Chitosan (CHI) is a derivative of the biopolymer chitin, found in high amounts shell wastes crustaceans, and has antimicrobial properties. The objective this study was to determine influence increasing doses CHI for grazing cattle on nutrient intake total apparent digestibility, ruminal fermentation parameters, microbial protein synthesis, nitrogen utilization, urea creatinine metabolism. Five rumen cannulated crossbred steers [3.6 mo 300 ± 25 kg live weight (LW), mean SD] were used 5 ×...

Chitosan is the second most important natural biopolymer in world, extracted from crustaceans, shrimps, and crabs can modulate rumen fermentation. Our hypothesis that addition of chitosan alters fermentation patterns different diets for ruminants. This study aimed to evaluate effects levels forage on vitro dry degradation kinetics a gas production system. The (0, 1625, 3,500, or 7,500 mg/kg matter [DM]) were arranged completely randomized block design, ruminal assay, we used split splot...

The objective was to evaluate the inclusion of chitosan (CHI) and technical cashew nut shell liquid (CNSLt) as natural feed additives in cattle diets on nutrient digestibility, ruminal fermentation, vitro gas production kinetics. We conducted a completely randomized design with 5×4 factorial arrangement, 20, 35, 50, 65, 100% Tifton 85 hay four additives, monensin (200 mg/kg DM), CNSLt (500 CHI CNSLt+CHI DM/each). Dry matter (DM) [...]

The purpose was to characterize the dairy production in municipality of Parintins, State Amazonas, considering 25 variables related technological level units.Forty properties were selected and data collected analyzed for Cluster, aiming identify groups with similar characteristics.Subsequently, from each group submitted descriptive analysis.Four -named A, B, C D -were formed their productivities 0.42, 0.74, 8.92 4.39 L ha -1 d , respectively.Manual milking non-cooling milk occur 100%...

Abstract This study evaluated fecal parameters indicative of starch digestibility water buffaloes (Bubalus bubalis) three genetic groups (GG: Jafarabadi, Mediterranean, and Murrah). Seventy-eight non-castrated males [n = 26 each GG; 200 kg initial body weight (BW); 210 days age] were used. Animals finished in feedlot, receiving a diet rich [38.76% dry matter (DM) basis]. Samples feces, offered, orts collected for test during 3 consecutive days. Diet samples incubated situ the rumen...

Climatic data were used to evaluate their correlation with feed and water intake body weight of 188 feedlot buffaloes (Bubalus bubalis; male; 13 ± 1 mo age; 314 117 kg BW). These recorded in consecutive two years from August December (Winter Spring seasons; 120 days) by a weather station located the experimental (22º49’07’S lat 48º24’29’W long; at 497m above sea level; average annual temperature 22ºC). Wet bulb (WB) (ºC), dry (DB) black globe (BG) relative humidity (RH; decimal form), wind...

The objective was to evaluate the correlation between some metabolic parameters and efficiency measures in water buffaloes of three genetic groups finished feedlot. Seventy-five non-castrated males from Murrah, Mediterranean Jafarabadi (25 animals/breed) with initial BW age means approximately 314 ± 117 kg 390 58 days were used. (Residual feed intake - RFI; Residual body weight gain RG; RIG; Gain ratio G:F; and, Feed F:G) calculated considering BW, DMI, ADG obtained during 84 feeding....

The objective of this study was to evaluate differences between carcass and non-carcass traits residual feed intake (RFI) water buffaloes (Bubalus bubalis). Efficiency tests were performed in two-years studies (2016 2017) 173 non-castrated males (360 ± 77 kg initial BW) 3 genetic groups (GG): Jafarabadi (n = 53), Mediterranean 60), Murrah 60). Animals allocated during 84 days collective feedlot pens equipped with automatic feeders trough (Intergado, Minas Gerais, Brazil). Residual determined...

Abstract This study determined equations to estimate the physical components of buffalo carcass using biometric measurements performed in vivo, traits postmortem, and set both measurements. Seventy-five non-castrated males (25 each genetic group: Jafarabadi, Mediterranean Murrah), with means initial body weight age 314 ±117 kg 390 ±58 days, respectively, were used. The animals allocated collective pens received feeding ad libitum for 240 days. Ultrasound assessments [(backfat thickness...

Abstract This study evaluated the use of infrared thermography (IT) as a tool to identify temperament 75 non-castrated water buffaloes (390±32 days age; 310±61.27 kg initial body weight) 3 genetic groups (GG:Jafarabadi, Mediterranean, and Murrah; n = 25 for each GG). The animals were classified through score (TSc) obtained by mean sum scores time entry into squeeze chute (1 5: 1=greater spent entry; 5=less entry) exit velocity 1=lower speed; 5=higher speed) calculated after period adaptation...

Abstract This study evaluated the effect of residual gain (RG) on body chemical composition water buffaloes three genetic groups (GG:Jafarabadi, Mediterranean, and Murrah) verify presence variables related to this efficiency measure. One-hundred-forty-eight non-castrated male (338.29 ±64.16 kg initial weight; 370 ±28 days age) from two similar experiments were used. The animals remained in feedlot slaughtered after 240 (adaptation+trial periods). RG was calculated considering 84 adaptation...

Abstract This study evaluated the effect of temperament 75 water buffaloes three genetic groups (GG: Jafarabadi, Mediterranean, and Murrah; n = 25 for each GG) on serum lipid levels. The animals were classified through score (TSc) obtained by mean sum scores entry time into squeeze chute (1 to 5: 1=greater spent entry, 5=less entry) exit velocity 1=lower speed, 5=higher speed) calculated after period adaptation feedlot (d0). categorized adequate (ADQ; TSc≤3) or excitable (EXC; TSc >3)...

Abstract This study evaluated the digestibility and ruminal morphophysiology of water buffaloes finished in feedlot receiving concentrate diet ad libitum (corn silage, ground corn, cottonseed meal, urea, premix). Seventy-eight male different genetic groups (GG; Jafarabadi, Mediterranean, Murrah; n = 26 animals for each GG; 378.57±42.76 kg initial body weight - BW) were used. The evaluation was performed feces samples collected after 84 days, 13 consecutive days [10 data collection dry matter...

Abstract This study evaluated the association between serum parameters and feedlot performance, efficiency measures of water buffalo for meat production. Seventy-five animals three different genetic groups (GG:Jafarabadi, Mediterranean, Murrah) were used, with means initial body weight (BW) age 314±117 kg 13±1.2 months, respectively. Animal BW recorded at beginning every 28 days until final period (EP; 84 days). Animals each GG allocated in collective pens provided artificial shade automatic...

Abstract This study determined the weight at maturity (WM) of water buffaloes three genetic groups (GG:Jafarabadi, Mediterranean, and Murrah) slaughtered different weights (420, 480, 540 kg). One-hundred-fifty-three non-castrated male (means initial body age 314 ±117 kg 390 ±32 days, respectively) from two similar experiments were used. The animals non-carcass components each animal weighed to obtain empty (EBW). left half-carcasses dissected into muscle, fat, bone. Each tissue was ground...

Abstract Equations for estimating commercial meat cuts of water buffaloes finished in feedlot (means initial body weight and age 314 ±117 kg 13 ±1.2 months, respectively) using biometric measurements performed vivo, carcass traits postmortem, the set both were determined. Seventy-five non-castrated males (25 each genetic group: Jafarabadi, Mediterranean Murrah) used allocated collective pens to receive feeding ad libitum 240 days. Body (BW), hip height (HH), ultrasound assessments (backfat...

Abstract The use of the entry time, chute score, and exit velocity as tools for assessment water buffaloes (WB) temperament were used. Seventy-five non-castrated WB (390±32 days age; 310±61.27 kg initial body weight) 3 genetic groups (GG:Jafarabadi, Mediterranean, Murrah; n = 25 each GG) arrived at research center (-28d) submitted to 28 adaptation period feedlot facilities, diet, handling. On day 0, variables collected, namely: time into squeeze (by chronometer); score (5-point scale:1=calm...

Sao Paulo State Univ Unesp, Sch Vet Med & Anim Sci FMVZ, Dept Prod Prevent DPAMVP, Paulo, Brazil

Abstract This study aimed to develop equations predict the empty body weight (EBW) using shrunk (SBW) of water buffaloes three genetic groups (GG:Jafarabadi, Mediterranean, and Murrah; n = 65 for each GG), considering possible variations among GG. One-hundred-ninety-five non-castrated males (390±32 days age; 327±51.96 kg initial - BW) from two years similar experiments were used. Animals GG allocated in collective pens 28 adaptation period. Diet offered ad libitum. Animal SBW recorded at...