Moringa oleifera leaf meal as a protein source in lactating goat's diets: Feed intake, digestibility, ruminal fermentation, milk yield and composition, and its fatty acids profile

AbstractThis research paper addresses the hypothesis that calcium salts combined with whole linseed and heat-treated rapeseed cake in one feed additive may efficiently stimulate the productivity of dairy cows and have a positive effect on the functional (health-promoting) properties of milk fat. The article proposes the composition of such an additive (EFA) and evaluates its nutritional effect in the diet of mid-lactation dairy cows. Forty multiparous Polish Holstein-Friesian (PHF) dairy cows were allocated to one of four treatments (10 cows/treatment) and fed a TMR diet without EFA or with EFA in the amount of 1, 2 or 3 kg/d per head for a 63-d-period. Individual intake of dry matter (DMI) and nutrients was determined, as was milk yield and composition, including fatty acid profile, fat soluble vitamins, cholesterol and phospholipids (PLs). Irrespective of the treatment group, cows fed diets with EFA had higher (P < 0.05) DMI, milk yield and milk vitamin D3 and K2 concentration but lower (P < 0.01) milk protein, fat and cholesterol contents. The additive did not affect the milk concentrations of β-carotene or vitamin A or E. The PLs content was correlated with fat concentration in the milk and decreased as the level of EFA in the diet increased. An increase in phosphatidylcholine in total PLs was accompanied by a reduction in the proportion of sphingomyelin (P < 0.05). The use of EFA increased the proportion of polyunsaturated fatty acids (PUFA) in the total fatty acids in the milk. The addition of EFA in the amount of 3 kg increased the proportion of PUFA by 77% (P < 0.05). In conclusion, the use of an energy-protein feed additive (EFA) increases feed intake and milk yield in cows and alters milk fat composition, improving its functional properties. Higher milk production compensates for the decrease in solids concentration in the milk, which has no effect on their daily yield.

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Effects of Calcium Salts of Fatty Acids and Protein Source on Ruminal Fermentation and Nutrient Flow to Duodenum of Cows

Journal of Dairy Science ◽

10.3168/jds.s0022-0302(91)78394-x ◽

1991 ◽

Vol 74 (7) ◽

pp. 2206-2219 ◽

Cited By ~ 52

Author(s):

I.H. Klusmeyer ◽

G.L. Lynch ◽

J.H. Clark ◽

D.R. Nelson

Keyword(s):

Fatty Acids ◽

Protein Source ◽

Ruminal Fermentation ◽

Calcium Salts ◽

Nutrient Flow

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PSV-38 Fatty acids profile of subcutaneous fat deposition in Nellore bulls classified by feed efficiency

Journal of Animal Science ◽

10.1093/jas/skz258.676 ◽

2019 ◽

Vol 97 (Supplement_3) ◽

pp. 339-339

Author(s):

Camila Delveaux Araujo Batalha ◽

Ana Carolina Almeida Rollo de Paz ◽

Renata Helena Branco ◽

Roberta Carrilho Canesin ◽

Joslaine Noely dos Santos Gonçalves Cyrillo ◽

...

Keyword(s):

Fatty Acids ◽

Fixed Effects ◽

Subcutaneous Fat ◽

Analysis Data ◽

Fat Deposition ◽

Least Square ◽

Blood Cholesterol ◽

Ruminal Fermentation ◽

Fatty Acids Profile ◽

Significant Difference

Abstract Microbial population and ruminal fermentation patterns differ according residual feed intake (RFI) classes, with possible alterations in biohydrogenation and consequently in fatty acids (FA) profile of subcutaneous fat deposition. This study aimed to evaluate FA profile of subcutaneous fat deposition in Nellore bulls classified by RFI. Data from four different trials, totaling 106 Nellore bulls (475.5 ± 77 kg of slaughter BW and 623 ± 97 d of age at slaughter), previously classified by RFI as positive (PRFI) or negative (NRFI), were used. Fatty acids profile was determined in Longissimus muscle with fat cover samples, collected immediately after boning, vacuum packed and frozen until analysis. Data were analyzed using SAS MIXED procedure, including in the model as fixed effects RFI class and age at slaughter as covariate and as random effects feeding type within trial and year of trial. Least square means were compared by the t-test, being significance determined at P ≤ 0.05 and trends at 0.05 < P ≤ 0.10. Significant difference between RFI classes was only detected for cis-vaccenic FA (C8:1 n7) (2.45 vs 2.29 g/100g; P = 0.049) and tendency for oleic FA (C18:1 n9) (34.9 vs 36.3 g/100g; P = 0.092), for PRFI and NRFI respectively. The sum of total saturated (43.4 g/ 100g), monounsaturated, and polyunsaturated (12.8 g/100g) FA, revealed a significant difference between RFI classes only for total monounsaturated FA (43.2 vs 44.8 g/100g; P = 0.046) for PRFI and NRFI respectively. This difference can be due the tendency detected between RFI classes for oleic FA, which is the monounsaturated FA in the highest concentration in the profile. Monounsaturated FA are essential in human diet because they can contribute to reduced blood cholesterol and triglyceride levels, exerting cardiovascular protection. In conclusion, NRFI Nellore animals have a better FA profile of subcutaneous fat deposition.

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The effects of Saccharomyces cerevisiae on feed intake, milk yield and composition in lactating Holstein cows

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200012886 ◽

2003 ◽

Vol 2003 ◽

pp. 129-129 ◽

Cited By ~ 1

Author(s):

M. Rezaeian

Keyword(s):

Saccharomyces Cerevisiae ◽

Milk Yield ◽

Feed Intake ◽

Yeast Strain ◽

Feed Additives ◽

Holstein Cows ◽

Animal Nutrition ◽

Ruminal Fermentation ◽

Positive Effects ◽

Live Yeast

During the recent years, the use of yeast products as feed additives has been increased in animal nutrition (Newbold et al 1996). Results from various experiments indicate that these microorganisms are able to alter ruminal fermentation patterns and have positive effects on the performance of ruminants (Wolht, et al. 1998). Therefore, the aim of this experiment was to investigate the effects of Biosaf, a live yeast strain of saccharomyces cerevisiae (Sc 47), on feed intake, milk yield and composition in lactating Holstein cows.

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