Changes in udder morphology as a consequence of different milking frequency during first and second lactation in Canarian dairy goats

J.L. López; J. Capote; G. Caja; S. Peris; N. Darmanin; A. Argüello; X. Such

Changes in udder morphology as a consequence of different milking frequency during first and second lactation in Canarian dairy goats

In: Milking and milk production of dairy sheep and goats

Authors:

J.L. López

J.L. López Production Animal, Facultad de Veterinaria U.L.P.G.C. Trasmontaña. 35416 Arucas Gran Canaria, Spain

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J. Capote

J. Capote Instituto Canario de Investigaciones Agrarias. Apartado 60. La Laguna. Tenerife, Spain

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G. Caja

G. Caja Producció Animal Universitat Autônoma de Barcelona. 08193 Bellaterra Barcelona, Spain

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S. Peris

S. Peris Producció Animal Universitat Autônoma de Barcelona. 08193 Bellaterra Barcelona, Spain

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N. Darmanin

N. Darmanin Instituto Canario de Investigaciones Agrarias. Apartado 60. La Laguna. Tenerife, Spain

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A. Argüello

A. Argüello Production Animal, Facultad de Veterinaria U.L.P.G.C. Trasmontaña. 35416 Arucas Gran Canaria, Spain

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, and

X. Such

X. Such Producció Animal Universitat Autônoma de Barcelona. 08193 Bellaterra Barcelona, Spain

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Type:: Chapter

Pages:: 100–103

DOI:: https://doi.org/10.1163/9789004683877_017

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Summary

We studied 52 goats, under two machine milking frequencies (x times daily): one (x1, n=28) or two (x2, n=24) times daily, during the 1st and the 2nd lactation, to observe the changes produced in udder morphology by the milking frequency. Measurements of udder (six traits) and teats (five traits), according to a modification of the Project FAO-M4, were recorded before morning milking approximately two months after parturition. The udders studied showed a marked intra-mammary groove and symmetry. Once-a-day milking increased dramatically the volume of the udder in both lactations. Milk yield explained only partially the differences in udder volume (0.06 to 0.27L/d). Udder depth, distance to floor and distance between teats were in correspondence with udder volumes. Mean floor distances varied from 21 to 23cm, in xl milked goats and from 23 to 25cm in x2 milked goats. Furthermore, the udders of x1 milked goats showed bigger cisterns and higher teat angles. Teat length at constant diameter increased in x2 milked goats. Correlation coefficients were moderated and agreed with previous studies.

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Milking and milk production of dairy sheep and goats

E-Book ISBN:: 9789004683877

Publisher:: Wageningen Academic

Print Publication Date:: 01 Jan 1999

Subjects
- Life Sciences
  - General
  - Animal & Veterinary

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Changes in udder morphology as a consequence of different milking frequency during first and second lactation in Canarian dairy goats

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Milking and milk production of dairy sheep and goats

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