Reproductive parameters and weight gain of roosters fed with waste oil from olive culture

Waste oil from olive oil extraction industry was used, instead of soybean oil, in heavy roosters' diet in order to evaluate birds' reproductive parameters. A total of forty roosters were housed individually in boxes with 1.2 m². Two experimental diets were used: control diet, based on corn, soybean meal, and soybean oil; and test diet, where soybean oil was totally replaced by waste oil. In order to verify weight gain and feed intake, animals were individually weighed weekly. Seven semen collections were performed with fifteen-day interval. Reproductive variables analyzed sperm volume, motility, concentration, and morphology. No statistical difference (p > 0.05) was observed between treatments at the different collection periods for the variables sperm volume, motility, and concentration. There was a statistically significant difference between treatments for body weight in periods three (p = 0.04), and seven (p = 0.04). Statistical differences (p = 0.01) were also observed between treatments for abnormal sperm morphology. Among collection periods, statistical difference was observed for motility (p = 0.00), and sperm concentration (p = 0.01). Total replacement of soybean oil by waste oil from olive oil extraction in young heavy roosters' diets does not affect sperm volume, motility, and concentration; reduces defects in sperm tail, and promotes better weight gain control.(AU)

Reproductive parameters and weight gain of roosters fed with waste oil from olive culture

Waste oil from olive oil extraction industry was used, instead of soybean oil, in heavy roosters diet in order to evaluate birds reproductive parameters. Atotal of forty roosters were housed individually in boxes with 1.2 m². Two experimental diets were used: control diet, based on corn, soybean meal, and soybean oil; and test diet, where soybean oil was totally replaced by waste oil. In order to verify weight gain and feed intake, animals were individually weighed weekly. Seven semen collections were performed with fifteen-day interval. Reproductive variables analyzed sperm volume, motility, concentration, and morphology. No statistical difference (p >0.05) was observed between treatments at the different collection periods for the variables sperm volume, motility, and concentration. There was a statistically significant difference between treatments for body weight in periods three (p =0.04), and seven (p=0.04). Statistical differences (p =0.01) were also observed between treatments for abnormal sperm morphology. Among collection periods, statistical difference was observed for motility (p =0.00), and sperm concentration (p =0.01). Total replacement of soybean oil by waste oil from olive oil extraction in young heavy roosters diets does not affect sperm volume, motility, and concentration; reduces defects in sperm tail, and promotes better weight gain control.(AU)

Pontos críticos na central de difusão genética / Critical points in the genetic diffusion center

A suinocultura brasileira tem uma expectativa de crescimento de 2,4% para o ano de 2017, segundoABPA. Com o crescimento do setor foi necessária a automatização que gerou maior eficiência na produção dedoses inseminantes de suínos em centrais de difusão genética, considerando que as biotécnicas utilizadas buscamotimizar o material genético dos machos, sendo tanto na diminuição do número de células espermáticas por dose,como no número de doses por inseminação. Torna-se cada vez mais necessária a implantação de programas decontrole de qualidade com métodos responsáveis para garantir um produto com maior segurança ao produtor. Oobjetivo da presente revisão foi descrever etapas no processamento da dose inseminante que afetam a qualidadeseminal.(AU)

Brazilian pig farms have an expected growth of 2.4% for the year 2017, according to ABPA. With thegrowth of the sector it was necessary the automation that generated greater efficiency in the production ofinseminating doses of pigs in genetic diffusion centers. Considering that the biotechniques used seek to optimizethe genetic material of the males being both in the decrease of the number of sperm cells per dose as in thenumber of doses per insemination. Thus, it is increasingly necessary to implement quality control programs withresponsible methods to guarantee a product with greater security to the producer. The aim of the present reviewwas to describe steps in insemination dose processing that affect seminal quality.(AU)

Pontos críticos na central de difusão genética / Critical points in the genetic diffusion center

A suinocultura brasileira tem uma expectativa de crescimento de 2,4% para o ano de 2017, segundoABPA. Com o crescimento do setor foi necessária a automatização que gerou maior eficiência na produção dedoses inseminantes de suínos em centrais de difusão genética, considerando que as biotécnicas utilizadas buscamotimizar o material genético dos machos, sendo tanto na diminuição do número de células espermáticas por dose,como no número de doses por inseminação. Torna-se cada vez mais necessária a implantação de programas decontrole de qualidade com métodos responsáveis para garantir um produto com maior segurança ao produtor. Oobjetivo da presente revisão foi descrever etapas no processamento da dose inseminante que afetam a qualidadeseminal.

Brazilian pig farms have an expected growth of 2.4% for the year 2017, according to ABPA. With thegrowth of the sector it was necessary the automation that generated greater efficiency in the production ofinseminating doses of pigs in genetic diffusion centers. Considering that the biotechniques used seek to optimizethe genetic material of the males being both in the decrease of the number of sperm cells per dose as in thenumber of doses per insemination. Thus, it is increasingly necessary to implement quality control programs withresponsible methods to guarantee a product with greater security to the producer. The aim of the present reviewwas to describe steps in insemination dose processing that affect seminal quality.