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Control de la actividad reproductiva en ovejas de raza Churra Galega Bragançana...
Correia, Teresa Montenegro; Venâncio, David; Azevedo, Jorge; Maurício, Raimundo; Valentim, RamiroThis work aimed to compare two different protocols - FGA + eCG and melatonin + FGA + eCG - commonly used to control the breeding activity in Churra Galega Bragançana ewes. The effect of time at eCG administration - 24 hours before or at sponge withdraw - was also assessed. ln March, 94 adult ewes were randomly divided in two groups: 25 received a subcutaneous implant of melatonin (18 mg) as the others 69 got no...
Efecto del tipo de cubrición y del método de control de la actividad reproducti...
Valentim, Ramiro; Cortez, Fátima; Azevedo, Jorge; Maurício, Raimundo; Correia, Teresa MontenegroThe main aim of this paper was to study the effects of different breeding - natural mounting vs. artificial insemination - and hormonal control protocols - melatonin + FGA + eCG vs. FGA + eCG - on the reproduction activity of Portuguese Serrana goats in the anestrous season. ln March, 60 adult Serrana goats were randomly divided in two groups: half the goats received a subcutaneous implant of melatonin (18 mg) ...
Anticipación de la actividad reproductiva en ovejas de raza Churra Galega Braga...
Valentim, Ramiro; Azevedo, Jorge; Maurício, Raimundo; Correia, Teresa MontenegroThis work aimed to assess if a pre-treatment with melatonin may improve the efficiency of a short-term progestagen treatment in advancing the breeding season in Churra Galega Bragançana ewes. The effects of eCG and hCG were also assessed. ln March, 65 adult ewes were randomly divided in two groups: 28 received a subcutaneous implant of melatonin (18 mg) as the others 37 got no treatment (Control). Forty-live da...
Ewe mastitis and milk safety
Mendonça, Álvaro; Machado, M.; Tavares, A.; Quintas, Hélder; Fernandes, António; Maurício, Raimundo; Cardoso, ManuelIn order to assess the safety of milk used for produce raw milk ewe cheeses, we collect 60 milk aseptic samples from 60 half udders, during nine weeks, totalizing 540 samples. As result we identified 19 different microorganisms in 86 glands during the sampling time. Only one microorganism (S. aureus) could be dangerous for human health, found in the 6th week. All the others were almost all pathogens for animal ...
Hormonal control of the breeding activity in Churra Galega Bragançana ewes
Correia, Teresa Montenegro; Azevedo, Jorge Manuel Teixeira de; Mendonça, Álvaro; Maurício, Raimundo; Cardoso, Manuel; Velasco, Helena; Quintas, HélderThis study aimed to evaluate the efficiency of different hormonal treatments to control the breeding activity in Churra Galega Bragançana (CGB) ewes. Material and Methods This experiment took place at Bragança (latitude 41° 49' N, longitude 6° 40' W, altitude 720 meters) and involved 94 adult CGB ewes. At March 9, 25 ewes received a melatonin implant (18 mg) – Melatonin. Forty-five days later a vaginal sponge w...
Advance of the breeding season and artificial insemination with frozen semen in...
Valentim, Ramiro; Cortez, Fátima; Azevedo, Jorge Manuel Teixeira de; Pereira, Francisco; Mendonça, Àlvaro; Quintas, Hélder; Maurício, RaimundoThis study aimed to compare the efficiency of melatonin and/or a short-term FGA treatment in the advance of the breeding season in Serrana goats. Fertility after artificial insemination (AI) with frozen semen was also assessed. Material and Methods This experiment took place at Bragança (latitude 41° 49' N, longitude 6° 40' W and altitude 720 meters) and involved 65 adult Serrana goats. At early March, 32 goats...
Hormonal control of the breeding activity in Churra Galega Bragançana ewes
Correia, Teresa Montenegro; Azevedo, Jorge; Mendonça, Álvaro; Maurício, Raimundo; Cardoso, Manuel; Velasco, Helena; Quintas, Hélder; Fontes, PauloThis study aimed to evaluate the efficiency of different hormonal treatments to control the breeding activity in Churra Galega Bragançana (CGB) ewes. Material and Methods This experiment took place at Bragança (latitude 41° 49' N, longitude 6° 40' W, altitude 720 meters) and involved 94 adult CGB ewes. At March 9, 25 ewes received a melatonin implant (18 mg) – Melatonin. Forty-five days later a vaginal sponge w...
Advance of the breeding season and artificial insemination with frozen semen in...
Valentim, Ramiro; Cortez, Maria de Fátima Cardoso Azevedo; Azevedo, Jorge; Pereira, Francisco Sá; Mendonça, Álvaro; Quintas, Hélder; Maurício, RaimundoThis study aimed to compare the efficiency of melatonin and/or a short-term FGA treatment in the advance of the breeding season in Serrana goats. Fertility after artificial insemination (AI) with frozen semen was also assessed. Material and Methods This experiment took place at Bragança (latitude 41° 49' N, longitude 6° 40' W and altitude 720 meters) and involved 65 adult Serrana goats. At early March, 32 goats...
Efficiency of somatic cell count and california mastitis test in the diagnosis ...
Mendonça, Álvaro; Machado, M.; Tavares, A.; Quintas, Hélder; Valentim, Ramiro; Maurício, Raimundo; Cardoso, ManuelThis study aimed to compare the efficiency of microbiological test with Californian Mastitis Test and somatic cell count in the diagnosis of Subclinical Mastitis (SM) in Terrincha sheep. Twenty-seven of a flock of about 200 Terrincha ewes (local breed) were studied for a period of 9 weeks (n > 497 samples). Milk samples were aseptically collected from each half udder once a week. At the same time, another sampl...
Serological survey of Map infection in goats in the Northeast of Portugal
Quintas, Hélder; Coelho, Cláudia A.; Valentim, Ramiro; Vila, Ana Grau; Prendes, Sergio Marques; Maurício, Raimundo; Mendonça, ÁlvaroThe aim of this work was to study the seroprevalence of paratuberculosis in the Northeast of Portugal in order to discern its economic impact, and to prioritize the allocation of disease control resources. The goat flocks studied were located in the region of Trás-os-Montes e Alto Douro, Northeast of Portugal and included 3 counties (Macedo de Cavaleiros, Mirandela and Alfandega da Fé). In each flock, veterinar...
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