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Seasonal prevalence of gastrointestinal nematodes of beef calves grazed on irrigated pastures in the lower Sacramento Valley of California.
1988
Charles T.P. | Baker N.F.
Impact of prepartum body condition score loss on metabolic status during the transition period and subsequent fertility in Brown Swiss dairy cows Texto completo
2019
Çolakoğlu, Hatice Esra | Yazlık, Murat Onur | Pekcan, Mert | Kaya, Ufuk | Kaçar, Cihan | Vural, Mehmet Rıfat | Kurt, Serdal | Yildirim, Merve Menekse | Bas, Ahmet | Küplülü, Şükrü
Impact of prepartum body condition score loss on metabolic status during the transition period and subsequent fertility in Brown Swiss dairy cows Texto completo
2019
Çolakoğlu, Hatice Esra | Yazlık, Murat Onur | Pekcan, Mert | Kaya, Ufuk | Kaçar, Cihan | Vural, Mehmet Rıfat | Kurt, Serdal | Yildirim, Merve Menekse | Bas, Ahmet | Küplülü, Şükrü
The objectives of this study were to determine the role of a fall in pre-calving body condition score (BCS) in postpartum metabolic status and reproductive outcomes, and gauge the indicativeness of blood metabolites during the transition period. Cows were grouped based on BCS loss between days −14 ±3 and 0 relative to calving. Cows that lost no BCS were the BCS control group (BCS-C), cows that lost 0.25 BCS points the low BCS loss group (BCS-L), and those that lost 0.5 points or more the high BCS loss (BCS-H) group. Blood was taken on days −14 ±3, 3, 14, and 30 ±4 for determination of comprehensive metabolic panel biomarker levels. Beta-hydroxybutyric acid (BHBA) levels were quantified on postpartum examination days. Vaginal discharge scores, ovarian activity on day 30 ±4, and subsequent fertility parameters were evaluated. The BCS-H cows had lower mean Ca concentrations before calving and on day 3, when the group’s BHBA and CK were higher (P < 0.05); on day 14 they had higher AST concentrations (P < 0.05). The BCS-L cows had greater bilirubin levels (P < 0.05). The BCS-H cows had lower cyclicity and higher endometritis rates. First service pregnancy rates were 50%, 50%, and 61.9%, open days 96.8, 95.75, and 89.2, and overall pregnancy rates 56.25%, 65%, and 80.95 % in the BCS-H, BCS-L, and BCS-C groups, respectively. Prepartum BCS loss of ≥ 0.5 points could be associated with Brown Swiss cow low Ca and BHBA concentrations early postpartum, and with subsequent uterine health and overall pregnancy rate. Prepartum Ca concentration might be a prognostic biomarker for postpartum metabolic status and reproductive outcomes.
Mostrar más [+] Menos [-]Impact of prepartum body condition score loss on metabolic status during the transition period and subsequent fertility in Brown Swiss dairy cows Texto completo
2019
Çolakoğlu Hatice Esra | Yazlık Murat Onur | Pekcan Mert | Kaya Ufuk | Kaçar Cihan | Vural Mehmet Rıfat | Kurt Serdal | Yildirim Merve Menekse | Bas Ahmet | Küplülü Şükrü
The objectives of this study were to determine the role of a fall in pre-calving body condition score (BCS) in postpartum metabolic status and reproductive outcomes, and gauge the indicativeness of blood metabolites during the transition period.
Mostrar más [+] Menos [-]Seasonal abundance of adult ixodid ticks infesting cattle belonging to resource-limited farmers in the north-eastern Free State Province of South Africa
2002
Hlatshwayo, M. | Mbati, P.A. | Dipeolu, O.O. (Northern Univ., Phuthaditjhaba (South Africa). Parasitology Research Programme)
Diversity, seasonality and sites of attachment of adult ixodid ticks on dogs in the central region of the Free State Province, South Africa
2001
Jacobs, P.A.H. | Fourie, L.J. | Kok, D.J. (Free State Univ., Bloemfontein (South Africa). Zoology and Entomology Dept.) | Horak, I.G.
Способ повышения вocпроизводительной способности быков с использованием фитогормона эпибрассинолид
2009
Lebedev, S.G., Vitebsk State Academy of Veterinary Medicine (Belarus)
Addition of 0,01 mg/ml epibrassinolid in 100 ml laktoza-gliceryn-yolky thinner during the autumn-winter period has resulted, on the average on groups of bulls, to mobility increase sperms on 10,6 %, the survival rate sperms has increased by 17,9 %, the quantity pathological sperms has decreased on 32,5 %, safety sperm cover has increased by 4,5 %, resistance sperms has raised on 15,6 %, discoloration time blues has decreased on 8,5 %, has allowed to raise percent insemination cows and the calf on 12%
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