A physically based calving model applied to marine outlet glaciers and implications for the glacier dynamics [PDF]
, 2010 We present results from numerical ice-flow models that include calving criteria based on penetration of surface and basal crevasses, which in turn is a function of longitudinal strain rates near the glacier front.
Vieli, Andreas +22 more
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Processes of crevasse formation and the dynamics of calving glaciers : a study at Breiđamerkurjökull [PDF]
, 2009 A new model proposed by Benn et al. (2006, 2007) explains the dynamics of calving glaciers based on a new sliding law and a calving criterion modified from a crevasse depth model. In this thesis three key elements of this model are tested: 1) the role
Mottram, Ruth
core +2 more sources
Scientific Papers Animal Science and Biotechnologies, 2023 The aim of this paper was to study the influence of calving interval on the number of somatic cells from milk in Romanian Black and White cows. The study was conducted on a total of 125 lactations from 92 cows.
Simona Baul +7 more
doaj
Milk production, age at first calving, and calving-toconception interval in Holstein, Brown Swiss, and Holstein x Brown Swiss cows [PDF]
Revista de la Facultad de Ciencias AgrariasThe objective of this study was to evaluate milk production, age at first calving, and calving to conception interval in Holstein, Brown Swiss, and Holstein x Brown Swiss crossbred cows within a pasture-based dairy system in Argentina. The increasing
Victoria Cañete +4 more
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Analysis of non-genetic factors affecting calving difficulty in the Czech Holstein population
Czech Journal of Animal Science, 2008 The objective of this study was to analyze the effects of non-genetic factors affecting calving difficulty in the Holstein population of the Czech Republic for subsequent compilation of the model for genetic evaluation as well as for herd management ...
M. Fiedlerová +7 more
doaj +1 more source
The effects of maternal calving date and calving interval on growth performance of beef calves
South African Journal of Animal Science, 2000 This study was undertaken to investigate the growth performance of calves born to dams with different calving dates and calving intervals. Early calving dams produced calves with the lowest birth weights, the highest actual weaning weights and the highest pre-breeding heifer weights.
MacGregor, R.G., Casey, N.H.
openaire +3 more sources
Insemination factors affecting the conception rate in seasonal calving Holstein-Friesian cows [PDF]
, 2003 peer-reviewedDifferences in conception rate to first service between artificial inseminations (AI) carried out by commercial AI operators (CAI) or do-it-yourself operators (DIY), between natural service (NAT) and AI, between different AI sires, and ...
Mee, John F +13 more
core +1 more source
Phenotypic effects of calving ease on the subsequent fertility and milk production of dam and calf in UK Holstein-Friesian heifers [PDF]
, 2011 The effect of calving ease on the fertility and production performance of both dam and calf was studied in approximately 50,000 and 10,000 UK Holstein-Friesian heifers and heifer calves, respectively. The first objective of this study was to estimate the
Coffey, M.P. +14 more
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Reproductive qualities of dairy cows at different levels of milk yield
Аграрная наука Евро-Северо-Востока, 2021 The article presents the results of the analysis of the reproductive ability of cows depending on the level of their milk productivity. The studies were conducted in the Republic of Mari El on cows of the Holstein black-and-white breed (n = 3828).
Svetlana V. Titova
doaj +1 more source
Desempeño reproductivo de vacas Gyr lechero en un sistema a pastoreo del trópico ecuatoriano
La Técnica: Revista de las Agrociencias, 2020 Reproductive performance of Gyr dairy cows in a grazing system of the Ecuadorian Tropic Resumen El objetivo del trabajo fue evaluar la eficiencia reproductiva en vacas lecheras Gyr en condiciones de pastoreo del trópico ecuatoriano.
Alicia Esther Farfán Talledo +4 more
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