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This study aimed to evaluate the influence of the substitution of soybean meal (SM) by detoxified castor (DCC) by two alkaline products on the feeding behavior and physiological parameters of lactating goats of Saanen breeds and Anglo Nubian. The treatments consisted of three diets, with a standard formulation based on corn and FS and the others were formulated with detoxified castor by calcium hydroxide (Ca(OH)2 DCC) and another by sodium hydroxide (NaOH) DCC, which were and isonitrogenous and isoenergic. There was effect of diets on the consumption of DM and NDFap (P<0.05), with lower values for the goats fed with NaOH DCC. There was no effect (P<0.05) of diets on the fill times, rumination, time in other activities and time in idleness, rumination efficiency of NDF and chewing time total were influenced (P<0.05) by the diets. The goats fed with diet the basis of SM presented a higher heart rate and increased rectal temperature. When used in the composition of diets for lactating goats, the detoxified castor with sodium hydroxide leads to the reduction of intake DM, as well as the NDF, but both pies do not adversely affect the physiological parameters of goats. [ABSTRACT FROM AUTHOR]

Milk production traits, milk composition and somatic cell count (SCC) from exotic dairy goats were characterized in tropical climate using data from Dairy Goats Breeding Program. The breeds analyzed are distributed in two regions of Brazil (Southeast and Northeast). The Alpine, Saanen and Toggenburg (raised in Southeast) breeds were compared among themselves and with the breeds of Northeast (Anglo Nubian and Saanen). This study demonstrated that milk yield, 305-day lactation yield, lactation length and daily milk yield were influenced by the genetic of animal (breed) and the environmental conditions, such as flock, month and year of production. These same effects affected the milk composition and SCC which also were influenced by physiological stages of the does (lactation and test-day milk order). There were differences in milk composition between the breeds. This may be a result of diet and chemical composition of the pasture feeding the animals, as well as others genetic and environmental factors. The global averages for proportion of lactose were below of the minimum limits established by the Brazilian Ministry of Agriculture, Livestock and Food Supply. The average of SCC was above one million of cells/mL. This study is the first work of characterization of exotic breeds in tropical climate with a database derived of official milk recording. [ABSTRACT FROM AUTHOR]