The feeding and the shelter are considered basic needs of the man and one of the options to satisfy them is through the lambs which contribute to cover them with their meat, wool and skin. For the analysis of the yield a flock took itself from twenty females and a stallion one of Pelibuey race...

The wheat occupies an important place in the feeding of the humanity and is the third cereal demanded after the maize and the rice; Sonant occupies the first one in production of wheat at national level with approximately a 45% of the seeded surface. In order to analyze the yield of wheat seedtime...

Dentro del sector agropecuario, la actividad ganadera es una de las principales donde existen 1.5 millones de unidades de producción con diferentes grados de tecnologías y que ocupan alrededor de 200 millones de hectáreas y aporta el 40 % del PIB de este sector El Estado de Sonora es el...