<p><strong>Background</strong>. Feeding cattle in small-scale silage-based dairy production systems can improve their efficiency while reducing greenhouse gas emissions. <strong>Objective</strong>. To determine the effect of partial replacement corn silage with sorghum on concentration secondary metabolites terms Total Phenols (TP), Tannins (TT), and Condensed (CT), as well to estimate methane (CH4) carbon dioxide (CO2) <strong>Methodology</strong>....

<p><strong>Background:</strong> The consumption per capita of rabbit meat in Mexico is limited (120g) due to the lack information among consumers about nutritional quality meat, and at same time, appearance color, since they prefer a redder with more intramuscular fat. <strong>Objective: </strong>To evaluate effect addition Zinc-Methionine (Zn-Met), marigold flower pigment (FC) two slaughter ages (MS) on carcass characteristics rabbits....

Chromium (Cr) potentiates insulin, influences the weight gain composition and carcass through changes in metabolites hormones. The aim was to analyze performance, carcasses, hormones of three porcine genotypes, G1=Mexican Hairless (MH) x Yorkshire, G2=Asian MH G3=Asian males females with dietary Cr-L Methionine (Cr-Met) (0.250 mg kg-1 DM). experimental design completely randomized factorial (3-genotypes 2-sex 2-Cr levels). fattening 84 pigs, live (LW)=20.65±0.68 kg, lasted 126 days, were...

Supplemental zinc in fattening lambs improves their health, performance, and meat quality. However, the Zn effect on grazing animals combined with different levels of concentrate should be known unknown. The objective was to evaluate Zn-organic diet supplemented two growth, dry matter (DM) intake, carcass traits, body composition, quality, fatty acid profile Longissimus dorsi muscle. Twenty-eight were used a factorial arrangement (C) feed intake (C-0.75 C-1.5% live weight) Zn-Met (0 80 ppm...

Grazing cows could produce milk with a higher proportion of polyunsaturated fatty acids, which is beneficial to human health, compared non-grazing cows, though grazing alone compromise production. Under oceanic climate conditions, study involving 15 dairy fed total mixed ration (TMR) ad libitum in combination different times 12 h (TMR12), 6 (TMR06) and zero time (TMR00) the aim evaluate strategies on acids profile No differences were seen between treatments respect yield (34·4±6·3 kg/d) or...

Zilpaterol hydrochloride (ZH) redistributes ingested energy and improves feed efficiency by increasing muscle mass reducing fat in sheep cattle carcasses fattening; however, lipolysis intramuscular (IMF), it can affect meat quality terms of the attributes tenderness, juiciness, taste color; contrast, Zn methionine (ZM), due to its lipogenic effect, improve marbling without affecting production efficiency. In current study, 36 male Suffolk were used (25 ± 0.58 kg live weight, LW) evaluate...

Abstract In recent years, consumer attitudes toward fat of animal origin have changed owing to findings that some milk fatty acids (FAs) are positive for human health, especially conjugated linolenic acid and n -3 FAs. Accordingly, the manipulation content FA composition cows’ via nutritional strategies has been an important target dairy industry in many countries. Twenty commercial Holstein–Friesian herds Asturias (northern Spain) with 1106 cows were examined order evaluate profiles under...

The effect of Saccharomyces cerevisiae as live cells (LC) or extract (CE) on in vitro gas production (GP) kinetics and ruminal fermentation parameters a total mixed ration (TMR) consisting commercial concentrate alfalfa hay [1:1 dry matter (DM)] substrate was studied. TMR incubated with CE at 1, 2 4 mg/g LC 0.3, 0.6 0.9 DM for 96 h. Rumen GP recorded after 6, 12, 19, 24, 48, 72 h incubation. Interaction effects were observed (P<0.01) between treatment type yeast dose the asymptotic methane...

The objective of this study was to evaluate supplemental organic chromium (Cr) finishing lambs on growth performance, carcass characteristics, and meat quality. Eighteen Suffolk (age (4.5±0.2) mon; (25.8±3.6) kg body weight (BW)) were randomly assigned three levels Cr (0.0, 0.2 0.4 mg kg−1 dry matter (DM)) in a complete random design. Growth performance evaluated for 70 d, then slaughtered characteristics chemical composition meat. Orthogonal contrasts performed (contrast one-average level...

An experiment was conducted to evaluate the effects of two lyophilised aqueous extracts Lysiloma acapulcensis (LAE) and Phitecellobium dulce (PDE) tree leaves on in vitro assessment hatching eggs, larval development migration gastrointestinal nematodes sheep using a general linear model. Treatments contained from both species at concentrations 0, 125, 250 500 µg/mL. Both albendazole levamisole were used level 1% as positive control. The extract LAE, compared PDE, showed better inhibition...

The aim of this study was to determine the effects increasing levels two feed additives composed Salix babylonica (SB) extract and minerals mixture (MM) or their combination on in vitro gas production (GP) dry matter (DM) degradability total mixed ration (TMR; 50 concentrate: corn silage, DM basis). Combinations four SB (0, 0.6, 1.2 1.8 mL/g DM) with MM 0.5, 1.5 2.5 g/100 g were evaluated a completely random design. Samples TMR (1 g) weighed 120 mL serum bottles addition and/or MM. Then, 10...

ABSTRACT: This study examined the characteristics of fatty acids profile in meat lambs fed grazing and supplemented with different PUFA sources. Thirty Suffolk were used (37.2±5.4kg BW), on perennial ryegrass (Lolium perenne) (12h d-1) (30g kg-1 BW0.75) hay (RGH), or supplements formulated fishmeal (FHM) soybean meal (SBM). Lambs a completely randomized design. Results showed an effect total SFA, SBM higher than RGH (P=0.033), FHM showing MUFA content compared (P=0.001). Total was for RGH,...

High costs from external inputs in small-scale dairy systems (SSDS) and possible effects of climate change, require forage alternatives as silage for the dry season, small-grain cereals that have short cropping cycles, winter hardiness, good nutritional quality. The objective was to assess provision 10 kg matter (DM) cow −1 d barley (BLY) or black oat (BKO) silages three treatments: T1 = 100% BLY; T2 50% BLY + BKO; T3 BKO milking cows. All treatments also received 4.6 DM concentrates access...

&lt;p&gt;&lt;strong&gt;Background:&lt;/strong&gt; Pork meat is related to cardiovascular diseases, due its high content of saturated fatty acids and cholesterol. But it has been shown that dietary supplementation pigs with organic minerals benefits growth qualities improves carcass quality characteristics. &lt;strong&gt;Objective:&lt;/strong&gt; The objective was evaluate the effect Cu proteinate finishing Mexican Hairless (MHP) on growth, characteristics, muscle fiber composition....

The objective of this paper was to evaluate the effect four levels (0%, 4.32%, 8.39% or 12.25%) avocado waste (AW) included in diets on productive performance, carcass characteristics and meat nutritional quality fattening rabbits. For that, one hundred twenty male rabbits (New Zealand × California; 945 ± 47 g initial body weight) were fed over 28 days, randomly distributed treatments (T) (T1 = 0, T2 4.32, T3 8.39 T4 12.25% AW as fed). chemical fatty acids profiles evaluated Longissimus...

Small-grain cereals may be a forage alternative for small-scale dairy systems under limiting climatic conditions given their short agronomic cycle. Cereals as dual-purpose forages (grazing and silage) have not been evaluated in Mexico. The objective was to assess the inclusion of rye (Secale cereale L.) (SCS) or triticale (×Triticosecale spp.) silage (TRS). treatments were: T1 = 10 kg DM cow-1 d-1 SCS, T2 TRS, both with grazing access (8 h d-1) Kikuyu grass (Cenchrus clandestinus (Hochst. ex...

(2020). Effects of dietary chromium-yeast level on growth performance, blood metabolites, meat traits and muscle fatty acids profile, microminerals content in liver bone lambs. Italian Journal Animal Science: Vol. 19, No. 1, pp. 1542-1551.