scholarly journals Comparison of the population structure of Streptococcus uberis mastitis isolates from Austrian small-scale dairy farms and a Slovakian large-scale farm

2020 ◽  
Vol 103 (2) ◽  
pp. 1820-1830
Author(s):  
Regina Wald ◽  
Martina Baumgartner ◽  
Julia Gutschireiter ◽  
Benjamin Bazzanella ◽  
Katharina Lichtmannsperger ◽  
...  
2011 ◽  
Vol 49 (5) ◽  
pp. 693-702 ◽  
Author(s):  
Jesús Andrei Rosales-Castillo ◽  
Ma. Soledad Vázquez-Garcidueñas ◽  
Hugo Álvarez-Hernández ◽  
Omar Chassin-Noria ◽  
Alba Irene Varela-Murillo ◽  
...  

2001 ◽  
pp. 70-75
Author(s):  
Tibor Nagy

The author examined the possibilities of increasing the labour efficiency at 6 large-scale farms and at 109 small-scale farms in Hajdú-Bihar county. He stated that the level of labour efficiency was higher for large scale farms than for small-scale farms. However, there is potential for work organisation of milking, feeding and other jobs on the large-scale farms, too. The reason for the low labour efficiency on small-scale dairy farms is the small number of livestock, obsolete machinery, and lack of expertise. The author points out that the quality of raw milk is also an important issue. Using examination methods of work organisation, he determined the critical points of raw milk production.


2014 ◽  
Vol 47 (2) ◽  
pp. 331-337 ◽  
Author(s):  
Carlos Galdino Martínez-García ◽  
Adolfo Armando Rayas-Amor ◽  
Juan Pablo Anaya-Ortega ◽  
Francisco Ernesto Martínez-Castañeda ◽  
Angélica Espinoza-Ortega ◽  
...  

Animals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 800
Author(s):  
Luis Javier Montiel-Olguín ◽  
Felipe J. Ruiz-López ◽  
Miguel Mellado ◽  
Eliab Estrada-Cortés ◽  
Sergio Gómez-Rosales ◽  
...  

Management and production characteristics impact conception rate to first service (CR1S) in small-scale dairy farms, but the impact of body condition score (BCS) and milk production levels on cows’ fertility is unknown. Our objective is to determine the effect of BCS and milk production on CR1S in small-scale dairy farms of western Mexico. Logistic regression models are used to determine the effect of BCS (at calving and first service), 60-d and 305-d milk production, protein and fat production, lactation number, and days at first service on CR1S. BCS at calving does not affect CR1S in cows with three or more lactations (39.5%; p > 0.1). However, first-lactation cows with BCS < 3.0 at calving and second lactation cows with BCS ≤ 2.5 at calving have higher CR1S (63.2 and 67.9%, respectively; p < 0.1). This result is perhaps due to reduced milk production, which leads to lower metabolic stress. BCS ≤ 2.5 at calving is associated (p < 0.05) with a reduced milk yield, explaining partially the observed higher CR1S in these groups. Cows with BCS ≤ 2.5 at first service in the higher quartile of 60-d milk production (≥ 28kg/day) show lower CR1S (23.9 and 51.1%, respectively; p < 0.01). In conclusion, BCS at calving and at first service, 60-d milk production, and lactation number are factors associated with CR1S.


2019 ◽  
Vol 52 (3) ◽  
pp. 1141-1148 ◽  
Author(s):  
Leonel Avendaño-Reyes ◽  
Peter H. Robinson ◽  
Juan A. Hernández-Rivera ◽  
Abelardo Correa-Calderón ◽  
Ángel López-López ◽  
...  

2016 ◽  
Vol 124 ◽  
pp. 94-102 ◽  
Author(s):  
Sara Salvador ◽  
Mirco Corazzin ◽  
Edi Piasentier ◽  
Stefano Bovolenta

Sign in / Sign up

Export Citation Format

Share Document