Results 251 to 260 of about 11,071 (289)

Effect of lameness on the calving-to-conception interval in dairy cows

Journal of the American Veterinary Medical Association, 2001
Abstract Objective—To examine the relationship between lameness and the duration of the interval from calving to subsequent conception in lactating dairy cows. Design—Cohort study. Animals—837 dairy cows. Procedure—Cows affected with lameness were classified into 1 of 4 groups on the basis of types of disease or ...
J, Hernandez, J K, Shearer, D W, Webb
openaire   +2 more sources

Influence of suckling on calving interval of N'dama cows in the Gambia

Tropical Animal Health and Production, 1995
The inhibitory influence of the suckling stimulus on resumption of cyclicity post partum was elucidated for dairy cows by Oxenreider (1968) and for beef cattle by Short et al. (1972). In the traditionally managed herds in West Africa calves suckle their dam initially to stimulate milk let down, the cows are then milked and the calf is allowed to suckle
F B, Sanyang, H G, Wagner, D J, Clifford
openaire   +2 more sources

Breed differences in calving interval in the humid Mexican tropic

Tropical Animal Health and Production, 2009
The objective of this study was to evaluate the influence of breed, breed and sex of the calf, farm, calving number (CN), type of calving, and their interactions on CI using records from four different beef breeds performing in the humid tropical environment of Mexico. The influence of these factors on CN was also evaluated. CI and CN varied with farm,
Aída Lorena, Murillo Medina, Alejandro, Córdova-Izquierdo, Ramón, Soriano Robles, Germán David, Mendoza Martínez, Héctor, Castillo-Juárez   +4 more
openaire   +2 more sources

Trends in calving ages and calving intervals for Iranian Holsteins in Fars province, southern Iran

Tropical Animal Health and Production, 2009
To determine trends in calving ages and calving interval as measures of reproductive performance in Iranian Holsteins in Fars province, southern Iran during 2000-2005.Data about birth dates and previous calving dates for cows which calved between 21 March 2004 to 20 March 2005 were retrieved from the database of the Agricultural Jihad Organization of ...
Maryam, Ansari-Lari, Maryam, Rezagholi, Mahdie, Reiszadeh   +2 more
openaire   +2 more sources

Reproductive Performance in Cows with Extended Calving Interval*

Reproduction in Domestic Animals, 2000
Contents The effects of increased calving intervals on reproduction were studied in two herds. In Herd 1 cows were managed for 12‐ or 15‐month calving intervals and in Herd 2 for 12‐ or 18‐month intervals. Data from the study revealed that managing cows for a longer calving interval improved the fertility.
B Larsson, B Berglund
openaire   +1 more source

The generation interval and season of birth do not affect age at first calving, birth weight and calving interval of Mozambican Angoni cattle

Tropical Animal Health and Production
The Angoni cattle breed's contribution to the country's economy is crucial, as it significantly contributes to animal draught power and meat supply, despite not being primarily used for milk production. Despite its importance, there is a lack of comprehensive research conducted to characterize this breed.
Leonel António Joaquim, Abílio Paulo Changule, Maria da Glória Taela, Mariana Novela, Sónia Carlitos Pinto, Custódio Gabriel Bila   +5 more
openaire   +2 more sources

Components of a herd calving interval

Veterinary Record, 1974
R J, Esslemont, P R, Ellis
openaire   +2 more sources

Iceberg Calving: Regimes and Transitions

Annual Review of Earth and Planetary Sciences, 2023
Richard B Alley, Jeremy N Bassis, Byron R Parizek   +2 more
exaly  

Repeatability of Calving Intervals in Brahman Cows

Journal of Animal Science, 1979
Nelia Peña de Borsotti, O. Verde, D. Plasse   +2 more
openaire   +1 more source

Maintenance of calving interval in superovulated-cattle

Theriogenology, 1990
C.G. Dorn, L.A. Martin, J.M. Farr, D.C. Kraemer   +3 more
openaire   +1 more source