Management Considerations from Parturition to the End of the Voluntary Waiting Period to Optimize Health and Reproductive Performance

2011 ◽  
pp. 1-6
Author(s):  
Carlos A. Risco
Keyword(s):  
Reproductive Performance ◽  
Waiting Period ◽  
Voluntary Waiting Period ◽  
Optimize Health

Effects of calving season on the voluntary waiting period and reproductive performance of Holstein cows in the tropical savannah

2017 ◽  
Vol 49 (6) ◽  
pp. 1179-1185
Author(s):  
Thiago Vilar Silva ◽  
Benner Geraldo Alves ◽  
Kele Amaral Alves ◽  
Regiani Nascimento Gagno Porto ◽  
Maria Lucia Gambarini
Keyword(s):  
Reproductive Performance ◽  
Holstein Cows ◽  
Waiting Period ◽  
Calving Season ◽  
Voluntary Waiting Period

1270 Profitability of dairy cows managed for first service with the Double-Ovsynch or Presynch-Ovsynch protocol and different duration of the voluntary waiting period

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 612-613
Author(s):  
M. L. Stangaferro ◽  
R. Wijma ◽  
M. Masello ◽  
G. E. Granados ◽  
J. O. Giordano
Keyword(s):  
Dairy Cows ◽  
Waiting Period ◽  
Voluntary Waiting Period

scholarly journals Records of performance and sanitary status from a dairy cattle herd in southern Brazil

2011 ◽  
Vol 31 (1) ◽  
pp. 01-09 ◽  
Author(s):  
Cláudio E. F. Cruz ◽  
Djeison L. Raymundo ◽  
Cristine Cerva ◽  
Saulo P. Pavarini ◽  
André G. C. Dalto ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Reproductive Performance ◽  
Cattle Herd ◽  
Lactation Period ◽  
Mean Values ◽  
Cattle Diseases ◽  
Dairy Cattle Herd ◽  
The Mean ◽  
The Impact ◽  
Voluntary Waiting Period

Over the last decades, the emphasis on the health of dairy cows has changed from an individual to a herd level. In this scenario, the role played by the recording system and its interpretation by veterinarians has gained primordial importance. The records of productive and reproductive performance and of sanitary status from a southern Brazilian dairy cattle herd have been presented and discussed. The period of study was 2000-2009. Mean values per lactation period were 349D 8436M 290F 275P 201SCS (D: days in lactation, M: kg of milk yield, F: kg of fat, P: kg of protein and SCS: somatic cell score in 1000 cells/ml of milk). Major indexes of reproductive efficiency included age at first calving (31 months), services per conception (2.1), intercalving interval (428 days), calving to conception interval (146 days), mean annual rates of parturitions (76.2%), fetal losses (9.8-19.0%), and stillbirths (3.6%), apart of voluntary waiting period (94 days). Main information on sanitary status of the herd was associated with the mean prevalence of common disorders of dairy cattle such as anaplasmosis (29.8%), mastitis (27.8%), digital diseases (26.3%), ovarian cysts (21.3%), placental retention (19.7%), postpartum uterine infections (10.6%), and calf diarrhea (23.7%) and pneumonia (16.8%), among others. In addition, culling reasons (low reproductive performance [56.3%] and udder/mastitis problems [33.6%]), causes of cattle deaths (anaplasmosis [16.4%] and leukosis [11.4]), and the impact of cattle diseases such as tuberculosis, leukosis, and neosporosis on the herd have also been presented and succinctly discussed. Numbers between brackets represent rates accumulated in the 10-year period.

scholarly journals REDUCTION OF THE VOLUNTARY WAITING PERIOD BY USE OF HORMONAL PROTOCOLS AND FIXED-TIME ARTIFICIAL INSEMINATION (FTAI) IN DAIRY COWS

2012 ◽  
Vol 17 (3) ◽  
Author(s):  
Miriane Suplicy ◽  
Haroldo Suplicy Filho ◽  
Luiz Ernandes Kozicki ◽  
José Carlos dos Santos Breda ◽  
Romildo Romualdo Weiss ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Pregnancy Rate ◽  
Artificial Insemination ◽  
Post Partum ◽  
Fixed Time ◽  
Estradiol Benzoate ◽  
Control Group ◽  
Waiting Period ◽  
Equine Chorionic Gonadotropin ◽  
Voluntary Waiting Period

ABSTRACT: The aim of this study was to reduce the waiting voluntary period in dairy cows by administration of two different hormonal protocols for estrus synchronization and fixed-time artificial insemination (FTAI). One hundred twenty-eight Holstein dairy cows were studied. Three groups (G) were carried out: G1 (44 treated), G2 (34 treated) and G3 (50 as control). In the treated cows the following hormonal protocols was applied between 40 and 45 days post partum: G1- Day 0 (D0) - bovine intravaginal device containing progesterone (P4) plus 1.0 mg of estradiol benzoate (EB), D8 - removal of the P4, plus 0.5 mg of cloprostenol plus 400 IU of equine chorionic gonadotropin (eCG), D9 - 1.0 mg of EB and FTAI after 36 hours. G2 - D0 - P4 intravaginal plus 50 mcg of gonadotropin-releasing hormone (GnRH), D7 - removal of the P4 plus cloprostenol plus 400 IU eCG; D9 - 50 mcg of GnRH and FTAI 16 hours after. G3 – Control group inseminated 12 hours after the visual estrus. Results: G1 and G2 were inseminated (FTAI) respectively in the D55.5 and D56.8 after calving, while the G3 in the D84.5 (p<0.01).  The pregnancy rate in the G1, G2 and G3 was respectively 47.0, 46.1 and 35.8% (p>0.05).  In Conclusion: there was significant reduction in the voluntary waiting period in treated cows and higher pregnancy rate although not significant.

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