Open Access
Research
(Published
online: 24-05-2016)
11.
Estimation of metabolic heat production
and methane emission in Sahiwal and Karan Fries heifers under
different feeding regimes -
Sunil Kumar, S. V. Singh, Priyanka Pandey, Narendra Kumar and
O. K. Hooda
Veterinary World, 9(5): 496-500
doi:
10.14202/vetworld.2016.496-500
Sunil Kumar:
Dairy Cattle Physiology Division, ICAR-National Dairy Research
Institute, Karnal, Haryana, India; dr.sunil8507@gmail.com
S. V. Singh:
Dairy Cattle Physiology Division, ICAR-National Dairy Research
Institute, Karnal, Haryana, India; sohanvir2011@gmail.com
Priyanka Pandey:
Dairy Cattle Physiology Division, ICAR-National Dairy Research
Institute, Karnal, Haryana, India; drpriyankapandey12@gmail.com
Narendra Kumar:
Livestock Production and Management Division, ICAR-National
Dairy Research Institute, Karnal, Haryana, India;
narendrakumarvet@gmail.com
O. K. Hooda:
Dairy Cattle Physiology Division, ICAR-National Dairy Research
Institute, Karnal, Haryana, India; hoodaomkanwar1@gmail.com
Received: 16-01-2016, Accepted: 12-04-2016, Published online:
24-05-2016
Corresponding author:
Sunil Kumar, e-mail: dr.sunil8507@gmail.com
Citation:
Kumar S, Singh SV, Pandey P, Kumar N, Hooda OK (2016) Estimation
of metabolic heat production and methane emission in Sahiwal and
Karan Fries heifers under different feeding regimes,
Veterinary World, 9(5):
496-500.
Abstract
Aim:
The objective of this study was designed to estimate the
metabolic heat production and methane emission in Sahiwal and
Karan Fries (Holstein-Friesian X Tharparkar) heifers under two
different feeding regimes, i.e., feeding regime-1 as per the
National Research Council (NRC) (2001) and feeding regime-2
having 15% higher energy (supplementation of molasses) than NRC
(2001).
Materials and Methods:
Six (n
= 6) healthy heifers of Sahiwal and Karan Fries with 18-24
months of age were selected from Indian Council of Agricultural
Research-National Dairy Research Institute, Karnal. An initial
15 days was maintained under feeding regime-1 and feeding
regime-2 as adaptation period; actual experiment was conducted
from 16th day onward for next 15 days. At the end of
feeding regimes (on day 15th and 16th),
expired air and volume were collected in Douglas bag for two
consecutive days (morning [6:00 am] and evening [4:00 pm]). The
fraction of methane and expired air volume were measured by
methane analyzer and wet test meter, respectively. The oxygen
consumption and carbon dioxide production were measured by iWorx
LabScribe2.
Results:
The heat production (kcal/day) was significantly (p<0.05) higher
in feeding regime-2 as compared to feeding regimen-1 in both
breeds. The heat production per unit metabolic body weight was
numerically higher in feeding regime-1 than feeding regime-2;
however, the values were found statistically non-significant
(p>0.05). The energy loss as methane (%) from total heat
production was significantly (p<0.05) higher in feeding
regime-1. The body weight (kg), metabolic body weight (W0.75),
and basal metabolic rate (kcal/kg0.75) were
significantly (p<0.05) higher in feeding regime-2 in both
breeds.
Conclusions:
This study indicates that higher energy diet by supplementing
molasses may reduce energy loss as methane and enhance the
growth of Sahiwal and Karan Fries heifers.
Keywords:
feeding regimes, heat production, Karan Fries, methane emission,
Sahiwal.
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