Inclusion of Protected Fat in Diets on the Milk Production and Composition of Saanen Goats

Abstract

According on the fat source included in the diets for goats, the milk production can be increased and milk fatty acid composition can be improved. This study was conducted to evaluate the inclusion of protected fat (CSFA - calcium salts of fatty acids) in the diets of lactating Saanen goats on milk production and composition. Five Saanen goats (63.23 ± 9.08 kg body weight and 105 ± 3 days of lactation) were distributed in a Latin square design (5 × 5) with five diets: control (without the addition of CSFA) and the other diets with: 6.25, 12.50, 18.75 and 25.0 g CSFA per kg dry matter (g/kg DM), respectively. Dry matter intake (DMI) and milk production (MP) were evaluated. Milk samples were collected to determine milk composition and fatty acid profile. Feed efficiency (FE) was estimated. The supplementation of CSFA up to 25 g/kg DM did not influence the DMI, MP and FE. Milk components production (g/d) was not influenced by the inclusion CSFA in the diet; however, there was a linear reduction of 0.87 g protein per kg of milk for each 1% CSFA included in the diet. The concentration of linolenic acid (18:3n-3) in milk was improved with a maximum point of 24 g of CSFA per kg DM. CSFA can be included in the diets of lactating Saanen goats up to 25 g/kg DM with no interference on DMI and MP.

<b>Influence of calcium salts of long chain fatty acids on the intake and digestibility of rations in female kids under heat stress

“…The dry matter intake (DMI) was not influenced by the addition of fat in the diets (Table 4), which is in agreement with the findings of Molina et al (2015), who supplemented with 25 g of calcium salts of long chain fatty acids kg -1 of DM; Hosam (2011), who supplemented with 50 g of calcium salts kg -1 of DM; Silva, Rodrigues, Branco et al (2007), who used 6.5% EE of soya oil, soya bean and calcium salts; and Possamai et al (2015), who used calcium salts of fatty acids in up to 2.8 Mcal of metabolizable energy kg -1 of DM in the diet of Saanen goats, without affecting the intake.…”

“…However, it is possible that minor inclusions do not exercise adverse effects on the intake (Molina et al, 2015).…”

Influences of chia flour and the concentration of total solids on the characteristics of ‘dulce de leche’ from goat milk

“…This result with low H/H is influenced by the high content of myristic (14I:0) and palmitic acid (16I:0), which represent more than 55% of the total fatty acids in the treatment of 'dulce de leche' . As for the other fatty acids, significant concentrations (13.56 to 14.86 g/100 g lipids) of short-chain fatty acids (4I:0 to 10I:0) are noted that are characteristic of goat milk, as demonstrated by Molina et al (2015).…”

Enrichment of chocolate byproducts and protected fats with zinc to partially replace corn in diets of early lactation Holstein cows

“…All measured blood parameters and hematology were within the reported reference ranges for healthy cows (Jerry Kaneko et al, 2008). The replacement did not affect the concentrations of urea-N and creatinine, indicating unaffected glomerular filtration in the kidney or kidney function (Hosten, 1990), and a satisfactory metabolic status and an adequate provision of amounts of N and energy by the diets (Molina et al, 2015). Additionally, treatments did not affect the concentrations of ALT and AST, which were within reference ranges for healthy cows (Jackson and Cockcroft, 2007), indicating minimal effects of treatments on liver enzymes as evidences of the absence of negative effects on liver function.…”