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Effects Of Breed And Lactation Period On Some Characteristics And Free Fatty Acid Composition Of Raw Milk From Damascus Goats And German Fawn X Hair Goat B_1 Crossbreds, Zehra Güler, Mahmut Keski̇n, Tuğrul Masatçioğlu, Sabri̇ Gül, Osman Bi̇çer
Effects Of Breed And Lactation Period On Some Characteristics And Free Fatty Acid Composition Of Raw Milk From Damascus Goats And German Fawn X Hair Goat B_1 Crossbreds, Zehra Güler, Mahmut Keski̇n, Tuğrul Masatçioğlu, Sabri̇ Gül, Osman Bi̇çer
Turkish Journal of Veterinary & Animal Sciences
The effects of breed and period of lactation on milk composition were investigated. For this purpose, 8 crossbred (3/4 German fawn 1/4 Hair goat) and 10 Damascus goats were kept under identical management conditions. Lactation period affected milk yield and milk composition in both goat breeds. Milk yield, lactation duration, and mean solid and fat values showed differences between the breeds. The mean values of total solid and fat of milk during lactation were 13.82 ± 0.294% and 4.55 ± 0.223% for the crossbreds, and 12.90 ± 0.179% and 4.02 ± 0.142% for Damascus goats, respectively. Although the percentages of …
Effect Of Feeding Supplemental Tallow On The Performance Of Lactating Nili-Ravi Buffaloes, Haq Nawaz, Muhammad Yaqoob, Muhammad Abdullah
Effect Of Feeding Supplemental Tallow On The Performance Of Lactating Nili-Ravi Buffaloes, Haq Nawaz, Muhammad Yaqoob, Muhammad Abdullah
Turkish Journal of Veterinary & Animal Sciences
In order to determine the feeding value of tallow for lactating Nili-Ravi buffaloes, 4 buffaloes were fed 0%, 2%, 4%, or 6% tallow in a 4 X 4 Latin square experiment. The intakes of dry matter (DM), organic matter (OM), crude protein (CP), acid detergent fiber (ADF), and neutral detergent fiber (NDF) decreased (P < 0.01), but the intakes of ether extract (EE) (P < 0.01) and digestible energy (DE) (P < 0.05) increased with increasing levels of tallow in the diets. Intake of net energy for lactation (NE_L) did not differ (P < 0.01) with varying levels of supplemental tallow. Daily milk yield increased (P < 0.01) from 11.00 to 13.2 kg/day. Production of 4% fat corrected milk (FCM), solid corrected milk (SCM), and energy corrected milk (ECM) increased quadratically (P < 0.05) with the increasing level of tallow in the diets. Milk fat content and total milk fat increased linearly (P < 0.01) and quadratically (P < 0.05), respectively, as the level of tallow in the diet increased. There was no difference in protein and lactose content due to feeding tallow. Total solid content increased quadratically (P < 0.05) from 16.45% to 17.67% but solid not fat (SNF) percentages did not vary with varying levels of tallow. The gross energy (GE) of the milk increased from 1096 to 1160 Kcal/kg (P < 0.01) with increasing levels of tallow in the diets. Energetic efficiency of milk production improved in a quadratic (P < 0.05) manner with 2%, 4%, and 6% tallow, with the highest being 47.6% with 4% supplemental tallow. The proportion of C_{8:0} to C_{16:1} fatty acids (FA) decreased from 53.66% to 35.52%, whereas the concentration of C_{18:0} to C_{20:0} increased (44.93% to 62.84%) in the milk fat of buffaloes fed diets containing different levels of tallow. Gains in body weight (BW) were higher (P < 0.05) in buffaloes fed diets containing supplemental tallow as compared to those fed the control diet. This study suggests that tallow up to 6% of diet DM is a suitable fat supplement as an economical energy source for lactating buffaloes.