scholarly journals Physicochemical composition and fatty acid profile of milk from F1 Holstein x Zebu cows fed with increasing concentrations of urea

2015 ◽  
Vol 36 (6Supl2) ◽  
pp. 4435 ◽  
Author(s):  
Vanice Mendes de Souza ◽  
Vicente Ribeiro Rocha Júnior ◽  
Luciana Albuquerque Caldeira ◽  
Ana Paula Da Silva Antunes ◽  
José Reinaldo Mendes Ruas ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Soybean Meal ◽  
Somatic Cell Count ◽  
Experimental Period ◽  
Latin Squares ◽  
Physicochemical Composition ◽  
Milk Samples ◽  
Milk Urea ◽  
Zebu Cows

<p>We evaluated the physicochemical composition and fatty acid profile of milk from F1 Holstein <strong>× </strong>Zebu cows that were fed increasing levels of urea (0%, 33%, 66% and 100%, corresponding to 0%, 0.92%, 1.84% and 2.77% CP as NPN) as a substitute for soybean meal. Eight lactating F1 Holstein <strong>× </strong>Zebu cows producing an average of 10 kg of milk per day corrected to 3.5% fat, were placed in two 4 <strong>× </strong>4 Latin squares (4 animals, 4 diets and 4 periods). Each experimental period lasted 18 days. Milk samples from each cow were collected from morning and afternoon milkings and analyzed for composition and fatty acid concentration. Milk urea nitrogen increased linearly (P &lt; 0.05) with increasing dietary urea. Other variables including fat content, protein, fixed mineral residues, lactose, total nonfat solids, acidity, density, casein, cryoscopic index, somatic cell count, and milk fatty acid concentrations, were not affected by treatment. Thus, urea provides a viable alternative to soybean meal that does not affect the characteristics of milk from primiparous F1 Holstein <strong>× </strong>Zebu cows, producing up to 10 kg of milk corrected to 3.5% fat day-1.</p>

scholarly journals Physicochemical composition and fatty acid profile of milk from F1 Holstein x Zebu cows fed with increasing concentrations of urea

2015 ◽  
Vol 36 (6Supl2) ◽  
pp. 4435
Author(s):  
Vanice Mendes de Souza ◽  
Vicente Ribeiro Rocha Júnior ◽  
Luciana Albuquerque Caldeira ◽  
Ana Paula Da Silva Antunes ◽  
José Reinaldo Mendes Ruas ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Soybean Meal ◽  
Somatic Cell Count ◽  
Experimental Period ◽  
Latin Squares ◽  
Physicochemical Composition ◽  
Milk Samples ◽  
Milk Urea ◽  
Zebu Cows

We evaluated the physicochemical composition and fatty acid profile of milk from F1 Holstein × Zebu cows that were fed increasing levels of urea (0%, 33%, 66% and 100%, corresponding to 0%, 0.92%, 1.84% and 2.77% CP as NPN) as a substitute for soybean meal. Eight lactating F1 Holstein × Zebu cows producing an average of 10 kg of milk per day corrected to 3.5% fat, were placed in two 4 × 4 Latin squares (4 animals, 4 diets and 4 periods). Each experimental period lasted 18 days. Milk samples from each cow were collected from morning and afternoon milkings and analyzed for composition and fatty acid concentration. Milk urea nitrogen increased linearly (P < 0.05) with increasing dietary urea. Other variables including fat content, protein, fixed mineral residues, lactose, total nonfat solids, acidity, density, casein, cryoscopic index, somatic cell count, and milk fatty acid concentrations, were not affected by treatment. Thus, urea provides a viable alternative to soybean meal that does not affect the characteristics of milk from primiparous F1 Holstein × Zebu cows, producing up to 10 kg of milk corrected to 3.5% fat day-1.

scholarly journals Quality of Minas fresh cheese made with milk from F1 Holstein/Zebu cows fed diets with different sources of nitrogen compounds

2017 ◽  
Vol 84 (0) ◽  
Author(s):  
Ana Cássia Rodrigues de Aguiar ◽  
Vicente Ribeiro Rocha Júnior ◽  
Luciana Albuquerque Caldeira ◽  
José Reinaldo Mendes Ruas ◽  
Silvio Humberto Cardoso de Almeida Filho ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Chemical Composition ◽  
Fatty Acid Profile ◽  
Soybean Meal ◽  
Nitrogen Compounds ◽  
Sunflower Meal ◽  
Average Production ◽  
Fresh Cheese ◽  
Different Sources ◽  
Zebu Cows

ABSTRACT: This study aimed to evaluate yield, fatty acid profile, physical, chemical and sensory composition of Minas fresh cheese made with milk from cows fed diets containing different sources of nitrogen compounds (soybean meal, urea, sunflower meal and detoxified castor bean meal). Eight F1 Holstein/Zebu cows with average production of 20 kg milk corrected to 3.5% fat day-1 were distributed in two 4 × 4 Latin squares, consisting of four treatments (diets), four animals and four experimental periods. Cheese was produced on the last day of each experimental period. The physical and chemical composition, yield and texture of cheese were similar between diets. The used diets influenced the concentration of fatty acid C11:0, which was higher for diets with soybean meal and sunflower meal; C18:2 C9-T11 (CLA) was higher for diets with urea, soybean meal and sunflower meal and C20:3 for diets with soybean meal and urea. For the other saturated, monounsaturated and polyunsaturated fatty acids, differences were not detected. Different sources of nitrogen compounds in the diet for cows with average production of 20 kg milk corrected to 3.5% fat day-1 have no effect on the physical or chemical composition, yield, as well as acceptance of Minas fresh cheese. However, it can influence the fatty acid profile in the cheese fat.

scholarly journals Mare’s Milk from a Small Polish Specialized Farm—Basic Chemical Composition, Fatty Acid Profile, and Healthy Lipid Indices

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1590
Author(s):  
Grażyna Czyżak-Runowska ◽  
Jacek Antoni Wójtowski ◽  
Romualda Danków ◽  
Daniel Stanisławski
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Chemical Composition ◽  
Birth Order ◽  
Fatty Acid Profile ◽  
Age Structure ◽  
Atherogenic Index ◽  
Milk Samples ◽  
Stage Of Lactation ◽  
Bulk Tank

The objective of this study was to determine the chemical composition, fatty acid profile, and values of healthy indices of milk from a specialized farm of Polish Coldblood mares of different ages, birth orders, and lactation stages. Milk samples (n = 48) were collected for analysis in weeks 10, 15, and 25 of lactation from mares aged between five and 14 years. The study showed that the stage of lactation has a significant effect on the fatty acid (FA) profile of the milk produced on the farm. The highest concentration of monounsaturated and polyunsaturated FAs was found in milk produced from the 15th week of lactation. The milk was also characterized by low values of atherogenic and thrombogenic indices, which indicate the health benefits of milk with respect to the content of fatty acids and their potential to prevent or cause atherosclerosis and thrombosis. The study also found a significant correlation between the number of foalings (birth order), the fatty acid profile, and atherogenic index of milk produced on the farm. The findings from the study indicate that it is possible to modify the fatty acid profile of bulk tank milk through appropriate management of the age structure of the herd of mares. To confirm this dependence, the study will be continued on a larger group of mares.

Supplementation with whole cottonseed changes milk composition and milk fatty acid profile in dairy cows

2011 ◽  
Vol 51 (2) ◽  
pp. 95 ◽  
Author(s):  
O. Dayani ◽  
G. R. Ghorbani ◽  
A. K. Esmailizadeh
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Conjugated Linoleic Acid ◽  
Fatty Acid Profile ◽  
Milk Yield ◽  
Experimental Period ◽  
Milk Composition ◽  
Milk Fatty Acid ◽  
Whole Cottonseed

Eight multiparous Holstein cows in mid lactation (average days in milking of 160 ± 40) were used in a replicated 4 by 4 Latin square design, each experimental period lasting 3 weeks, to determine the effects of whole cottonseed (WCS) treatment and dietary crude protein (CP) concentration on the profile of milk fatty acids. Each 3-week experimental period consisted of 2 weeks for ration adaptation followed by 1 week for data collection. The experimental diets consisted of: (1) Control (without WCS), 16% CP; (2) 20% WCS, 16% CP; (3) 20% WCS, 13% CP; and (4) 20% crushed WCS, 13% CP. Minerals and vitamin supplements were the same in all experimental diets. The WCS treatment led to increased DM intake, fat-corrected milk yield, fat concentration, proportion of long-chain fatty acids, unsaturated fatty acids and ratio of unsaturated to saturated fatty acids (P < 0.05). Decreased concentration of dietary CP from 16 to 13% (diet 2 compared with diet 3) led to a decrease in both milk yield and milk composition (P < 0.05). WCS crushed in diets with 13% CP (diet 4 compared with diet 3) increased (P < 0.05) the concentration of conjugated linoleic acid in milk fat. The results demonstrated that adding WCS to the diet of lactating cows improves both milk yield and milk fatty acid profile, particularly the proportion of conjugated linoleic acid.

Physicochemical composition, fatty acid profile and cholesterol content of “Pecorino Carmasciano” cheese, a traditional Italian dairy product

2014 ◽  
Vol 36 (1-2) ◽  
pp. 85-89 ◽  
Author(s):  
Raffaele Marrone ◽  
Anna Balestrieri ◽  
Tiziana Pepe ◽  
Lucia Vollano ◽  
Nicoletta Murru ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Dairy Product ◽  
Cholesterol Content ◽  
Physicochemical Composition

scholarly journals Physicochemical characterization and lipid profile of meat from crossbred

2019 ◽  
Vol 49 (11) ◽  
Author(s):  
Leidiane Reis Pimentel ◽  
Fabiano Ferreira da Silva ◽  
Robério Rodrigues Silva ◽  
Wéder Jânsen Barbosa Rocha ◽  
Sinvaldo Oliveira de Souza ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Rainy Season ◽  
Physicochemical Parameters ◽  
Physicochemical Characterization ◽  
Carcass Characteristics ◽  
Experimental Period ◽  
Dry Season ◽  
Energy Supplement ◽  
Longissimus Lumborum

ABSTRACT: The aim of this study was to evaluate the carcass characteristics and the physicochemical parameters, centesimal composition, and fatty acid profile of the longissimus lumborum muscle of crossbred steers on a Brachiaria (Syn. Uruchloa) brizantha cv. Marandu pasture during the growing and finishing phases. Twenty-two uncastrated steers ½ Holstein/Zebu, with an average initial weight of 210 kg ± 8.2 kg and eight months of age, were distributed in a completely randomized design, in which the experimental period was fractionated in to three seasons associated with two nutritional plans (NP1 and NP2) and 11 animals by treatment: NP1- mineral mixture ad libitum in rainy seasons + nitrogen/energy supplement at 1 g.kg-1 body weight (BW) in the dry season; and NP2 - nitrogen/energy supplement at 2 g.kg-1 BW in rainy season 1 and in the dry season + nitrogen/energy supplement at 1 g.kg-1 BW in rainy season 2, provided daily at 1000 h. Of the carcass measurements, differences were only observed (p>0.05) between the nutritional plans for loin-eye area corrected for 100 kg of hot carcass weight. Among the physicochemical parameters, only shear force was influenced (p>0.05) by the treatments, with higher values obtained in Nutritional Plan 1. The centesimal composition and fatty acid profile were not influenced (P<0.05) by supplementation. Nutritional plans used in the growing and finishing phases involving low levels of protein-energy supplementation do not lead to changes significant in carcass characteristics and meat. Nutritional Plan 1 is the most appropriate because it presents a lower cost.

scholarly journals Correction: Fatty acid profile, physicochemical composition and sensorial attributes of salted and sun-dried meat from young Nellore bulls supplemented with condensed tannins

PLoS ONE ◽  
2019 ◽  
Vol 14 (7) ◽  
pp. e0219581
Author(s):  
Susana Melo Gesteira ◽  
Ronaldo Lopes Oliveira ◽  
Jaqueline da Silva Trajano ◽  
Cláudio Vaz Di Mambro Ribeiro ◽  
Emellinne Ingrid de Sousa Costa ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Condensed Tannins ◽  
Physicochemical Composition ◽  
Sensorial Attributes

Physicochemical composition, fatty acid profile and sensory attributes of meat (longissimus lumborum muscle) from Nellore and Nellore-cross bulls

2022 ◽  
Vol 54 (1) ◽  
Author(s):  
Vanessa Pereira Macedo ◽  
Rebeca Dantas Xavier Ribeiro ◽  
Sergiane Alves de Araújo ◽  
Mateus Neto Silva Souza ◽  
Ederson Américo de Andrade ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Sensory Attributes ◽  
Physicochemical Composition ◽  
Longissimus Lumborum

scholarly journals Effects of Whole Corn Germ, a Source of Linoleic Acid, on Carcass Characteristics and Meat Quality of Feedlot Lambs

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 267
Author(s):  
Camila O. Nascimento ◽  
Douglas S. Pina ◽  
Luís G. A. Cirne ◽  
Stefanie A. Santos ◽  
Maria L. G. M. L. Araújo ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Linoleic Acid ◽  
Fatty Acid Profile ◽  
Subcutaneous Fat ◽  
Carcass Characteristics ◽  
Corn Germ ◽  
Sensory Attributes ◽  
Physicochemical Composition ◽  
Randomized Design ◽  
Feedlot Lambs

The whole corn germ (WCG), due to its desirable nutritional characteristics, has been studied as feed for ruminants. This study aimed to evaluate the effects of WCG inclusion as a linoleic acid source in diets for feedlot lambs on carcass characteristics, physicochemical composition, sensory attributes, and fatty acid profile of the meat. Forty non-castrated, crossbreed Dorper x Santa Inês lambs were distributed in a completely randomized design to evaluate the inclusion levels (0, 30, 60, 90, and 120 g/kg dry matter (DM)) of whole corn germ (WCG) in the diet. The dietary inclusion of WCG did not influence (p > 0.05) the weight gain and carcass characteristics, with the exception of the subcutaneous fat thickness (p < 0.01), which was higher in animals fed diets with higher levels of WCG. Lightness (L *; p = 0.04), yellowness (b *; p < 0.01), shear force (p = 0.04), linoleic fatty acid concentrations (p = 0.03), and total polyunsaturated fatty acids (p = 0.04) had a quadratic increase due to WCG inclusion in the diets. The use of up to 120 g/kg DM of WCG in lamb diets does not affect the carcass characteristics, physicochemical composition, and sensory attributes of the meat. Despite this, the best polyunsaturated fatty acid profile in lambs’ meat is obtained using 76.7 g/kg DM of WCG.

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