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Effect of feeding transgenic cottonseed (Bt-cry1Ac gene) on nutrient utilization,production performance and blood biochemical status in lactating dairy cows

Indian Agricultural Research Journals

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Title Effect of feeding transgenic cottonseed (Bt-cry1Ac gene) on nutrient utilization,production performance and blood biochemical status in lactating dairy cows
 
Creator MOHANTA, RANJAN K
SINGHAL, K K
TYAGI, A K
RAJPUT, Y S
 
Subject Biosafety; Bt protein; Digestibility; Feed intake; Transgenic cottonseed
 
Description The study was made to compare the effect of transgenic (Bt, Cry1Ac) linted whole cottonseed (WCS) on nutrient intake and utilization, milk production and biosafety with that of isogenic (on Bt) WCS. Lactating multiparous cows (16) adapted to non Bt cottonseed based concentrate mixture (40%) were divided randomly in 2 groups of 8 each. Non- Bt group (control) continued on same ration while in Bt group, non-Bt WCS in concentrate mixture was replaced with Bt WCS in a feeding trial of 4 weeks. BW gain, nutrient intake and digestibility, milk yield and composition, body condition score, and blood parameters did not vary significantly between the groups. Non detection of Bt protein (Cry1Ac) in milk or blood plasma indicated the degradation of the protein in the gastrointestinal tract of cows. It was concluded that Bt (Cry1Ac) cottonseed is as safe and nutritious as conventional cottonseed, when fed to lactating crossbred cows for 4 weeks.
 
Publisher Directorate of Knowledge Management in Agriculture
 
Contributor —
 
Date 2010-12-13
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
—
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/2415
 
Source The Indian Journal of Animal Sciences; Vol 80, No 12 (2010)
0367-8318
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/2415/572
 
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