Factors influencing goat milk production
Paper ID : 1026-WDG2017
Authors:
مرضیه ابراهیمی *1, غلامعلی مقدم2
1تبریز، بلوار 29 بهمن خیابان امام خمینی دانشگاه تبریز، دانشکده کشاورزی، گروه علوم دامی کد پستی: 5166616471
2استاد گروه علوم دامی، دانشکده کشاورزی، دانشگاه تبریز، تبریز، ایران
Abstract:
Goat breeding placed mostly in rural areas and increasing goat milk production can improve farmers’ income. Therefore, the objective of this article was to provide a group of factors influencing goat milk production and composition. Breed differences and animal effect are genetic factors influencing milk production. Also, a large number of environmental factors influences milk production. The impact of parity on goat milk production is increasing up to the third lactation and decreasing afterwards. Lactation stage has also an impact on goat milk production in a way that the peak of milk production is from 40th to 80th day in milk; afterward, reduction in milk production and its lactose content was observed along with increase in somatic cell counts, fat, and protein contents of milk. Season of kidding increases milk production if goats’ peak of milk production is concomitant with abundance of grass in pastureland. Other environmental factors influencing milk production and its composition are included: nutrition (concentrate level and its composition, and diet level and type of protein and fat), goats’ ability to use body reserves to meet energy requirements during lactation, age, rearing system, number of kids in each parity, sex and weight of kids, goat weight, udder size, frequency of milking, photoperiod, length of dry period, environmental temperature, and animal health (hygiene and absence of intra-mammary infection). Accordingly, in order to increase goat milk production, it is advisable for goat farmers to focus on environmental factors like nutrition and other management practices.
Keywords:
Environmental factors, Goat, Milk production
Status : Abstract Accepted (Poster Presentation)