Influence of diet on the productivity and characteristics of goat milk

Abstract

The relationship between the quality of milk of different breeds of goat and their diets was assessed. Anglo-Nubian, German White and Alpine goats were used in the experiment, with 7 goats representing each breed. The influence of two diets viz., a routine diet (hay and concentrates) and a diet improved by introduction of granulated alfalfa hay, cabbage and carrots, as well as mixed feed on productivity and characteristics of goat milk were investigated. Goats were machine milked twice daily and the quantity as well as quality of milk were assessed. Results indicated that the milk yield of the Alpine goats increased 3 times; and that of the German White goats increased more than 2.5 times when fed improved diet. Feeding improved diet resulted in significant increase in fat content of milk irrespective of the goat breed. A significant increase in the protein, lactose, and consequentially the, dry non-fat milk solids was observed in Anglo-Nubian and German White goats when fed the improved diet. However, when compared to German White and Alpine goats, highest fat, protein and lactose contents were recorded in milk of Anglo-Nubian goats both on routine and improved diet. The maximum difference in biochemical parameters of milk upon changing the diet was also found in Anglo-Nubian goats. Further, the freezing point and electrical conductivity of the milk decreased irrespective of the breed when goats were fed improved diet. An inverse relationship was found between the protein content in the goats’ milk and the freezing point: with increase in the protein content, the freezing point was reduced.

Factors Affecting Milk Yield and Composition of Indigenous Balkan Goat Breed Reared in Semi Extensive Conditions

“…The mean values of fat and protein content (3.35% and 3.29%) were lower than the results reported for Italian local breeds Girgentina, Maltese, Jonica and Mediteranean Red (Curro et al 2019 andCarnicella et al 2008). Regarding milk composition, our results for fat, protein and SNF content were in agreement with the results of Mioč et al (2007) and Zazharska et al (2018) for Alpine, Saanen or Anglo Nubian breeds. Our results confirm that Montenegrin population of Balkan goat breed possesses very important biological variability, typical for autochthonous breeds, which can be used for improvement of milk production traits.…”

Distribution, bioecological peculiarities of staphylinids (Coleoptera, Staphylinidae) in livestock biocenoses of forest-steppe and steppe Ukraine

“…A relevant task for the agro-industrial complex is the development of efficient biological scientifically-based and rationally-organized methods of control of numerous ectoparasites of agricultural animals. Elimination of invasive diseases significantly increases the volumes of production of livestock products (meat, milk) of high sanitary-hygienic quality (Zazharska et al, 2018;Kulyaba et al, 2019;Gutyj et al, 2019).…”

Nematocidial activity of aqueous solutions of plants of the families Cupressaceae, Rosaceae, Asteraceae, Fabaceae, Cannabaceae and Apiaceae

“…Rhabditida pathogens of nematodiases in mammals are most often represented by Strongyloides papillosus (Wedl, 1856). Helminthiases cause economic losses to livestock farms every year (Peter et al, 2015;Stachurska-Hagen et al, 2016;Thamsborg et al, 2017;Zazharska et al, 2018). S. papillosus is a nematode which affects the gastrointestinal tract and breathing organs (at the larva stage).…”