Genetic associations between reproductive and linear-type traits of Holstein cows in Brazil
Revista Brasileira de ZootecniaThis study aimed to estimate heritability, genetic, and residual correlations between reproductive traits such as age at first calving, calving interval, dry period, and first service period and linear type traits measured in Holstein cows born between ...
Tatiana Prestes Almeida +6 more
doaj +1 more source
AGE AT FIRST CALVING IN NELORE CATTLE
, 2007 O presente estudo de 118 dados de idade à primeira cria de criação de Nelore da Fazenda Regional de Criação do Ministério da Agricultura, Goiânia - Goiás, mostrou uma média 50,49 +/- 0,90 meses.
Pato, José Magno +1 more
openaire +1 more source
Boreas, EarlyView.We present a 25‐stage reconstruction of the ice‐flow pattern evolution of the Scandinavian Ice Sheet based on mapping and analysis of ~240 000 subglacial lineations and lineation fields across Norway, Sweden, Finland, and parts of NW Russia. Our reconstruction uses a glacial geomorphological inversion approach, in which we generated 611 individual ...
Frances E. G. Butcher +9 more
wiley +1 more source
Understanding the underlying genetic mechanisms for age at first calving, inter-calving period and scrotal circumference in Bonsmara cattle. [PDF]
BMC Genomics, 2023 Reding JJ +3 more
europepmc +1 more source
Boreas, EarlyView.Rapid thaw of the Earth's cryosphere in response to anthropogenic warming highlights the need to identify and understand the contrasting signatures of past ice‐sheet stability and collapse. The Kvarken archipelago, western Finland, at the centre of the former Fennoscandian Ice Sheet (FIS), has been designated a UNESCO World Heritage site in recognition
Niko Putkinen +6 more
wiley +1 more source
Age at first calving : effect on culling age and reason for culling [PDF]
, 2012 I Sverige är den genomsnittliga inkalvningsåldern 28-29 månader. Trots att rådgivningen rekommenderat en sänkning de senaste 20 åren så har nästan ingenting hänt.
Fors-Jadin, Sara
core
Trends in growth and age at first calving for Holstein and Ayrshire heifers in Quebec
, 2006 The objective was to provide an overview of heifer growth in Quebec and analyze its relationship with age at first calving. Heifer body weights, wither heights, body condition scores, and breeding events collected from 1993 to 2003 were obtained and ...
R. Lacroix +4 more
core +1 more source
Perceived costs as drivers of wildlife management preferences in rural Tanzanian communities
Conservation Biology, EarlyView.Abstract Effectively managing human–wildlife interactions is crucial for fostering coexistence on shared landscapes. Management options are most effective when aligned with the preferences of people directly affected by wildlife, yet little is known about how socioecological factors influence these preferences.
Christian Kiffner +10 more
wiley +1 more source
Optimal age at first calving for improved milk yield and lengh of productive life in Tunisian Holstein cows [PDF]
, 2009 peer reviewedThe effects of age at first calving on milk production and true herd life were studied in Tunisian Holstein cows. There were 33,407 first lactation records of cows born between 1987 and 2001 from 166 herds.
Rouissi, Hamadi +4 more
core
Association of age at first calving with longevity, milk yield, and fertility up to the third lactation in a herd of Holstein dairy cows in Japan. [PDF]
J Reprod Dev, 2023 Kusaka H, Yamazaki T, Sakaguchi M.
europepmc +1 more source