scholarly journals Influence of FMD vaccination stress on milk production in crossbred dairy cattle of Kerala

2021 ◽  
Vol 74 (1) ◽  
pp. 95-99
Author(s):  
Pramod S ◽  
R ThirupathyVenkatachalapathy ◽  
Lasna Sahib ◽  
Bibin Becha B
2018 ◽  
Vol 18 (03) ◽  
pp. 13572-13587 ◽  
Author(s):  
Patrick Ngono-Ema ◽  
◽  
L Lassila ◽  
A Missohou ◽  
K Marshall ◽  
...  

1975 ◽  
Vol 21 (3) ◽  
pp. 209-216 ◽  
Author(s):  
Ove Madsen ◽  
Knud Vinther

SUMMARYReproductive and production traits were studied in a crossbreeding experiment involving Red Danish cattle, Indian milch breeds and native Zebu cattle in various combinations.Frequency of abortions and postnatal mortality were higher for Red Danish than for Indian milch breeds and crossbreds, age at first calving was higher for Indian milch breeds than for other groups, calving interval was longer for purebreds than for crossbreds. Milk and butterfat production in first and second lactation increased with increasing proportion of genes from Red Danish cattle. The range of milk production in first lactation was from 987 kg for Indian milch breeds to 3445 kg for Red Danish imported from Denmark.The optimum proportion of genes from Red Danish for the environmental conditions prevailing in the present crossbreeding experiment is considered to be 60 to 80%.


2018 ◽  
Vol 35 (4) ◽  
pp. 1549-1560
Author(s):  
I. Al-Soaly ◽  
A. Ellithy ◽  
R. El-Bessoumy ◽  
M. Abd-Elkareem

2013 ◽  
Vol 4 ◽  
pp. 1
Author(s):  
R.C.A Berber ◽  
H.A.Z Biavatti ◽  
J. Fornazieri ◽  
G.C.M Berber ◽  
L.G.R. Sturaro ◽  
...  

Abstract: This study aimed  to evaluate the effect of lactation on first follicular wave surge of crossbred (Gir x Holstein) dairy cattle.  Nine multiparous crossbred dairy cattle were divided according to daily milk production (Group 1 = milk production higher than average, n = 5; Group 2 = milk  production  lower  than  average,  n  =  4).  From  calving  (Day  0)  until  divergence  of  first follicular wave, ovaries  was monitored daily by ultrasound exams to observed the follicular emergence,  growth  rate,  maximum  follicular  diameter,  day  of  follicular  divergence  and ovulation. The mean of milk production was 17.4 + 6.4 L/day (n= 9). Group 1 had higher daily milk production than Group 2 (21.8 + 3.8 L/day vs. 11.9 + 3.9 L/day, P< 0.001). Data of follicular emergence were similar in both groups (P >0.05). The growth  rate of first follicular surge was higher  in  Group  2  than  Group  1  (2.0  + 0.0  mm/day  vs  1.2  + 0.6  mm/day,  P<  0.05).  The maximum follicular diameter was 11.6  + 0.9 mm (Group 1) and 13.5  + 1.7 mm (Group 2); P< 0.05. The follicular divergence occurred earlier  in Group 1 than Group 2 (12.2  + 0.8 days vs 13.7 + 0.6 days; P< 0.05). One animal of Group 2 ovulated. In conclusion, data suggested that milk production had influence on ovarian follicular dynamic after calving.Keywords: Follicle, post-partum, lactation, dairy cattle


1951 ◽  
Vol 10 (4) ◽  
pp. 961-968 ◽  
Author(s):  
G. D. Miller ◽  
J. B. Frye ◽  
B. J. Burch ◽  
P. J. Henderson ◽  
L. L. Rusoff

2006 ◽  
Vol 2006 ◽  
pp. 86-86
Author(s):  
G Wellwood ◽  
J K Margerison

Mastitis is a complex disease causing inflammation of the udder, which has been estimated to cost the dairy farmer between £40-£117/cow per year (Stott et al., 2002). Economic loss occurs as a result of discarded milk, reduced milk yield and milk quality, increased vet costs and an increase in replacement costs. The objective of this study was to examine the effect of breed on the incidence of mastitis and somatic cell counts and milk production capabilities of Holstein Friesian, Brown Swiss and Brown Swiss crossbred cows.


2005 ◽  
Vol 48 (1) ◽  
pp. 385-392 ◽  
Author(s):  
D. J. Reinemann ◽  
L. E. Stetson ◽  
N. E. Laughlin ◽  
S. D. LeMire

1983 ◽  
Vol 66 (11) ◽  
pp. 2329-2336 ◽  
Author(s):  
G.S. Dufva ◽  
E.E. Bartley ◽  
A.D. Dayton ◽  
D.O. Riddell
Keyword(s):  

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