Cortes comerciales y característica de la canal de borregos y cabritos suplementados con bloques multinutricionales

 Objective. Aimed to identify the weight and yield of the commercial cuts, muscularity, and adiposity in the carcasses of sheep and goats grazing in the Caatinga supplemented with different sources of supplementations; these include feed-blocks. Material and methods. Sixty non-castrated males an initial average body weight of 18.63 ± 1.93 kg were used: 30 goats and 30 sheep all animals did not have a defined breed standard (WDBS). The experimental design used was entirely randomized (DIC), in factorial scheme 3x2 (three types of supplementation: mineral salt, MBs and MBs + buffel hay, and two species: sheep and goats) and 10 replications. Animals were raised in a rangeland grazing system in an area with vegetation characteristic of Caatinga ecosystem under three types of supplementation: 1: only mineral salt; 2: Feed blocks (MBs); and 3: MBs + buffel hay There were measured the weight, yield and the components of left half-part of carcass of lambs and kids. Results. The sheep were superior to goats in carcass conformation, loin-eye area, index of muscularity of the leg and compactness index of the leg while the goats were superior to sheep in leg muscles weight. Conclusions. Sheep and Goats, when fed with supplementation of pasture feeding blocks in the Caatinga ecosystem; Supplementation with mineral salt and Multinutritional Blocks with and without Buffel can be used to improve herds in the caatinga, with similar results among the three. Sheep show more adiposity of meat than goats, in contrast, goats have higher musculature than sheep when fed with feed blocks.Objetivo. Con el objetivo de identificar el peso y rendimiento de los cortes comerciales, musculatura y adiposidad en las canales de borregos y cabritos pastando en la Caatinga suplementado con diferentes fuentes de suplementos; Estos incluyen bloques de alimentación. Material y métodos. Se utilizaron 60 machos no castrados con un peso corporal medio inicial de 18,63 ± 1,93 kg: 30 borregos y 30 cabritos, todos los animales no tenían un estándar de raza definido (WDBS). El diseño experimental utilizado fue totalmente al azar (DIC), en esquema factorial 3x2 (tres tipos de suplementación: sal mineral, MBs y MBs + heno buffel, y dos especies: borregos y cabritos) y 10 repeticiones. Los animales fueron criados en un sistema de pastoreo de pastizales en un área con vegetación característica del ecosistema de Caatinga bajo tres tipos de suplementación: 1: sal mineral solamente; 2: Bloques de alimentación (MBs); Y 3: MBs + heno buffel Se midió el peso, el rendimiento y los componentes de la mitad izquierda de la carcasa de corderos y cabritos. Resultados. Las cordeiros fueron superiores a las cabritos en conformación de carcasas, área de lomo, índice de musculatura de la pierna y índice de compacidad de la pierna mientras que las cabritos fueron superiores a las cordeiros en el peso de los músculos de las piernas. Conclusión. Cordeiros y cabritos, cuando se alimentan con suplementos de bloques de alimentación de pasto en el ecosistema de Caatinga; La suplementación con sal mineral y Bloques Multinutritivos con y sin Buffel puede ser utilizada para mejorar los rebaños en la caatinga, con resultados similares entre los tres. Las cordeiros muestran más adiposidad de carne que las cabritos, en contraste, las cabritos tienen mayor musculatura que las cordeiros cuando se alimentan con bloques de alimentación

Efeitos do genótipo e da condição corporal sobre o desempenho de cordeiros terminados em confinamento Effects of genotype group and of the body condition on the performance of lambs finished in feedlot

Avaliaram-se o desempenho e a margem bruta de lucro de cordeiros terminados em confinamento. Foram utilizados 32 cordeiros não-castrados - 16 Santa Inês (SI) e 16 ½ Dorper × ½ Santa Inês (DpSI) - com 103 dias de idade e 20,0 kg de peso corporal. Os cordeiros receberam ração completa com 30% de feno de maniçoba (Manihot pseudoglaziovii) e 70% de concentrado. O período de adaptação às instalações e à dieta foi de 14 dias. O delineamento experimental foi inteiramente casualizado em esquema fatorial 2 × 2, composto de dois genótipos e dois escores corporais. Não foi observado efeito significativo dos genótipos sobre nenhuma característica de desempenho estudada, contudo, os mestiços (DpSI) possibilitaram maior margem bruta de lucro. A condição corporal afetou significativamente o consumo de matéria seca, a conversão alimentar e o número de dias em confinamento. Os cordeiros com condição corporal intermediária consumiram 1,04 kg/dia e 82,64 g/kg0,75, enquanto aqueles com condição gorda consumiram 1,15 kg/dia e 86,79 g/kg0,75. Os cordeiros com condição corporal intermediária apresentaram menor consumo de matéria seca e melhor conversão alimentar, o que resultou em menor número de dias em confinamento e maior margem bruta de lucro em comparação aos cordeiros com condição corporal gorda, independentemente do genótipo.<br>The objective of this study was to evaluate the performance and the gross margin of profit of lambs finished in feedlot. Thirty-two no castrate male lambs from the genotype Santa Inês and crossbred Dorper × Santa Inês and two body condition, intermediate and fat, were used. The lambs were 16 Santa Inês (SI) and 16 ½ Dorper × ½ Santa Inês (DpSI), with average 103 days old and 20.0 kg BW. The lambs were full fed ration with 30% of maniçoba hay (Manihot pseudoglaziovii) and 70% of concentrate. The adaptation period to the installation and the diet was of 14 days. A completely randomized design in a 2 × 2 factorial arrangement (genotype and body conditions score) was used. There was no significant effect of genotypes on any performance characteristic, however, the crossbred (DpSI) obtained greater margin of profit. The body condition affected the dry matter intake, feed conversion and the number of days in feedlot. The lambs with intermediate body condition consumed 1.04 kg/day and 82.64 g/kg0.75, while those with fat body condition consumed 1.15 kg/day and 86.79 g/kg0.75. The lambs with intermediate body condition showed lower dry matter intake and better feed conversion, which resulted in fewer days in feedlot and greater gross margin of profit compared to lambs with fat body condition, independently of the genotype