Factors affecting goat milk fat yield

Abstract

The objective of the paper was to investigate the main factors determining the yield of fat in goat milk in the dairy goat population of Lithuania. The research was carried out on a total of 1,079 dairy goats (4 breeds: Czech White Shorthaired (n = 610), Saanen (n = 364), Lithuanian native (n = 94) and Anglo-Nubian (11)) in 7 dairy farms. The average milk yield during lactation was 797.42 (±53.3) kg. The average milk fat content was 4.14% (±0.4). The research of the goat milk fat content demonstrated that the indicators investigated in different herds varied. The highest milk fat content in percent was determined among AngloNubian -5.2%. The milk fat content of all breeds of goats increased with increasing the parity up to the 4-6th parity, respectively, and started decreasing then, after reaching the peak. While assessing the quantity of milk fat during the stage of lactation, the highest milk fat content was determined during the first months (4.5-4.7%) and at the end of lactation (4.5%). The research performed by us showed that such factors as breed, parity, stage of lactation and herd had an impact on the quantity of goat milk fat.

Proximate composition determination in goat cheese whey by near infrared spectroscopy (NIRS)

“…Despite the lack of seasonal differences in the composition of goat whey of the present study, it is reported that breed, animal feed, farming systems (particularly the extensive system), lactation and milking usually affect the amount and quality of milk used for cheese production, which are related to the seasonal changes that can occur in the composition of cheese whey (Ferro, Tedeschi & Atzori, 2017;Šlyžius, Šlyžienė & Lindžiūtė, 2017). Therefore, it is possible to assume that the animals used in milk production (Saanen goats), that produced the resulting whey for this study, were most likely receiving the same amount of nutrients during the summer and winter months.…”

A retinoscopic survey of donkeys and goats

“…Goats are among the earliest domesticated animals that have been raised by humans for at least 10 000 years 22 . Due to their adaptability to different environmental and climatic conditions, they are dispersed all over the world (except Antarctica) and are considered beneficial animals to humans, providing milk, meat and wool 23,24 . Goat eyes are frequently used in ophthalmic research, 25,26 because of anatomic similarities to the human globe and due to their availability 26 .…”

“…22 Due to their adaptability to different environmental and climatic conditions, they are dispersed all over the world (except Antarctica) and are considered beneficial animals to humans, providing milk, meat and wool. 23,24 Goat eyes are frequently used in ophthalmic research, 25,26 because of anatomic similarities to the human globe and due to their availability. 26 Goat eyes also serve as an eye model for training of new surgeons practicing phacoemulsification.…”