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Abstract

This study assessed the effects of management factors and weather at artificial insemination (AI) on fertility rate in the Florida goat breed based on 7621 artificial inseminations from 47 farms in Spain. Overall, fertility rate was 55%. Farm (P<0.0001), month (P<0.01), number of previous kiddings (P<0.05), milk production at AI (P<0.05), interval between last kidding and AI (P<0.0001), the person responsible for selecting animals for AI (P<0.05), progestagen dose (P<0.001), eCG dose (P<0.0001), sperm dose (P<0.05), site of insemination (P<0.001), incidences at AI (P<0.0001), fulfillment of AI timing schedule (P<0.0001), buck (P<0.0001), and technician (P<0.001) had a significant effect on fertility rate. Mean and maximum temperatures (T) (P<0.001) and solar radiation (SR) on the day of AI differed significantly between does that became pregnant and those that did not. After meteorological data were converted to categorical variables as deciles, the proportions of does that became pregnant were significantly higher among inseminations that were performed when...

Author(s)
Arrébola, F.; Sánchez, M.; López, M. D.; Rodríguez, M.; Pardo, B.; Palacios, C.; Abecia, J. A.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Small Ruminant Research, 2016, 137, pp 47-52
AbstractFull Text

A total number of 1092 artificial inseminations (AI) from 820 Payoya goats have been controlled during 4 years, in 10 farms (36°N). Mean, maximum and minimum ambient temperatures (T), temperature amplitude (TA), mean relative humidity (RH), mean solar radiation (SR) and total rainfall of each ...

Author(s)
Arrébola, F.; González-Casquet, O.; Benítez, F.; Palacios, C.; Abecia, J. A.
Publisher
Asociación Interprofesional para el Desarrollo Agrario, Zaragoza, Spain
Citation
XVI Jornadas sobre Producción Animal, 19 y 20 de mayo de 2015, Zaragoza, España. Tomo I & II, 2015, pp 399-401
Abstract

The present study was conducted to determine the effect of different factors on pregnancy rate after artificial insemination (AI) with refrigerated and frozen semen in Payoya goats reared under commercial farm conditions. A total of 820 goats, belonging to 10 farms, was used. The total number of...

Author(s)
Arrebola, F.; González, O.; Torres, R.; Abecia, J. A.
Publisher
CSIRO, Collingwood, Australia
Citation
Animal Production Science, 2014, 54, 3, pp 356-362
Abstract

This study was carried out to examine the impact of several climate variables on the pregnancy rate after cervical artificial insemination (AI) of Rasa Aragonesa ewes. Data were derived from 8,977 inseminations in 76 well-managed flocks performed during the first month of the breeding season (July...

Author(s)
Santolaria, P.; Yániz, J.; Fantova, E.; Vicente-Fiel, S.; Palacín, I.
Publisher
Springer-Verlag GmbH, Berlin, Germany
Citation
International Journal of Biometeorology, 2014, 58, 7, pp 1651-1655
Abstract

Acute puerperal metritis (APM) and clinical metritis (CM) are uterine diseases frequently diagnosed in dairy cows. These diseases are responsible for important economic loss because of their effect not only on reproductive performance but also on milk production. The objective of this study was to...

Author(s)
Armengol, R.; Fraile, L.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2015, 83, 8, pp 1344-1351
Abstract

In this study we determined mortality in breeding rabbits on 505 commercial farms in Spain during 2006-2014. We obtained our information by carrying out 3278 visits to 490 doe farms (127 also with males), and 877 visits to farms with males, including 132 visits to 15 artificial insemination (AI)...

Author(s)
Rosell, J. M.; Fuente, L. F. de la
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Preventive Veterinary Medicine, 2016, 127, pp 56-63
AbstractFull Text

To evaluate the effectiveness of progesterone ear devices new and second use, rates were determined estrus and pregnancy rates in cycling and anestrous animals by breastfeeding. We used 69 dual-purpose cows (Bos taurus by Bos indicus) with calf at foot and 60 to 80 days postpartum, a livestock...

Author(s)
Uribe Valderrama, R.; Robledo Vélez, E.
Publisher
Universidad CES, Facultad Veterinaria y Zootecnia, Medellín, Colombia
Citation
Revista CES Medicina Veterinaria y Zootecnia, 2012, 7, 1, pp 63-71
AbstractFull Text

Author(s)
Falceto, M. V.; Mitjana, O.; Bonastre, C.
Publisher
Grupo Asis Biomedia, S.L., Zaragoza, Spain
Citation
Albéitar, 2017, No.202, pp 8, 10
Abstract

Reproductive performance is greatly affected by environmental factors such as temperature. Heat stress (HS) during pregnancy and lactation can influence not only foetal growth but also postnatal development of kits. The aim of this study was to test the effect of HS during gestation and lactation...

Author(s)
Marco-Jiménez, F.; García-Diego, F. J.; Vicente, J. S.
Publisher
Universidad Politécnica de Valencia, Valencia, Spain
Citation
World Rabbit Science, 2017, 25, 1, pp 17-25
Abstract

We evaluated the effect of shortening the dry period (DP) on milk and energy-corrected milk (ECM) yields, milk components, colostrum quality, metabolic status, and reproductive parameters. Primiparous (n=372) and multiparous (n=400) Israeli Holstein cows from 5 commercial dairy herds were subjected ...

Author(s)
Shoshani, E.; Rozen, S.; Doekes, J. J.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2014, 97, 5, pp 2909-2922

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