumar
authors.affiliation: Department of Animal Nutrition, College of Veterinary Science & Animal Husbandry, U.P. Pt. Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura - 281 001, Uttar Pradesh, India.
authors.forename: Vinod
authors.initials: V
authors.lastname: Kumar
authors.affiliation: Department of Animal Nutrition, College of Veterinary Science & Animal Husbandry, U.P. Pt. Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura - 281 001, Uttar Pradesh, India.
authors.forename: Debashis
authors.initials: D
authors.lastname: Roy
authors.affiliation: Department of Animal Nutrition, College of Veterinary Science & Animal Husbandry, U.P. Pt. Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan, Mathura - 281 001, Uttar Pradesh, India.
authors.forename: Muneendra
authors.initials: M
authors.lastname: Kumar
keywords: digestibility and quality protein maize; in vitro; maize varieties; methane