Evaluation of the Efficacy of an Internal Teat Sealer During the Dry Period

Huxley, J.N.; Green, M.J.; Green, L.E.; Bradley, A. J.

doi:10.3168/jds.s0022-0302(02)74108-8

Cited by 143 publications

(191 citation statements)

References 22 publications

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“…by use of colchicine or endotoxin) can improve the cure rate of IMI by hastening the drying off Smith, 1982a and1982b). The increased yield at drying off has been linked with an increased risk of new IMI in the dry period and calving, mainly because of increased risk of leaking milk and intramammary pressure, and level of milk components (Huxley et al, 2002;Bradley and Green, 2004;Rajala-Schultz et al, 2005). Shortening or eliminating the dry period may influence the mammary health and the response to IMI by (i) minimizing or removing the impact of milk accumulation at dry-off, thereby lessening the immunodeficiency of the dam that is characteristic of this period, (ii) changing the composition of mammary secretions and the extent of tissue remodeling and (iii) altering the energy and nutritional status and hormonal and local regulatory factors (Pezeshki et al, 2010).…”

Section: Altered Dry Periodsmentioning

confidence: 99%

Effects of continuous lactation and short dry periods on mammary function and animal health

Collier

Annen-Dawson

Pezeshki

2012

Animal

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The dry period is required to facilitate cell turnover in the bovine mammary gland in order to optimize milk yield in the next lactation. Traditionally, an 8-week dry period has been a standard management practice for dairy cows based on retrospective analyses of milk yields following various dry period lengths. However, as milk production per cow has increased, transitioning cows from the nonlactating state to peak milk yield has grown more problematic. This has prompted new studies on dry period requirements for dairy cows. These studies indicate a clear parity effect on dry period requirement. First parity animals require a 60-day dry period, whereas lactations following later parities demonstrate no negative impact with 30-day dry period or even eliminating the dry period when somatotropin (ST) is also used to maintain milk yields. Shortened dry periods in first parity animals were associated with reduced mammary cell turnover during the dry period and early lactation and increased numbers of senescent cells and reduced functionality of lactating alveolar mammary cells postpartum. Use of ST and increased milking frequency postpartum reduced the impact of shortened dry periods. The majority of new intramammary infections occur during the dry period and persist into the following lactation. There is therefore the possibility of altering mastitis incidence by modifying or eliminating the dry period in older parity animals. As the composition of mammary secretions including immunoglobulins may be reduced when the dry period is reduced or eliminated, there is the possibility that the immune status of cows during the peripartum period is influenced by the length of the dry period.

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Section: Altered Dry Periodsmentioning

confidence: 99%

Effects of continuous lactation and short dry periods on mammary function and animal health

Collier

Annen-Dawson

Pezeshki

2012

Animal

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“…Coagulase-negative staphylococci (CNS), which were traditionally considered to be minor infectious pathogens, have become more common (Huxley et al, 2002 (Lilenbaum et al, 2000;Pereira et al, 2009;Pyöräla et al, 2009;Soares et al, 2008).…”

Section: Coagulase-negative Staphylococcimentioning

confidence: 99%

Antibiotic Resistance in Staphylococcus Species of Animal Origin

Souza¹,

Coelho²,

Pereira³

et al. 2012

Antibiotic Resistant Bacteria - A Continuous Challenge in the New Millennium

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“…Cuando la leche alcanza valores superiores a las 450.000 células/ml se considera esto como suficiente criterio para el rechazo de la leche para un proceso industrial (Cotrino 2001). descarte de animales y una disminución de los costos veterinarios y de manejo (Woolford et al 1998;Huxley et al 2002;García 2004;Traeder 2004). …”

Section: Mycoplasma Bovis Y Corynebacterium Bovis) • Mastitis Cutáneunclassified

Incidencia en el conteo de células somáticas de un sellador de barrera (yodo-povidona 0,26%) y un sellador convencional (yoduro 0,44%)

Chacón–Villalobos

Rodríguez

Ramírez³

2005

Agron. Mesoam.

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INCIDENCIA EN EL CONTEO DE CÉLULAS SOMÁTICAS DE RESUMENIncidencia en el conteo de células somáticas de un sellador de barrera (yodo-povidona 0,26%) y un sellador convencional (yoduro 0,44%). Durante los meses de agosto y septiembre del 2005, correspondientes a la temporada lluviosa, se realizó en la Estación Experimental Alfredo Volio Mata de la Universidad de Costa Rica, ubicada en Ochomogo de Cartago a una altitud de 1.542 msnm, la evaluación de un sellador de barrera elaborado con un complejo de yodo-povidona al 0,26% en comparación con un sellador convencional a base de yoduro al 0,44%. Se realizó el conteo de células somáticas (CCS) en un hato de 18 animales de la raza Jersey (Bos taurus) con un promedio de 184 días de lactación, el cual fue dividido en dos subgrupos de nueve animales, cada uno destinado a un sellador. Los resultados obtenidos evidenciaron diferencias altamente significativas entre ambos métodos para la variable respuesta CCS (P<0,0007), donde los animales tratados con el complejo yodo-povidona mostraron promedios de 118861,11 cél/ml mientras que su contraparte promedió 277.305,55 cél/ml. De esta manera se detectó que el yoduro convencional es 2,33 veces menos efectivo para el control de mastitis, lo que puede provocar un 48,8% más de pérdidas en producción que el compuesto de yodo-povidona.Palabras clave: Sellador de pezones, conteo células somáticas, mastitis, ganado de leche, leche. The results indicated significant differences in CCS (P<0.07). Animals treated with the iodine-povidone complex showed an average of 118861,11 cel/ml, while their counterparts showed an average of 277.305,55 cel/ml. Conventional iodine sealants is 2.33 times less effective for mastitis control, which may represent a reduction of 48.8% in losses if iodine-povidone sealants are employed.

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Evaluation of the Efficacy of an Internal Teat Sealer During the Dry Period

Cited by 143 publications

References 22 publications

Effects of continuous lactation and short dry periods on mammary function and animal health

Effects of continuous lactation and short dry periods on mammary function and animal health

Antibiotic Resistance in Staphylococcus Species of Animal Origin

Incidencia en el conteo de células somáticas de un sellador de barrera (yodo-povidona 0,26%) y un sellador convencional (yoduro 0,44%)

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