An experiment was carried to evaluate the energy and protein requirements for growth maintenance of lambs different sex classes. In all, 38 hair (13.0±1.49 kg initial BW 2 months old) were allocated in a factorial design with diet restriction levels (ad libitum, 30% 60% feed restriction) classes (castrated non-castrated males). Four animals from each class slaughtered at beginning trial as reference group estimate empty body composition. The remaining weighed weekly calculate gain (BWG),...

An experiment was conducted to evaluate the effects of feed restriction (FR) and sex on quantitative qualitative carcass traits Morada Nova lambs. Thirty-five animals with an initial body weight 14.5 ± 0.89 kg age 120 d were used in a completely randomized study 3 × factorial scheme consisting three sexes (11 entire males, 12 castrated males females) levels feeding (ad libitum – AL 30% 60% FR). Entire presented greater hot cold weights (P < 0.05), followed by females. However, yield higher...

The aim of this study was to determine the energy requirements for maintenance (NEm) and growth 48 Brazilian Somali ram lambs with an average initial body weight 13.47±1.76 kg. Eight animals were slaughtered at trials beginning as a reference group estimate empty (EBW) composition. remaining assigned randomised block design eight replications per five diets increasing metabolisable content (4.93, 8.65, 9.41, 10.12 11.24 MJ/kg dry matter). logarithm heat production regressed against intake...

The present study aimed to verify the caprine semen characteristics during dry and rainy seasons in Brazilian Northeast, influence of these on cooled semen. Seminal volume, concentration, percentage motile cells, vigor spermatic morphology, as well biochemical profile (fructose, citric acid, P, Ca2+, Mg, total proteins phospholipase A2 activity) were analyzed. It was observed a reduction (P&lt;0.05) normal sperm fructose, Mg protein concentration season, which did not affect motility, vigor,...

In this study, we evaluated the requirements of calcium (Ca), phosphorus (P), magnesium (Mg), sodium (Na) and potassium (K) for sheep hair growth. Experimental diets contained different levels metabolizable energy [ME; 0.96, 1.28, 1.72, 2.18 2.62 Mcal/kg dry matter, (DM), corresponding to 4.23, 5.64, 7.58, 9.61 11.55 MJ/kg DM]. The lambs' (n = 48) at 2 months age presented an average body weight (BW) 12.05 ± 1.81 kg. At beginning experiment, eight animals were slaughtered as a reference...

The aims of this study were to determine the effects body condition score (BCS), breed and dietary supplementation on concentrations leptin, insulin glucose found in blood obtained from hair sheep during breeding season. A further aim was investigate possible association fertility prolificacy with these metabolites, BCS weight (BW). All ewes grazed paddocks ad libitum access mineral salts water. total 96 divided into two groups according treatment: Santa Ines (supplemented or unsupplemented)...

Minerals are limiting factors in animal production, and the knowledge of mineral requirements for livestock is crucial to success a commercial enterprise. Hair sheep may have different than those presents by international committees. A study was carried evaluate net calcium (Ca), phosphorus (P), magnesium (Mg), sodium (Na), potassium (K), zinc (Zn), iron (Fe), manganese (Mn) copper (Cu) growth maintenance Brazilian Somali lambs. total 48 hair lambs (13.5±1.8 kg) aged 60±15 days were...

Abstract This study evaluates the effect of cashew nut meal (CNM), whole cottonseed (WCS), and calcium salts long‐chain fatty acids (Ca‐LCFA) on acid profiles meat from hair lambs. Thirty‐five 60‐d‐old, male, noncastrated Santa Ines lambs with an initial average body weight 13.00 ± 1.80 kg were used in a randomized complete‐block design 7 blocks 5 treatments. The experimental treatments consisted control diet (CON) without supplemental lipids 4 test diets different lipid supplements that...

The objective was to determine the efficiency of utilization metabolizable energy for maintenance (km) and weight gain (kf), dietary requirements total digestible nutrients (TDN) protein (MP), as well as, evaluate Small Ruminant Nutrition System (SRNS) model predict dry matter intake (DMI) average daily (ADG) Santa Ines lambs, fed diets containing different levels (ME). Thirty five non-castrated, with initial body (BW) 14.77 ± 1.26 kg at approximate two months old, were used. At beginning...

An experiment was conducted to evaluate the effects of different lipid sources on nutrient intake, digestibility and purine derivative excretion lambs. Thirty-five 60-day-old, male, non-castrated Santa Ines lambs with an initial average body weight (BW) 13.00 ± 1.80 kg were used in a randomized complete block design seven blocks five treatments. The experimental treatments consisted control diet without supplemental lipids four test diets supplements, selected according degree ruminal...

ABSTRACT The Brazilian bocachico, Prochilodus brevis, is a rheophilic fish. Although there evidence that this species shows reproductive seasonality in the wild, captivity hormonal induction techniques allow semen sampling different seasons. This study aimed to compare kinetics, morphology and biochemical composition of bocachico when hormonally induced breed non-reproductive During spermiation was breeders. concentrations total protein, glucose, fructose, triglyceride, calcium chloride were...

The aim of this study was to evaluate the effects guanidinoacetic acid supplementation for sows and their litter on performance, blood parameters economic viability piglets at nursery phase. A total 80 high-prolific mixed-parity from 3rd 4th parity were randomly distributed between two treatments: control diet supplemented with 0.1% acid. Sows fed dietary treatments during gestation lactation. Piglets weaned 23 days age then in a randomized block design, 2 × factorial arrangement,...

A determinação da composição química do corpo e carcaça é importante em estudos sobre regulação nutricional crescimento. O objetivo presente estudo foi desenvolver equações para predição utilizando a seção entre 9-11ª costela cordeiros Morada Nova. Foram utilizados quarenta oito Nova com peso inicial de 12,05 ± 1,81 kg. Oito animais foram abatidos no início experimento servir como grupo referência o estimar vazio corporal. Os remanescentes distribuídos delineamento blocos inteiramente...

Abstract An experiment was conducted to evaluate whether dietary reduction and sex class affect nutrient intake, digestibility, purine derivative (PD) excretion heat tolerance coefficient in lambs. Thirty-five hair lambs (14.5 ± 0.89 kg initial body weight (BW), 2 months old) were used a completely randomized study with 3 × factorial arrangement, three classes (11 intact males, 12 castrated males females) levels of feeding ( ad libitum , 300 600 g/kg/dry matter (DM) feed restriction) for 120...

This study aimed to evaluate the quality of meat castrated and non-castrated Santa Ines lambs submitted food restriction. Were used 30 lambs, 15 non-castrated, about two months age average initial body weight 13.00 ± 1.49 kg. The were distributed in a completely randomized design factorial arrangement 3 x 2 (restriction level sex class), according amount provided. duration experiment was determined by time required for animals one groups achieved 28 kg weight. There interaction between...

O estudo foi conduzido para estimar as eficiências de utilização da energia metabolizável (EM) mantença (km) e ganho peso (kg) avaliação do modelo Small Ruminant Nutrition System (SRNS) predição consumo matéria seca (CMS) médio diário (GMD) cordeiros Morada Nova em crescimento. Os animais não castrados com dois meses idade, apresentaram corporal inicial 12,05 ± 1,81 kg. Oito foram abatidos no início experimento como grupo referência, o objetivo corpo vazio a composição corporal....

This study was carried out to verify the effects of different hay: concentrate ratios on body, testicular and epididymal development metabolic profile hair sheep lambs. Twenty-nine Santa Ines lambs were used. Treatments consisted diets with (100:0-Control, 80:20- T1, 60:40-T2, 40:60-T3 20:80-T4). The characteristics evaluated were: body weight (BW), condition score (BCS), hearth girth (HG), length (BL), height at withers (HW), rump (HR), width (RW), chest (CW), scrotal perimeter (SP), testis...

We aimed to characterize the energetic profile of hair sheep (Ovis aries) raised on pasture in a tropical climate country and verify it is influence productive reproductive parameters. A total 68 non-pregnant adult ewes were randomly distributed into four genetic groups (GGs) according coat color (Red-coated Santa Inês GG – 17, Black-coated 13, White-coated Morada Nova 28 Red-coated 10). collected blood samples at beginning end breeding season. The efficiency was evaluated by fertility,...

The objective of this study was to evaluate the nutrient intake and suitability test SRNS nutritional model for dry matter (DMI) average daily gain (ADG), Hankins Howe equations estimate carcass empty body chemical composition 35 Santa Ines lambs, non-castrated, with initial weight 14.77 ± 1.26 kg two months old. After 10 days adaptation, five animals were slaughtered serving as reference group estimates (EBW) composition. remaining distributed in randomized block design treatments different...

Este trabalho teve por objetivo comparar a morfometria do trato genital masculino caprino entre epoca seca e chuvosa. Foram coletados 46 52 genitais de machos caprinos na chuvosa, respectivamente. Testiculos foram identificados em direito ou esquerdo, mensurados quanto ao comprimento, espessura diâmetro. Os epididimos pesados. Ductos deferentes o penis comprimento. As vesiculas seminais identificadas direita esquerda, pesadas individualmente, mensuradas largura espessura. parâmetros peso,...