1Present address: Dairy Cattle Nutrition Division, ICAR-National Dairy Research Institute, Karnal-132 001, India
Division of Animal Nutrition, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu R.S. Pura, Jammu-181 102, India
*Corresponding author: mokshtagupta1407@gmail.com; Present address: Division of Animal Nutrition, ICAR-Indian Veterinary Research Institute, Izatnagar-243 122, India
Online published on 26 February, 2019.
The objective of the study was to investigate the effect of plane of nutrition on purine derivatives excretion in goats. Eighteen non-descript adult bucks were randomly divided into three equal groups in a randomized block design, and were fed either a control diet (CON), or diets with 40% protein restriction (PR) and 40% energy restriction (ER), respectively, for a period of one month. A metabolism trial was conducted at the end of the feeding trial. Spot urine samples were collected at weekly intervals and analyzed for various purine derivative parameters. The results indicated lower (P<0.01) intake of DM, OM and TDN in ER group along with higher (P<0.01) digestibility of DM and CP. A lower (P<0.01) CP intake and its digestibility (P<0.01) was observed in PR group with higher values in ER group. The concentration of purine derivatives in spot urine samples and purine derivatives: creatinine index (PDC) was found lower (P<0.01) in ER group as compared to CON and PR group. It is concluded that PDC index appears to be an effective indicator of energy deficiency in the ration of goats; however it remained unaffected by the dietary protein deficiency employed in the current study.
Goats, PDC index, Plane of nutrition, Purine derivatives, Spot urine
