The domestication and development of cattle has considerably impacted human societies, but the histories of cattle breeds and populations have been poorly understood especially for African, Asian, and American breeds. Using genotypes from 43,043 autosomal single nucleotide polymorphism markers scored in 1,543 animals, we evaluate the population structure of 134 domesticated bovid breeds. Regardless of the analytical method or sample subset, the three major groups of Asian indicine, Eurasian taurine, and African taurine were consistently observed. Patterns of geographic dispersal resulting from co-migration with humans and exportation are recognizable in phylogenetic networks. All analytical methods reveal patterns of hybridization which occurred after divergence. Using 19 breeds, we map the cline of indicine introgression into Africa. We infer that African taurine possess a large portion of wild African auroch ancestry, causing their divergence from Eurasian taurine. We detect exportation patterns in Asia and identify a cline of Eurasian taurine/indicine hybridization in Asia. We also identify the influence of species other than Bos taurus taurus and B. t. indicus in the formation of Asian breeds. We detect the pronounced influence of Shorthorn cattle in the formation of European breeds. Iberian and Italian cattle possess introgression from African taurine. American Criollo cattle originate from Iberia, and not directly from Africa with African ancestry inherited via Iberian ancestors. Indicine introgression into American cattle occurred in the Americas, and not Europe. We argue that cattle migration, movement and trading followed by admixture have been important forces in shaping modern bovine genomic variation.

<p>To achieve animal source food self-sufficiency for coping with increased demand, the government launches policy on beef cattle development. The program focuses on breeding efforts through Artificial Insemination (IB), natural mating, and fattening. It is intended to produce calves such that beef cattle population and beef production improve. This paper aims: (1) to describe inter-temporal government policies on encouraging beef cattle population at farm level; (2) to estimate projections of beef consumption and beef cattle development program; and (3) to discuss feed provision and beef cattle business feasibility. The government commits to meet beef demand and to improve farmers’ income. Brood stock cattle potency could be maximized to produce calves through IB and natural mating in order to accelerate domestic beef cattle population enhancement. To achieve beef self-sufficiency, the government needs collaboration of various stakeholders. It is necessary to encourage investment in livestock business as well as to empower beef cattle farmers such that their business is feasible and their income improves. </p><p> </p><p>Abstrak</p><p>Dalam rangka swasembada pangan hewani karena kebutuhan masyarakat yang semakin meningkat, pemerintah membuat kebijakan pengembangan sapi potong. Program ini fokus pada usaha pembibitan melalui Inseminasi Buatan (IB), kawin alam, serta penggemukan. Pada gilirannya induk akan menghasilkan pedet, sehingga dapat meningkatkan populasi sapi potong dan produksi daging sapi. Berdasarkan permasalahan tersebut di atas diharapkan perkembangan sapi potong dapat meningkat. Tujuan tulisan ini adalah: (1) mendiskripsikan kebijakan pemerintah intertemporal dalam mendorong populasi sapi potong di tingkat peternak; (2) membuat proyeksi konsumsi daging sapi dan program pengembangan sapi potong; dan (3) membahas penyediaan pakan dan kelayakan usaha sapi potong. Komitmen pemerintah adalah untuk memenuhi kebutuhan pangan  asal daging sapi serta meningkatkan pendapatan peternak. Ternak sapi potong indukan dapat dimaksimalkan potensinya untuk dapat terus menghasilkan pedet melalui IB dan kawin alam. Upaya ini dilakukan sebagai wujud untuk mengakselerasi penambahan populasi sapi potong di dalam negeri. Tercapainya pemenuhan kebutuhan pangan asal daging sapi, diperlukan kerjasama berbagai pihak agar populasi sapi potong meningkat. Pemerintah perlu mendorong investasi usaha ternak dan pemberdayaan peternak sehingga peternak mampu mencapai kelayakan usaha dan pendapatan mereka meningkat.</p>

BackgroundThe effect of choline chloride supplementation through forced drinking combined with concentrate diets containing Ca-fish oil on milk production and milk composition of Etawah Grade goats was evaluated. Choline chloride is an essential component in ruminant diets as it is required for fat metabolism.MethodThe experiment was conducted in a completely randomized block design with three types of treatments and eight replications. The trial had two successive experimental periods; the first, during the eight weeks of late pregnancy, and the second, during the first 12 weeks of lactation. Twenty-four Etawah Grade does in the second gestation period were divided into three treatment groups. Commercial choline chloride 60 % in corncobs-based powder was used as a source of choline chloride. The treatments were no supplementation (control) and supplemented with either 4 g or 8 g/2days of choline chloride. Choline chloride was given to the animals through a forced drinking technique, after dissolving it in 60 ml drinking water. The initial body weight of does was 38.81 ± 3.66 kg. The does were penned individually, and were given fresh chopped King Grass ad libitum and 700 g/day of concentrate diets containing Ca-fish oil, starting eight weeks prior to expecting kidding and continuing for 12 weeks of parturition.ResultsAll nutrient intakes were not significantly different (p > 0.05) among the treatments during the late pregnancy and the lactation periods. Supplementation did not affect (p > 0.05) the average daily gains and feed conversion ratio during pregnancy but gave effects (p < 0.05) on the average daily gains, feed conversion ratio and income over feed cost during lactation. The highest average daily milk yields and 4 % fat corrected milk yields were found in goats supplemented with 4 g/2days of choline chloride and increased by 17.00 % and 24.67 %, respectively, compared to the control. Moreover, milk composition percentage and milk constituent yields improved significantly (p < 0.05) in those supplemented with 4 g/2days of choline chloride.ConclusionThe supplementation of 4 g/2days of choline chloride through forced drinking increased milk yields, the 4 % fat corrected milk yields, milk composition, milk constituent yields, and improved feed conversion ratio and income over feed cost of Etawah Grade goats.

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<p>Susu kambing perah disukai masyarakat karena bergizi tinggi dan<br />berkhasiat sebagai obat penyakit tertentu. Produksi susu kambing<br />Indonesia berasal dari induk kambing luar negeri, dan kambing perah<br />peranakan yang sudah beradaptasi dengan kondisi lingkungan tropis<br />di Indonesia. Kambing yang dibudidayakan untuk produksi susu dan<br />daging adalah kambing peranakan etawa (PE), saanen, anglo nubian,<br />dan sapera. Kambing PE paling banyak dipelihara peternak, tetapi<br />produksi susunya belum optimal. Produksi susu kambing PE ratarata<br />857,3 ml/ekor/hari, kambing sapera 1.470 ml/ekor/hari, dan<br />kambing anglo nubian 1.190 ml/ekor/hari. Produksi susu kambing<br />sapera lebih tinggi dibandingkan dengan kambing PE dan anglo<br />nubian, namun komposisi kimiawi (protein, laktosa) susu kambing<br />sapera lebih rendah dibandingkan dengan kambing PE dan anglo<br />nubian. Demikian pula puncak produksi susu kambing induk sapera<br />(2.190 ml/ekor/hari) lebih tinggi dibandingkan dengan kambing<br />anglo nubian (1.980 ml/ekor/hari), dan PE (1.217 ml/ekor/hari).<br />Kualitas dan komposisi susu kambing mirip dengan air susu ibu (ASI)<br />dan susu kambing dapat digunakan sebagai pengganti ASI. Adanya<br />peluang bisnis dari meningkatnya permintaan susu kambing dan<br />harga susu kambing yang cukup tinggi telah menarik banyak orang<br />untuk membudidayakan kambing perah.</p>