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Abstract

In cattle, heat stress impairs ovarian function and early embryonic development, leading to reduced reproductive performance, especially in dairy cows. This adverse effect is observed in different European countries including temperate climates. In France, analysis of insemination results over a...

Author(s)
Picard-Hagen, N.; Gayrard, V.; Gachet, A.; Guingal, A.; Garrigue, M.; Floch, S.; Saint-Blancat, M.; Lacaze, S.; Raboisson, D.
Publisher
Newsmed, Paris, France
Citation
Point Vétérinaire, 2018, 49, Numéro spécial, pp 100-106
AbstractFull Text

Author(s)
Philippe, M.; Bretagne, T. de
Publisher
Interbull Centre, Uppsala, Sweden
Citation
Interbull Bulletin, 2013, No.47, pp 131
Abstract

An analysis of connectedness in the French Holstein cattle population was carried out. The study was motivated by the fact that AI bulls are evaluated at the national level whereas they are usually progeny tested only in the region of their AI stud. Connectedness among AI studs was measured by the...

Author(s)
Hanocq, E.; Boichard, D.
Citation
Genetics, Selection, Evolution, 1999, 31, 2, pp 163-176
Abstract

Holstein (n = 71) and Normande (n = 32) heifers born during 1986-88 were allocated to moderate- (M) and high (H) feed energy formulations from birth to a mean age of 14(±1) months. Feed restriction in milk, concentrates and maize silage was equal to 400 units for milk production. Liveweight gains...

Author(s)
Troccon, J. L.; Muller, A.; Peccatte, J. R.; Fargetton, M.
Citation
Annales de Zootechnie, 1997, 46, 1, pp 27-41
Abstract

7, 273, 713 first inseminations were carried out in 1967 by 2289 inseminators using semen of 3332 bulls; 67% of ♀♀ at least 24 mth of age were inseminated. The increase in number of inseminations over the number in 1966 was 2.99%. Frozen semen was used for 83.7% of inseminations. The over-all 60-...

Author(s)
ROSSIGNOL, Y.; MIGNON, F.
Citation
Elevage et Insemination, 1968, pp 24 pp.
Abstract

7, 482, 912 first inseminations were carried out in 1968 by 2347 inseminators; approx. 2/3 of all ♀♀ at least 24 mth of age were inseminated. Frozen semen was used for 96.18% of inseminations. Data on the inseminations carried out from each centre and comparisons between breeds are tabulated;...

Author(s)
DUPLAN, J. M.; MIGNON, F.
Citation
Elevage et Insemination, 1969, pp 32 pp.
Abstract

7, 520, 000 cows were inseminated, representing an increase over 1968 of only 1% v 4 or 5% increases during 1966-68. Inseminations per breed are tabulated, and show notable increases over 1968 for Holstein (23%), Charoláis (12%) and Aquitaine Blond (9%), and decreases for Breton Black Pied (28%),...

Author(s)
CANGUILHEM, A.
Citation
Elevage et Insemination, 1970, pp 3-11

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