title: Effect of bypass fat supplementation on productive performance and blood biochemical profile in lactating Murrah (Bubalus bubalis) buffaloes.
abstract: The study investigated the effect of dietary supplementation of bypass fat on productive performance and blood biochemical profile of lactating Murrah buffaloes (Bubalus bubalis). Fifteen multiparous buffaloes (2-4 lactation) of early to mid lactation were divided in three homogenous groups T(1) (control), T(2), and T(3) of five each. The animals in T(1) were fed with a basal diet consisting of a concentrate mixture, green sorghum, and wheat straw as per requirements, while the animals in group T(2) and T(3) were fed with same ration supplemented with 0.7 % (100 g/day) and 1.4 % (200 g/day) bypass fat (on dry matter intake (DMI) basis), respectively. The feed intake, milk yield, and milk composition were not influenced by supplemental bypass fat. However, fat-corrected milk (6.5 %) yield was higher (P < 0.05) in T(3) (14.21) than that of T(1) (9.83) and similar with T(2) (11.05). Feed efficiency (milk yield/kg DMI) was higher (P < 0.05) in group T(3) (0.51) than that of T(1) (0.38) and T(2) (0.41) indicating that buffaloes fed with bypass fat which is 1.4 % (200 g/day) of the diet were economically more efficient. The serum cholesterol level was higher (P < 0.01) in bypass fat-supplemented group (T(2) and T(3)) of animals. Serum high density lipoprotein (HDL) cholesterol (good cholesterol) level was more (P < 0.05) than LDL cholesterol (bad cholesterol) level with higher dose of bypass fat in T(3) than T(2). It was concluded that bypass fat supplementation with 1.4 % of the diet (200 g/day) increased the fat-corrected milk production and feed efficiency along with serum HDL cholesterol level in lactating Murrah buffaloes.
authors.affiliation: University of Veterinary and Fishery Sciences, Kolkata, India.
authors.forename: Amit
authors.initials: A
authors.lastname: Ranjan
authors.forename: Biswanath
authors.initials: B
authors.lastname: Sahoo
authors.forename: Vijay Kumar
authors.initials: VK
authors.lastname: Singh
authors.forename: Susant
authors.initials: S
authors.lastname: Srivastava
authors.forename: Suresh Pratap
authors.initials: SP
authors.lastname: Singh
authors.forename: Ashok Kumar
authors.initials: AK
authors.lastname: Pattanaik
mesh_terms: D000821:Animal Feed / Q000032:analysis; D000822:Animal Husbandry; D000818:Animals; D001774:Blood Chemical Analysis / Q000662:veterinary; D002020:Buffaloes / Q000502:physiology*; D004041:Dietary Fats / Q000008:administration & dosage*; D019587:Dietary Supplements / Q000032:analysis*; D005260:Female; D007194:India; D007774:Lactation; D008892:Milk / Q000737:chemistry* / Q000378:metabolism*; D011897:Random Allocation
chemical_list: D004041:Dietary Fats