Biochemical and seminal parameters of lambs fed palm kernel cake under grazing system

Abstract

-This study aimed to assess the effects of palm kernel cake on semen quality and biochemical parameters of Santa Inês lambs. A total of 40 animals with 24.10±2.72 kg body weight and five months old were assigned in a completely randomized design into four groups and 10 replicates. The animals were subjected to four levels of palm kernel cake (0, 15, 30, and 45%) based on dry matter. The trial lasted 90 days foregone by 15 days for adaptation. Blood samples were collected every 45 days from jugular vein using vacuum tubes without anticoagulant. Total serum cholesterol, triglycerides, high-density lipoprotein, low-density lipoprotein, and very-low-density lipoprotein were assessed. Once the animals reached puberty at a mean age of 225 days, the semen samples were collected by electroejaculator once a week for three sequence weeks and assessed for volume, color, aspect, wave motion, motility, sperm concentration, sperm vigor, total of spermatozoa per ejaculate, viable spermatozoa per mL, and sperm morphology. The data were subjected to analysis of variance and followed by regression analysis. Non-parametric data were analysed by Kruskal-Wallis test. Total cholesterol, high-density lipoprotein, triglycerides, and very-low-density lipoprotein were linearly increased. There was no difference for low-density lipoprotein. Diets did not affect mass motility, sperm motility, vigor, total spermatozoa per ejaculate, viability sperm per mL, and minor and total sperm defects. Sperm concentration increased linearly. Negative quadratic effects were observed for major sperm defects. Supplementation of diets with palm kernel cake up to 45% on dry matter enhance biochemical parameters and do not impair the qualitative variables of lamb sperm.Key Words: animal nutrition, animal breeding, fatty acids, small ruminants Revista Brasileira de Zootecnia

Serum biochemical reference ranges for lambs from birth to 1 year of age in the tropics

“…Although Kaneko et al (2008) did not determine high-and low-density lipoprotein cholesterol concentrations in their study, they highlighted the importance HDL and LDL as the lipoproteins responsible for the transport of cholesterol from the tissues to the liver and vice versa. In an assay with 5-month-old growing lambs grazing on Massai grass in Brazil, Mugabe et al (2017) reported mean HDL and LDL concentrations of 21.24 and 14.58 mg dL -1 , respectively, similar to the HDL value of 21.8 mg dL -1 in 3-month-old lambs raised under an intensive system in India (Babu, Suryanarayana, Raghava, & Asha Latha, 2018). In younger Dorper lambs (15-30 days old), Cruz et al (2017) observed mean HDL and LDL concentrations of 60.4 and 41.8 mg dL -1 , respectively, as a result of a milk-based diet, since the primary energy source in milk is in the form of lipids.…”

Technologies Used in Production Systems for Santa Inês Sheep: A Systematic Review

“…The addition of substances for semen cryopreservation to maintain its viability and quality has been evidenced, bringing benefits to the freezing ( 34 , 35 ) or cooling of semen ( 36 ). And as a dietary strategy, the supplementation with palm kernel cake does not affect seminal parameters and thus could be used as an alternative ingredient in sheep diets ( 37 ). As for the frozen/thawed sperm selection methods, swim-up would be the most advantageous if the goal is in vitro fertilization ( 38 ).…”

Pengaruh Pemberian Konsentrat Fermentasi dan Silase Eceng Gondok (Eichhornia crassipes) terhadap Konsumsi Pakan, Pertambahan Berat Badan, dan Kimia Darah Domba Ekor Tipis

“…Rerata kadar protein di dalam darah domba ekor tipis dengan imbangan konsentrat fermentasi dan silase eceng gondok yang berbeda adalah 7,98±0,06 g/dL. Kadar protein di dalam darah domba lebih tinggi dari pada penelitian Oramari et al (2014) yaitu 6.00± 0.34 g/dl dan penelitian Mugabe et al (2017) yaitu 6,00-7,59 g/dL, tetapi lebih rendah jika dibandingkan hasil penelitian Jawasreh et al (2010) yang melaporkan kadar protein darah domba Awasi adalah 5,0-9,7 g/dl. Kadar protein di dalam darah dipengaruhi oleh kadar protein pakan perlakuan sehingga pakan perlakuan yang memiliki kandungan protein yang hampir sama akan menyebabkan kadar total protein dalam darah tidak berbeda.…”

“…Hal ini disebabkan karena pakan perlakuan memiliki kandungan yang hampir serupa khususnya pada kandungan serat kasar dan protein kasar. Menurut Mugabe et al (2017) dan Hatta et al (2019), kandungan serat kasar pada pakan sangat memengaruhi kadar kolesterol dalam darah. Kadar serat kasar yang tinggi pada pakan menurunkan proses penyerapan lemak dalam usus halus sehingga kadar trigliserida dan kolesterol di dalam aliran darah lebih rendah dan kadar lemak serta kolesterol yang diesekresikan bersama feses semakin tinggi.…”

“…Perbedaan hasil tersebut disebabkan adanya perbedaan bangsa ternak, umur, manajemen pemeliharaan, ketinggian tempat, dan jenis pakan yang digunakan dalam penelitian. Hal ini sesuai dengan hasil penelitian yang menyatakan bahwa faktor utama yang memengaruhi kadar kolesterol dalam darah domba antara lain adalah bangsa dan umur ternak (Oramari et al, 2014;da Cruz et al, 2016), kandungan serat dalam pakan (Mugabe et al, 2017;Hatta et al, 2019), manajemen pemeliharaan dan ketinggian tempat (Mbassa dan Poulsen, 2003).…”