Download Dairy Sheep Nutrition by Giuseppe Pulina PDF

By Giuseppe Pulina

Sheep milking is frequent through the Mediterranean, and is changing into extra universal in nations equivalent to the united kingdom, united states, important the USA, South Africa, Australia and New Zealand. solid nutrients is a severe consider optimising dairy construction from sheep. This booklet is a translation of a favored Italian textual content, initially released in 2001 and contains up-to-date info, and new fabric on temperate areas. It includes chapters on all facets of dairy sheep meals and feeding, comparable to milk construction, feed consumption, meals and copy, food and milk caliber, and grazing and stocking price administration.

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These results are confirmed by the observation, discussed later in more detail, that as feeding level increases, the weight of visceral organs and their metabolic activity increases as well, with considerable effects on maintenance requirements. 1). 2). None of these systems correct requirements to account for possible breed differences. Nevertheless, the variability among sheep breeds for morphology, genetic merit and productive attitude is probably as high as for cattle. , 1993). 75 as the animal ages from 1 to 6 years.

Prod. , 59: 77–94. D. (1990) Modelling daily milk yield in Holstein cows using time series analysis. J. , 73: 539–548. J. (1988) An approach to the analysis of repeated measurements. Biometrics, 44: 959–971. E. (1997) A model to describe growth patterns of the mammary gland during pregnancy and lactation. J. , 80: 2340–2354. , Boston R. (1993) Lactation curve analysis: comparison of gamma function, polynomial and exponential methods toward a mechanistic model of milk production. J. , 76 (suppl.

Cappio-Borlino et al. Test Day models are able to highlight the higher level of production for ewes at third or greater parity and the greater persistency of lactation in primiparous ewes (Fig. 4). , 1992). Curves of fat content do not show substantial differences between different parities (Fig. 5), whereas a lower protein percentage in the milk of first and second parity ewes can be observed (Fig. 6). This result is usually explained by the reduced rumen functionality, the lower synthesis efficiency of the mammary gland and the preferential utilization of the available amino acids in growing tissues in young animals.

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