Effect of timing of artificial insemination after synchronization of ovulation on reproductive performance in Holstein dairy cows

2012 ◽  
Vol 45 (2) ◽  
pp. 411-416
Author(s):  
Tahir Bayril ◽  
Orhan Yilmaz
Keyword(s):  
Dairy Cows ◽  
Reproductive Performance ◽  
Artificial Insemination ◽  
Holstein Dairy Cows

Effect of timing of first clinical mastitis occurrence on lactational and reproductive performance of Holstein dairy cows

2004 ◽  
Vol 80 (1-2) ◽  
pp. 31-45 ◽  
Author(s):  
J.E.P Santos ◽  
R.L.A Cerri ◽  
M.A Ballou ◽  
G.E Higginbotham ◽  
J.H Kirk
Keyword(s):  
Dairy Cows ◽  
Reproductive Performance ◽  
Clinical Mastitis ◽  
Holstein Dairy Cows

scholarly journals Comparison of reproductive performance in lactating dairy cows bred by natural service or timed artificial insemination

2009 ◽  
Vol 92 (11) ◽  
pp. 5456-5466 ◽  
Author(s):  
F.S. Lima ◽  
C.A. Risco ◽  
M.J. Thatcher ◽  
M.E. Benzaquen ◽  
L.F. Archbald ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Reproductive Performance ◽  
Artificial Insemination ◽  
Lactating Dairy Cows ◽  
Timed Artificial Insemination ◽  
Natural Service

Association of polymorphisms in the IGF-I, GHR and STAT5A genes with serum IGF-I concentration and reproductive performance of Holstein dairy cows

2019 ◽  
Vol 211 ◽  
pp. 106206
Author(s):  
Pedro Augusto Silva Silveira ◽  
W.R. Butler ◽  
Thaís Casarin da Silva ◽  
Carlos Castilho Barros ◽  
Marcio Nunes Corrêa ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Reproductive Performance ◽  
Igf I ◽  
Holstein Dairy Cows

scholarly journals Comparing the Effect of Oral Supplementation of Vitamin E, Injective Vitamin E and Selenium or Both during Late Pregnancy on Production and Reproductive Performance and Immune Function of Dairy Cows and Calves

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Farokh Kafilzadeh ◽  
Habibollah Kheirmanesh ◽  
Hamed Karami Shabankareh ◽  
Mohhamad Reza Targhibi ◽  
Elaheh Maleki ◽  
...  
Keyword(s):  
Vitamin E ◽  
Immune Function ◽  
Dairy Cows ◽  
Reproductive Performance ◽  
Late Pregnancy ◽  
Blood Samples ◽  
Oral Supplementation ◽  
Significant Difference ◽  
Reproduction Performance ◽  
Holstein Dairy Cows

The object of this study was to determine the effect of prepartum supplementation of vitamin E with or without injective vitamin E and selenium (Se) on productive and reproductive performances and immune function in dairy cows. Sixty multiparous Holstein dairy cows were divided randomly into three groups at the end of gestation. Cows in each group received one of three treatments: (1) a single intramuscular (im) injection of vit. E + selenium 3 weeks prepartum; (2) daily supplementation of oral vit. E given from 3 weeks prepartum to parturition; (3) injective vit. E + Se with daily supplementation of oral vit. E. Blood samples were collected from cows at calving and from calves at 0 and 7 days of age. Concentration of IgG in serum of cows and calves as well as in colostrum was determined. No significant differences among treatments occurred in the concentrations of IgG, animal, and calf production and reproduction performance. Due to the lack of significant difference between injection and oral supplementation, it is recommended to replace the injection with oral supplementation.

Sign in / Sign up

Export Citation Format

Share Document