Buscar
Mostrando ítems 1-10 de 139
Efeito da insulação scrotal sobre as características físicas e morfológicas do sêmen de touros jovens
(2013-12-01)
The aim of this study was to evaluate the physical and morphological characteristics of semen from young cattle subjected to experimental testicular degeneration by scrotal insulation method. There were used three animals ...
Non-synonymous mutations mapped to chromosome X associated with andrological and growth traits in beef cattle
(Biomed Central Ltd, 2015-05-15)
Background: Previous genome-wide association analyses identified QTL regions in the X chromosome for percentage of normal sperm and scrotal circumference in Brahman and Tropical Composite cattle. These traits are important ...
Effect of Dietary Selenium and Vitamin E Supplementation on Testicular Morphology and Serum Testosterone Concentration in Goats Following Scrotal Insulation
(Universidade Federal do Rio Grande do Sul, 2016)
Testicular thermoregulation in Bos indicus, crossbred and Bos taurus bulls: relationship with scrotal, testicular vascular cone and testicular morphology, and effects on semen quality and sperm production
(Elsevier B.V., 2004-01-15)
Mechanisms of testicular thermoregulation, the relationship of scrotal, testicular vascular cone (TVC), and testicular morphology with thermoregulatory capability, and their effects on semen quality and sperm production ...
Testicular thermoregulation in Bos indicus, crossbred and Bos taurus bulls: relationship with scrotal, testicular vascular cone and testicular morphology, and effects on semen quality and sperm production
(Elsevier B.V., 2004-01-15)
Mechanisms of testicular thermoregulation, the relationship of scrotal, testicular vascular cone (TVC), and testicular morphology with thermoregulatory capability, and their effects on semen quality and sperm production ...
Does bull temperament impact growth performance and semen quality?
(2020-06-01)
The aim of this study was to evaluate the influence of temperament on body weight and reproductive performance of Nelore bulls. Temperament of 24 young bulls was assessed by chute score (CS) and flight speed (FS). Based ...
RELATIONSHIP BETWEEN SCROTAL CIRCUMFERENCE OF NELLORE BULLS AND COW PREGNANCY RATE IN NATURAL MATING
(Inst Zootecnia, 2016-01-01)
The pregnancy rate is extremely important for the productive efficiency of beef cattle and bull fertility can influence the pregnancy rate of cows in natural mating. The objective of this study was to evaluate the relationship ...
Genetic correlations between body weight, scrotal circumference and visual evaluation scores in Bos indicus cattle
(Wiley-Blackwell, 2018-09-01)
The objective was to estimate genetic correlations between body weight (BW), scrotal circumference and visual evaluation scores of body conformation measured at standard ages in Guzerat cattle. All measurements were performed ...